Abundant and diverse organisms that lack membrane-bound organelles: This trait describes domain Bacteria.
What is bacteria and archaea?Bacteria are ubiquitous, free-living organisms consisting of one biological cell whereas archaea is a domain of single-celled organisms. Archaea lack cell nuclei and are therefore prokaryotes.
Contain cell walls consisting of peptidoglycan: This trait describes domain Bacteria.
Some used by humans to synthesize chemicals and products: This trait does not describe a particular domain, as microorganisms from multiple domains (Bacteria, Archaea, and some unicellular Eukaryotes) can be used by humans for industrial purposes.
Contain cell walls with unique lipids that help to survive high heat, pH, and salinity: This trait describes Archaea.
Have been found in environments that would not support any other form of life: This trait describes Archaea.
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If there are 8 amino acids, how many bases were on the mRNA?
The number of bases on the mRNA depends on the specific sequence of the mRNA. However, in general, the genetic code is read in groups of three nucleotides (codons), where each codon corresponds to a specific amino acid. Therefore, for 8 amino acids, the minimum number of nucleotides (bases) required would be 24 (3 bases per codon x 8 codons).
What does the genetic code signify?The genetic code is a set of rules that determines how the information in DNA and RNA is translated into the amino acid sequence of proteins. Specifically, the genetic code defines the relationship between the sequence of nucleotides in DNA or RNA (called codons) and the sequence of amino acids in proteins. Each codon is a three-letter sequence of nucleotides, and there are 64 possible codons. Of these, 61 codons correspond to specific amino acids, while the remaining three codons are stop codons that signal the end of protein synthesis. The genetic code is universal, meaning that it is the same in all living organisms, and it is a fundamental aspect of the central dogma of molecular biology.
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mutate a yeast so that its tRNA for methionine no longer works. All of the yeast's proteins will now:
A Be missing all methionine
B No longer be made as methionine is the first amino acid in all proteins
C All proteins will have methionine replaced with cysteine, which is "close enough"
Proteins serve many diverse functions. Some function as ____________ , catalyzing metabolic reactions within cells.
Enzymes. Proteins called enzymes catalyse biological reactions that otherwise would not occur.
Chemical reactions like digestion and cellular metabolism depend on these enzymes. Without enzymes, the majority of physiological processes would move so slowly—or even not at all—that life would be impossible. By aiding the molecular rearrangements necessary for cell activity, enzymes—protein catalysts—speed up biological reactions. Remember that chemical reactions change substrates into products, frequently by joining or separating chemical groups from the substrates. In your body, protein plays a variety of roles. It enables metabolic responses to happen, aids in tissue building and repair, and synchronises biological processes. Proteins provide a healthy pH and fluid balance in addition to giving your body a structural foundation.By serving as enzymes, transporters, or hormones in addition to providing structural support, they aid in metabolism. Amino acids are the monomers—or building blocks—of proteins.
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Which of the following is a description of an example of the second law of thermodynamics?
Description of an example of the second law of thermodynamics are mentioned below.
What is first law of thermodynamics ?
The first law states that if heat is considered to be an energy type, then the overall energy of a system, including its surrounds, is conserved, or that the total energy of the universe stays constant.
What is second law of thermodynamics ?
According to the second law, if a physical process is irreversible, the combined entropy of the system and its surroundings must rise. For a process to be irreversible, the ultimate entropy needs to be higher than the starting entropy: Sf > Si (irreversible process) (irreversible process).
The model of a heat engine is a well-known illustration of the second rule of thermodynamics. In heat engines, a piston is propelled by a cycle of rising and falling temperatures. The amount of work that can be generated by the shifting temperatures in a heat engine is determined by the second law of thermodynamics.
Therefore, description of an example of the second law of thermodynamics are mentioned above.
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Select the best answer. What can the reader infer about the importance the discovery of the shipwrecks has to archaeologists?.
The reader is led to assume that the finding of the ships is significant to archaeologists since it is the only proof of Spain's multiple attempts to establish a permanent settlement in Florida.
The field of ancient exploration known as "archaeologists studies of wrecks" is most frequently focused on thinking about and researching shipwrecks. Paleontology and jumping to get to be submerged archaeology are combined in its tactics. Studying wrecks can help us understand the past, connect us to our social inheritance, and teach us important lessons about how environmental factors and human error can interact.
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Most animals avoid eating monarch butterflies due to their bad taste.
Viceroy butterflies look very similar to the monarchs,
Which of these best explains how the viceroy butterfly benefits
from looking like the monarch butterfly?
A Viceroy butterfiles are able to reproduce with the monarch butterflies,
B Viceroy butterflies are able to deter predators in the same way as
the monarch butterflies,
C Viceroy butterflies are able to follow the migratory patterns of the
monarch butterflies.
D Viceroy butterflies are able to find additional sources of food used
by the monarch butterflies.
Answer: B
Explanation: Since Monarchs are able to deter predators due to their colors/ appearance, by looking similar, the viceroy butterflies are also able to do the same
B Viceroy butterflies are able to deter predators in the same way as the monarch butterflies.
How the viceroy butterfly benefits from looking like the monarch butterfly?The viceroy butterfly benefits from looking like the monarch butterfly because predators have learned to associate the distinctive orange and black coloration of monarchs with a bad taste, and they avoid eating them.
By looking like the monarch, the viceroy butterfly is able to deter predators and increase its chances of survival. This is an example of Batesian mimicry, where a harmless species (viceroy butterfly) mimics the warning signals of a harmful species (monarch butterfly) to avoid being eaten.
The viceroy butterfly has evolved to look very similar to the monarch butterfly, which has a bad taste and is toxic to predators. By mimicking the appearance of the monarch, the viceroy benefits from the monarch's protection, even though it is not toxic itself.
This is an example of Batesian mimicry, a type of mimicry in which a harmless species evolves to resemble a toxic or dangerous species in order to deter predators.
In this case, the viceroy butterfly gains protection from predators without having to expend the energy or resources to produce toxins itself. This is a beneficial adaptation, as it allows the viceroy to survive and reproduce in environments where predators are abundant.
By looking like the monarch butterfly, the viceroy is able to avoid being eaten, and can continue to thrive and pass on its genes to future generations.
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What are properties of mitochondrial genetics and mitochondrial inheritance?
Answer:
Unlike nuclear genes, which are inherited from both parents, mitochondrial genes are inherited only from the mother. If there is a mutation in a mitochondrial gene, it is passed from a mother to all of her children; sons will not pass it on, but daughters will pass it on to all of their children, and so on.
What are the labels of this heart diagram?
The heart is a muscle that pumps blood to different parts of the organism. From the left to the right, labels are Right atrium, Muscle wall - myocardium, Septum, Right ventricle, Left ventricle, Tricuspide valve, Bicuspid valve, Left atrium, Aortic semi-lunar valve, Pulmonary semi-lunar valve.
What are the parts of the heart?The heart is a muscle composed of four cameras
2 ventricles2 atriumsA septum divides the two ventricles and another septum separates the two atriums.
When the heart contracts it sends blood. This contraction can occur in the ventricle or the atrium. It is called Systole.
Atrial contraction occurs first and is followed by ventricular contraction.
During contraction, blood is ejected from the atrium to the ventricles. Then, from the ventricles to the arteries (pulmonary or aorta).
When the heart relaxes blood enters the cavities. It is called diastole. New blood enters and fills first the atrium and then the ventricles again. And the cycle begins all over again.
Steps
1)
Deoxygenated blood returns from the body tissues through the superior cava vein (SCV) or inferior cava vein (IVC).
This blood enters the heart's right atrium (RA), which is the right superior cavity.
2)
Once in the right atrium, blood flows through the tricuspid valve (TV), to the right ventricle (RV), which is the right inferior cavity.
3)
From the right ventricle, the heart pumps blood into the principal pulmonary artery (PPA), through the pulmonary valve (PV).
4)
The pulmonary artery (PPA) takes deoxygenated blood to the lungs, where gas interchange is produced.
5)
Oxygenated blood goes from the lungs to the heart's left atrium (LA), which is the superior left cavity, through the pulmonary veins.
6)
From there, blood flows to the left ventricle (LV), which is the left inferior cavity, through the mitral valve.
7)
Finally, oxygenated blood goes from this last ventricle to the aorta (A) through the aortic valve. And from the aorta oxygenated blood moves to the rest of the body tissues.
Note: Usually, oxygenated blood is represented in red, while deoxygenated blood is represented in blue.
Image (from the left to the right):
Right atriumMuscle wall - myocardiumSeptumRight ventricleLeft ventricleTricuspide valveBicuspid valveLeft atriumAortic semi-lunar valvePulmonary semi-lunar valveYou can learn more about the heart parts at
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Baby Vincent has type A blood , and his mother has type O blood . His mom suspects Larry is the father . Could Larry be the baby - daddy if he has B blood ? Prove your results !
Answer: No, Larry cannot be the father if he has type B blood.
Explanation:
Blood type inheritance is determined by the genes that are passed from the parents to the offspring. Blood type is determined by two genes, A and B, which code for the presence of A and B antigens on the surface of red blood cells. Blood type O does not have either antigen, while type AB has both.
In this case, Baby Vincent has type A blood, which means he has the A antigen on his red blood cells. His mother has type O blood, which means she does not have either the A or B antigens on her red blood cells.
If Larry is the father, he must have at least one gene for the A antigen, as he would have passed it on to Baby Vincent. However, if Larry has type B blood, he does not have the A antigen and cannot be the father of Baby Vincent.
To prove this result, we can use a simple Punnett square, which is a tool for predicting the possible outcomes of a genetic cross. The Punnett square for this scenario would show that all of the offspring from a cross between a type O mother and a type B father would have type B blood, and none would have type A blood. This means that if Larry has type B blood, he cannot be the father of Baby Vincent, who has type A blood.
Which organ systems are responsible for coordinating body function
Answer: The Nervous and Endocrine systems are the organ systems that are responsible for coordination body functions.
Explanation: They both help in coordinating body functions and regulate the body functions.
You have discovered a bacteria, and obtained a pure culture. Your analysis reveals remnants of a large number of OpmF molecules as well as molecules appearing to be disaccharides of glucoseamine with attached fatty acids. Test for H antigen was positive, but no flagella were visualized, even after the application of a mordant. you also find N-acetlyMuramic Acid linked to Glucosamine with a Beta1,4 linkage. Testing reveal that the bacteria was motile. DESCRIBE this bacteria in terms of the Gram reaction you expect. In addition, describe the molecular structure of the typical cell wall expected (be detailed, as detailed as the text in describing the cell wall!). WHAT type of motility structure do you suspect and why can't it be visualized?
Based on the presence of OpmF molecules and disaccharides of glucosamine with attached fatty acids, a positive H antigen test, and N-acetylMuramic Acid linked to Glucosamine with a Beta1,4 linkage are given.
The bacteria is expected to be Gram-negative with a typical cell wall structure containing lipopolysaccharides and porins. The bacteria are likely to have peritrichous flagella, which cannot be visualized due to their small size and lack of a mordant.
The presence of OpmF molecules and disaccharides of glucoseamine with attached fatty acids, as well as a positive H antigen test, suggest that the bacteria is likely to have a Gram-negative cell wall structure. This is because Gram-negative bacteria have a unique outer membrane that contains lipopolysaccharides and porins, which are large protein channels such as OpmF that allow the passage of certain molecules.
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13. Linus Pauling proposed a DNA structure in which the prophase groups were tightly packed on the molecule's inside, leaving the nitrogenous bases sticking outward.
a) Which scientist's findings did Linus Pauling need to propose the correct 3D-structure DNA?
b) If DNA replication occurred in this structure, how would it differ from what you know is the actual process? Explain your reasoning
14. While working with a particular strain of E. coli, you discover that it transcribes the lac genes at a high level when no lactose is present in the cell's medium.
a) Explain how the lac operon functions typically.
b) List the possible causes of this abnormal activity.
c) Then design an experiment to determine which of these possible causes is the case with your bacterial colony.
The lac operon follows a negative, inducible mode of regulation. This means that the transcription of the operon is turned OFF in the absence of lactose and is only induced into activity when lactose is present in the medium.
What is lac operon?
a) If the genotype of the lac operon is normal, i.e. it does not contain any mutations, then,If lactose is present in the medium:-When lactose is present in the medium, it is translocated into the cell because the operon always produces a small amount of permease. The allolactose molecule binds to the repressor molecule and inactivates it.An inactivated repressor can no longer bind to the operator and as a result all genes are transcribed, i.e. the operon is turned on.Also, the absence of glucose leads to the production of large amounts of cAMP in the cell, which binds to the CAP protein. This complex then binds to the CAP site and increases the rate of transcription of the operon.If lactose is not present in the medium:-In the absence of lactose, the repressor remains active and binds to the operator. This prevents RNA polymerase from binding to the promoter and the operon is not transcribed, i.e. the operon is turned off.When both lactose and glucose are present:-Glucose will be used first because it is the preferred energy source and during this time there will be minimal transcription of the lac operon.b) If the lac operon is expressed at high levels even in the absence of lactose, it means that it shows constitutive expression, i.e. it is expressed regardless of the availability of lactose in the medium.This can be possible for two reasons:-1) A mutated lacI gene (lacI-) that produces an inactive or mutant repressorIn this case, the mutation alters or alters the promoter region of the lac1 gene, since this gene has a promoter separate from that of the structural genes. This means that if the promoter of that gene is altered so that it can no longer bind to the RNA polymerase enzyme, that gene will not be transcribed or expressed. As a result, the repressor protein will not be produced and the operon will therefore be constitutively active.2) Mutation operator, i.e. operator Oc In this mutation, the repressor binding site on the operator is mutated in such a way that it cannot bind to the repressor protein even in the absence of lactose. If the repressor cannot bind to the operator, then the operon will be expressed regardless of the presence or absence of lactose.C)In the case of a mutant lacI gene, we know that the promoter of this gene will be changed so that it can no longer bind to the RNA polymerase enzyme and the gene will not be transcribed. that is, this gene will not produce any mRNA or repressor protein in the absence of lactose, whereas the normal operon does,In the case of a constitutive operator, the operator will not be able to bind the repressor even in the absence of lactose. Thus, even if lactose is not available in the medium, there will be a higher concentration of free repressor protein in the cytoplasm of the cell.This means that in the case of the lacI- mutant there will be no repressor protein, while in the case of the Oc mutant there will be a high concentration of the repressor protein in the cell cytoplasm.Thus, this difference in the presence of the repressor protein can be used to distinguish between a cell with a normal and a lacI-mutated operon by Western Blot analysis.This is because this technique tests for the presence of specific proteins present in the cell sample using complementary antibodies that specifically bind to the target protein and are conjugated to a marker enzyme that stains the chromogenic substrate blue.To know more about lac operon, click the link given below:
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Under which circumstances would an error during DNA replication be most
likely to cause genetic variation?
A. The error is so minor that the cell can still fully function.
B. The error occurs in a gamete and the resulting offspring survives.
C. The error occurs early in development and causes observable
changes in the organism.
D. The error prevents the parent cell from completing its cell cycle.
The correct option is B. The error occurs in a gamete and the resulting offspring survives.
What effects can DNA replication errors cause on cell division?DNA replication errors can occur during cell division, and these errors have the potential to introduce genetic variation. However, in order for the error to result in genetic variation that can be passed on to future generations, it must occur in a cell that gives rise to gametes (sperm or egg cells). If the error occurs in a somatic cell (any cell in the body that is not a sperm or egg cell), it will not be passed on to offspring.
Furthermore, for the error to cause genetic variation, the offspring must survive and be able to pass on the error to its own offspring. If the error occurs in a critical gene that is necessary for survival, the offspring may not survive.
Therefore, an error during DNA replication would be most likely to cause genetic variation if it occurs in a gamete and the resulting offspring survives.
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What locations on earth are able to utilize radiocarbon dating accurately
Answer:
Explanation:
Radiocarbon dating can be accurately utilized in any location where organic materials can be found and collected for testing. This includes archaeological sites, geological deposits, and ecosystems. Some of the most well-known locations where radiocarbon dating has been utilized include:
archaeological sites in Europe, Asia, Africa, the Americas, and Australia
peat bogs and lake beds in Europe and North America
coral reefs in the Pacific and Indian Oceans
ice cores from Antarctica and Greenland
tree-ring sequences in North America, Europe, and Asia
It's important to note that the accuracy of radiocarbon dating depends on several factors, including the preservation of the sample, the size of the sample, and the contamination of the sample. Proper collection, storage, and preparation of the sample are crucial to obtain accurate results from radiocarbon dating.
Bacteria in the GI tract perform all of the following functions except:A.) protecting people from infectionB.) producing biotinC.) producing vitamin KD.) producing bile
Bacteria in the GI tract perform all the following functions except producing bile. Therefore, the correct option is D.
What is the GI tract?The GI tract is also called the Gastrointestinal tract. It is a path or the passage of the digestive system which begins from the mouth where the food enters and ends at the anus where the undigested food is expelled out of the body. It is also called alimentary canal.
Bacteria in the GI tract play an important role in human health by performing a wide range of functions. Some of the functions that these bacteria perform include producing biotin, which is a B vitamin that is significant for healthy skin, hair, and nails, and producing vitamin K, which is essential for blood clotting.
However, producing bile is not a function of the bacteria in the GI tract. Bile is produced by the liver and stored in the gallbladder. Therefore, the correct option is D.
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A disease kills the mice. Explain how the maize harvest will be affected.
maize ->mice->snakes->
Answer:
Two hshshehdhehwjwkwkwooeidudd
Which of the following statements about
theories is true?
O Theories are based on certain assumptions.
O Theories change to incorporate new findings.
O Theories and research are interwoven.
O All of these.
Theories change to incorporate new findings.
What are theories in science?In science, a theory is a well-substantiated explanation of some aspect of the natural world that is based on a body of facts that have been repeatedly confirmed through observation and experiment. Theories provide a framework for understanding and making predictions about a particular phenomenon.
A scientific theory is not the same as a "theory" in everyday usage, where it often refers to a speculative idea or an opinion. In science, a theory must be supported by a large body of empirical evidence and must be able to withstand rigorous testing and scrutiny from the scientific community.
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Salicylic acid is one of the hormones proposed to be important for systemic acquired resistance (SAR). Which of the following observations would suggest that salicylic acid is an important signaling molecule for SAR in response to infection by tobacco mosaic virus (TMV)?Salicylic acid is one of the hormones proposed to be important for systemic acquired resistance (SAR). Which of the following observations would suggest that salicylic acid is an important signaling molecule for SAR in response to infection by tobacco mosaic virus (TMV)?When a leaf of a plant is infected by TMV, salicylic acid is only present in infected leaves.Salicylic acid is present in leaves before a TMV infection, but not after.A plant is more likely to be infected by TMV if salicylic acid is present.Levels of salicylic acid increase in the vascular tissue fluid of a plant when a single leaf is infected with TMV.
Increased levels of salicylic acid in vascular tissue fluid suggest it's important for systemic signaling and defense against TMV.
The observation that levels of salicylic acid increase in the vascular tissue fluid of a plant when a single leaf is infected with TMV suggests that salicylic acid is important for systemic signaling in response to TMV infection, activating the plant's defense response.
Systemic acquired resistance (SAR) is a defense mechanism in plants that provides protection against future pathogen attacks. Salicylic acid is proposed to be an important hormone for the activation of SAR in response to infection by tobacco mosaic virus (TMV). The observation that levels of salicylic acid increase in the vascular tissue fluid of a plant when a single leaf is infected with TMV suggests that salicylic acid is involved in the systemic signaling process that activates the plant's defense response. This allows the plant to mobilize a rapid and effective defense response against future pathogen attacks.
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Increasing the external magnetic field strength ___ the energy gap between spin states and therefore ___ the frequency required for resonance.
Increasing the external magnetic field strength increase the energy gap between spin states and therefore increase the frequency required for resonance.
With increasing applied field, the energy gap between the two spin states widens. When electromagnetic radiation is at resonance with the processional frequency, resonance is achieved. The amount of magnetic field used alters the amount of energy needed and resonance frequency. The energy difference between the spin states grows as the magnetic field strength does, increasing the frequency in turn.
The frequency necessary for resonance rises when the energy difference between spin states widens due to an increase in the intensity of the produced magnetic field.
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Question- what type of circuit is in the diagram?
Color blindness is caused by a recessive allele located on the X chromosome . Affected people experience the inability to distinguish colors . Cross a woman who suffers from Color blindness with a man who is normal . Show genotypic and phenotypic percentages of the generation
Answer:
The genotypic and phenotypic percentages of the offspring from a cross between a woman with color blindness (XCXc) and a man with normal color vision (XY) would be:
Genotypic percentages:
50% XCXC (homozygous dominant, normal color vision)
50% XCY (heterozygous, normal color vision)
Phenotypic percentages:
100% normal color vision
Explanation:
Color blindness is caused by a recessive allele located on the X chromosome, which means that it is a sex-linked trait that is more commonly found in men than in women. Women are more likely to be carriers of the allele, as they have two X chromosomes, but they do not typically experience the symptoms of color blindness. Men have only one X chromosome, which means that they are more likely to be affected by the recessive allele if they inherit it from their mother.
In this cross, the woman with color blindness (XCXc) has one dominant allele for normal color vision (XC) and one recessive allele for color blindness (xc). The man with normal color vision (XY) has one dominant allele for normal color vision (X) and one recessive allele for sex determination (Y).
When these individuals have offspring, each child will inherit one X chromosome from each parent. This means that each child will have either XCXC, XCXc, or XCY genotype, depending on which X chromosome they inherit from each parent.
The genotypic percentages of the offspring would be:
50% XCXC (homozygous dominant, normal color vision)
50% XCY (heterozygous, normal color vision)
Since the dominant allele for normal color vision (XC) masks the recessive allele for color blindness (xc), all of the offspring would have normal color vision, regardless of their genotype.
The phenotypic percentages of the offspring would be:
100% normal color vision.
Water and minerals are transported from the roots to the rest of the plant through the phloem.
Answer:
False
Explanation:
Xylem transports water, minerals, and nutrients from the soil to all the plant parts. There are two types of "transport" tissues in plants- xylem and phloem. Water and solutes are transported by the xylem from the roots to the leaves, and food is transported from the leaves to the rest of the plant by the phloem.
Which of the following statements is NOT true of bacteria? A. Some species are used in the commercial production of food products B. Bacteria entering the bloodstream from a cut can be controlled with an antiseptic C. Colony shape, color, and texture is characteristic of a species D. They are unicellular microorganisms that live in diverse environments
Bacteria is a unicellular microorganism, that does not have a nucleus. their genetic material floats into the cytoplasm, hence option E is correct.
What is the characteristic of bacteria?Bacteria is a microorganism and is categorized into prokaryotes, there are the following characteristics of bacteria:
They are unicellular microorganisms that live in diverse environments.Colony shape, color, and texture are characteristic of a species.Bacteria entering the bloodstream from a cut can be controlled with an antiseptic.Some species are used in the commercial production of food products.Therefore, bacteria are unicellular microorganisms not having a true nucleus.
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The given question is incomplete, so the most probable complete question is,
Which of the following statements is NOT true of bacteria? A. Some species are used in the commercial production of food products B. Bacteria entering the bloodstream from a cut can be controlled with an antiseptic C. Colony shape, color, and texture is characteristic of a species D. They are unicellular microorganisms that live in diverse environments, E Bacteria has a nucleus.
Describe why monitoring the growth (a) Describe why monitoring the growth rate of the E. Coli-M bacteria is a useful indicator of the effect of the glycolytic enzyme mutation on the bacteria. Of the E. Coli
Answer: because the flow of intracellular metabolic components depends on the availability of carbon
Explanation: The response indicates that if the mutation interferes with glucose breakdown, less ATP will be available to the cells. The change in ATP availability will reduce the growth rate and population size of the bacteria , and since it is considered as model organism due to various factors such as its ability to grow fast using cheap media and availability of molecular tools to perform genetic manipulations it is termed as useful indicator
Feature of enzymes that describes how they will only
catalyze one specific substance because they
physically bind with that substance in a unique way
This is known as enzyme specificity. Enzymes are proteins that have specific structures that allow them to bind to one particular substrate, or reactant, and catalyze a reaction that produces a specific product.
What is enzyme?Enzymes are proteins that act as catalysts in biochemical reactions. They accelerate specific biochemical reactions by reducing the amount of energy required to activate the reaction, allowing them to occur more quickly and efficiently. Enzymes are found in all living organisms, including bacteria, plants, and animals. They are responsible for every chemical reaction that occurs in the body, including breathing, digesting food, and synthesizing hormones. Enzymes are essential for life and can be used to create a variety of products, including drugs, food additives, and fragrances.
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In many situations, algal reproduction is affected by external conditions. Look at this graph of hypothetical data that compares the growth rate of S. platensis over a period of 5 days when exposed to different light levels. Given these data, what light levels would you use for a bioreactor containing this species?
From the given graph it can be inferred that in the growth of Spirulina platensis alga, over a period of five days maximum biomass was produced at a light intensity of 2000 lux. So the light levels that would be optimum to use in a bioreactor would be 2000lux. Option C is correct.
What is the usefulness of S. platensis?Spirulina platensis is a microalgae. It is used to produce several fine chemicals. It is used in industries to produce proteins, vitamins, Beta-carotene, phycocyanin, and linolenic acid. It is also a great source of nutraceuticals.
The most crucial variables for the large-scale production of Spirulina biomass are nutrient availability, temperature, and light. Spirulina platensis has a high economic importance due to the production of a variety of pigments and nutraceuticals.
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The given question is incomplete. the most probable question is:
1. In many situations, algal reproduction is affected by external conditions. Look at this graph of hypothetical data that compares the growth rate of S. platensis over a period of 5 days when exposed to different light levels. Given these data, what light levels would you use for a bioreactor containing this species?
Options:
A. 500 lux
B. 1000 lux
C. 2000 lux
D. 3000 lux
What is the pathway of blood in the cardiovascular system
Answer: Through the tricuspid valve, the heart moves oxygen-poor blood from the right atrium to the right ventricle. The blood is subsequently pumped by the right ventricle down the pulmonary artery to the lungs, where it enters the respiration process to absorb oxygen and expel carbon dioxide. The oxygen-rich blood then travels through the pulmonary veins back to the left atrium of the heart. Through the mitral valve, the left atrium delivers blood that is oxygenated to the left ventricle. The aorta, which divides into smaller arteries that carry blood to numerous organs and tissues, is how the left ventricle subsequently pumps the oxygen-rich blood to the rest of the body.
What happens at a divergent plate boundary when two oceanic plates are involved? Give
detail.
What does a cactus need from its habitat for its survival
Answer:
Cacti need sunlight, infrequent water, well-draining soil, suitable temperatures, and good air circulation for survival.
How does the medulla respond when the body's blood pH is too high?
A. It sends signals to the blood vessels to dilate.
B. It sends signals to the skeletal muscles to increase their activity.
C. It sends signals to the stomach to digest more food.
D. It sends signals to the lungs to decrease the breathing rate.
