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.
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
Certain amino acids in the protein help an enzyme catalyze the conversion of
substrates into products.
Where are these amino acids located?
On the outside surface
On cofactors
At the active site
On each end of the polypeptide
Answer:
The correct answer is "At the active site."
Explanation:
Enzymes are proteins that catalyze chemical reactions. The active site of an enzyme is the specific region where the substrate binds and the chemical reaction takes place. Certain amino acids located in the active site play a crucial role in catalyzing the reaction by positioning the substrate correctly and facilitating the formation of chemical bonds. These amino acids are usually found on the surface of the protein, and their specific arrangement and chemical properties are crucial for the enzyme's activity.
Answer:
At the active site
Explanation:
In a protein, certain amino acids play a crucial role in catalyzing the chemical reaction that converts substrates into products. These amino acids are located at the active site of the enzyme, which is the specific location where the substrate molecules bind and undergo chemical transformation. The active site is made up of a specific arrangement of amino acids that form a pocket or groove where the substrate fits and interacts with the enzyme to facilitate the reaction. The amino acids at the active site are strategically placed and oriented to form chemical bonds with the substrate, helping to bring about the desired reaction.
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.
"The life cycle of a plant is a set of major stages that an organism will go through. Fruits start as spores that are embryos with food storage. When the seed germinates, the sprout will begin to grow. When the sprout begins to grow, it turns into a seedling and then an adult plant." What statement will correct the mistake in Martin's report?
The statement "Fruits start as spores that are embryos with food storage" is incorrect.
What are spores?A spore is a unit of reproduction in biology that can be adapted for dissemination and survival, frequently for long periods of time, in unfavorable environments.
It is untrue to say that fruits begin life as spores, which are embryos with food storage.
Fruits do not begin as spores; rather, after fertilization, they emerge from the ovary of a flower. In contrast, other plants, including ferns and mosses, reproduce asexually through the use of spores.
A correct response that would address Martin's report's error would be:
"After fertilization, seeds begin to form as embryos that can store nourishment inside the ovary of a flower. Once the seed has begun to grow, it will produce a sprout, which will later mature into a seedling and finally an adult plant."
Thus, this statement will correct the mistake in Martin's report.
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What incomplete dominance effects on phenotype
Incomplete dominance effects on phenotype is that it leads to the production of an offspring which has intermediate phenotypes.
What is Incomplete dominance?This is also referred to as partial dominance and it is a form of gene interaction in which both alleles of a gene at a locus are partially expressed, often resulting in an intermediate or different phenotype.
It results in heterozygotes with intermediate phenotypes, as in the case of snapdragons when parents with red flowers and white flowers are crossed resulting in heterozygous offspring with pink flowers thereby making it the correct choice.
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What are examples of diseases/disorders that are transmitted through mitochondrial inheritance?
Diseases/disorders that are transmitted through mitochondrial inheritance include Leigh syndrome, Pearson syndome, MELAS, etc.
What are mitochondrial inheritances?Mitochondrial inheritance refers to the transmission of genetic material exclusively from the mother's mitochondria to her offspring. Some examples of diseases or disorders that are caused by mutations in mitochondrial DNA and are therefore transmitted through maternal inheritance include:
Leber's hereditary optic neuropathy (LHON)Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS)Myoclonus epilepsy with ragged-red fibers (MERRF)Kearns-Sayre syndrome (KSS)Leigh syndromeNARP syndrome (neuropathy, ataxia, and retinitis pigmentosa)Pearson syndrome (pancytopenia and exocrine pancreatic insufficiency).Overall, mitochondrial inheritance is relatively rare and is only responsible for a small fraction of inherited genetic diseases.
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Plant and animal cells release energy stored in the bonds of glucose molecules when they perform
OA. meiosis.
OB. metamorphosis.
OC. photosynthesis.
OD. cellular respiration.
Lyle knows that the distance from his house to his school is three-fourths of a mile. On the map he has drawn of his neighborhood, they are one-fifth of an inch apart. What scale could lyle include on the map? select three options. One-fifth inch = three-fourths mile three-fourths inch = one-fifth mile four-fifths inch = 3 miles 3 inches = 12 miles 4 inches = 15 miles.
Lyle's scale might allow for the inclusion of the appropriate alternatives (A), (C), and (E). (A) A half-inch equals a mile (C) 3 miles = 4.5 inches (E) 15 miles in 4 inches.
Distance is calculated as the sum of a person's movement and time. Let D be the actual distance in miles between any two points, and let d be the distance shown on the map between any two points, measured in inches. The distance on the map to the actual distance is equivalent to 1/5 of an inch because the scale on the map is 1/5 inch = 3/4 mile; d/D = (1/5)/(3/4). 1/5 inch equals 3/4 mile. 3 miles = 4.5 inches 15 miles in 4 inches.
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Lab: The goal is to get knowledge of some of a cell's basic building blocks and to look into onion cell structure. Additionally, the aim of this experiment is to examine the appearance of an onion skin cell in a hypotonic solution under a microscope.
Question: Why is it important to know the results of this lab? Relation to our body/health/society?
Answer:
Knowing the results of this lab is important for several reasons. First, it gives us a better understanding of the basic building blocks of a cell and how they work together to form the complex structures that make up our bodies. This knowledge can then be applied to better understand a variety of biological processes, such as disease and development. By examining the structure of onion skin cells under a microscope, we can gain insight into the structure of other cells in our body, such as those found in our skin, muscles, and organs. This knowledge can help us to better understand the structure and functioning of our bodies, which can lead to more effective treatments for diseases, as well as a better understanding of how our bodies work. Additionally, this knowledge can help to inform research into other areas, such as agriculture, where understanding the structure and functioning of cells is essential for successful crop production.
all of the following hormones increase or decrease plasma glucose concentration by regulating glycogenolysis (converting glycogen to glucose) except?
Insulin is the hormone that controls glycogenolysis to lower plasma glucose levels. Insulin is the solution as a result.
By encouraging liver glycogenolysis, cortisol, glucagon, and epinephrine all raise plasma glucose levels. Only insulin, out of all the hormones mentioned, lowers plasma glucose levels via controlling glycogenolysis. The pancreas, an organ behind the stomach, produces the hormone insulin in its beta cells. By boosting the body's cells' ability to absorb glucose, it controls the quantity of glucose in the blood. As we eat, the food's carbs are broken down into glucose, which is then absorbed into the circulation. Insulin is then released by the pancreas in response, telling the cells to either take up glucose from the blood and utilise it as fuel immediately or store it for later use. Moreover, insulin is essential for controlling how proteins and lipids are metabolized.
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The above question is incomplete. The complete question is given below-
All of the following hormones increase or decrease plasma glucose concentration by regulating glycogenolysis (converting glycogen to glucose) EXCEPT?
Cortisol
Glucagon
Epinephrine
Insulin
Fruit flies have sensory receptors that respond to different chemicals. Some of these receptors are sensitive to chemicals that make up odors
while others are sensitive to chemicals that make up tastes. For example, one type of taste receptor in fruit flies is sensitive to the taste of
water. Scientists performed an experiment to examine the role of odor and taste receptors in guiding the behavior of fruit flies.
The scientists' experiment took place in two phases. In the training phase, the scientists kept the fruit flies away from water for 16 hours. Then,
they placed the fruit flies in a chamber filled with a specific odor (odor 1) but no water for 2 minutes. They next transferred the flies to a second
chamber filled with a different odor (odor 2) and water for 2 minutes.
In the next phase, the scientists tested the fruit flies by placing them in a testing maze with two arms, one of which contained odor 1 and the
second which contained odor 2. Neither of these arms contained water. The scientists counted the number of flies that went into each arm. The
testing phase was completed after different amounts of time had passed after the training phase. The scientists then repeated this experiment
with flies that lacked the taste receptor for water. The table below shows the number of flies that went into each arm in all of the trials.
Flies That Cannot Taste Water
Normal Flies
Odor 1 Odor 2
Odor 1
Odor 2
3 minutes
36
64
55
45
3 hours
33
67
45
55
24 hours
30
70
51
49
Data adapted from Shyu et al. 2017. Nature Communications. Licensed under CC BY 4.0.
Time After Training
How do the scientists' findings support the argument that the information fruit flies take in through their sensory receptors can be stored as
memories?
A. by showing that fruit flies that could not taste water were not attracted to odor 2 by 24 hours after training
B. by showing that more of the fruit flies that could taste water were attracted to odor 2 than odor 1 at 24 hours after training
OC. by showing that fruit flies that could taste water were more attracted to odor 2 during the training period than were fruit flies that
could not taste water
D. by showing that fruit flies that could not taste water were less likely to locate water in the maze than fruit flies that could taste water
Scientists' findings support the argument that the information fruit flies take in through their sensory receptors can be stored as memories by showing that fruit flies that could taste water were more attracted to odor 2 during the training period than were fruit flies that could not taste water which is denoted as option C.
What are Sensory receptors?
These comprises of specializes cells which detect changes in the internal as well as external environment.
Fruit flies take in through their sensory receptors can be stored as memories by showing that fruit flies that could taste water were more attracted to odor 2 during the training period than were fruit flies that could not taste water according to the result gotten from the experiment.
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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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Which body system determines whether the body has excess water that must
be removed by the excretory system?
A. Endocrine system
OB. Circulatory system
OC. Digestive system
OD. Nervous system
Answer:
Nervous system
Explanation:
This is because the nervous system sends messages to the excretory system to release body waste from the body
The haploid cells of a kangaroo contain 8 chromosomes. How many chromosomes are in a kangaroo's diploid cells?.
The number of chromosomes in a kangaroo's diploid cells is 16, as opposed to the haploid cells 8 chromosomes.
In a kangaroo's diploid cells, how many chromosomes are there?Chromosome number 20 in the red kangaroo is diploid (2n = 18+XY, 2n = 18 + XX). All chromosomes can be distinguished morphologically, with the exception of chromosomes 8 and 9, which can be distinguished by G-banding (Rofe 1979).
How many chromosomes do kangaroos have that are haploid?The important thing to remember is that these are haploid. We are aware everything is ok. We may show that 1 end would equal 8 points by dividing each side by 2 if 2 n equals 16. Therefore, this kangaroo has a haploid number of 8.
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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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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.
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.
Water has an unusually high
specific heat. What does this
mean?
a) At its boiling point, water changes from liquid to
vapor.
b) A large amount of heat is required to raise the
temperature of water.
c) Ice floats in liquid water.
d) Salt-water freezes at a lower temperature than
pure water.
e) Floating ice can insulate bodies of water.
Water has an unusually high specific heat. This mean 'a large amount of heat is required to raise the temperature of water'.
What exactly do you mean by temperature?
Temperature is a measure of the average kinetic energy of molecules in a sample of matter, expressed in terms of degrees on a specific temperature scale. Temperature can be measured using thermometers, which use materials that expand or contract in response to changes in temperature.
The high specific heat of water means that it has a high heat capacity. This means that it can absorb a lot of energy before its temperature increases. This is due to the strong hydrogen bonds between water molecules, which require a lot of energy to break. When energy is added to water, the hydrogen bonds absorb it and the temperature of the water rises slowly. This is why it takes a lot of energy to raise the temperature of water.
Hence, option B is correct.
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All the mockingbirds that live in the same place at the same time make up
a(n)
O A. ecosystem
OB. habitat
OC. biome
OD. population
Answer: population
Explanation: because there are a lot of birds living there like there a lot of people in a city that's also a population example
In which of the positions below is the Southern Hemisphere receiving the highest angles of insolation?
• A
• B
• C
• D
The position that sees the Southern Hemisphere receiving the highest angle of insolation is Position A.
What is the angle of insolation ?The angle at which the sun's rays fall on a specific spot on Earth is known as the angle of insolation. The Earth orbits the sun in an elliptical route rather than a perfect circle, thus some seasons of the year see Earth closer to the sun than others.
At position A, the tilt of the Earth is such that the Southern Hemisphere is more exposed to the sun which means that this is the point of the highest angle of insolation.
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Using what you learned about glucose and what you know about the structure and function of a plasma membrane, Explain why a molecule like glucose (even in a greater concentration outside the cell compared to inside the cell) cannot cross the phospholipid bilayer of the plasma membrane and instead must travel through a protein "gate."
Glucose is a large, polar molecule that has a hydrophilic nature, meaning it is attracted to water.
What is polar molecule?A polar molecule is a molecule with a net electric dipole moment due to the difference in electronegativity of its atoms. These molecules have a positive charge at one end and a negative charge at the other, which makes them a magnetically active compound.
Due to its size, it cannot pass through the phospholipid bilayer of the plasma membrane. The phospholipid bilayer is a hydrophobic barrier, meaning it repels water and is composed of hydrophobic molecules. Additionally the phospholipids are arranged in a two-dimensional sheet, making it difficult for larger molecules like glucose to pass through.
In order for glucose to enter the cell, it must travel through a protein “gate”. These proteins are known as transmembrane proteins, and they act as channels or pumps that allow molecules like glucose to pass through the phospholipid bilayer. The proteins are able to open or close depending on the concentration of glucose outside or inside the cell, allowing the molecule to be transported across the membrane.
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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.
True or False:
For a new species to arise, some individuals of a species
must become reproductively isolated from the others. (Ex.
Squirrels being separated by an uncrossable river.)
TRUE
FALSE
Answer: true
Explanation:
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.
give difination of culture
Answer:
Culture is the arts and other manifestations of human intellectual achievement regarded collectively.
Culture is also the ideas, customs, and social behavior of a particular people or society.
A population's collective ways of life, including its institutions, beliefs, and artistic expressions, are collectively referred to as its culture. A society's whole way of life has been referred to as its culture. It encompasses manners, dress, language, religion, rituals, and artistic standards as a result.
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.
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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2. "Every disease has a biological cause not psychological." Argue for or against with this idea/argument.
Answer: The statement "Every disease has a biological cause not psychological" is a controversial one and both arguments for and against it can be made. On one hand, there is a growing body of evidence that suggests that many medical conditions have biological causes. For example, conditions such as cancer, heart disease, and diabetes are all believed to be caused by a combination of genetic and environmental factors. These biological causes can be directly tied to specific changes in the body, such as mutations in DNA, hormonal imbalances, or changes in the immune system.On the other hand, there is evidence to suggest that psychological factors can play a role in the development of certain medical conditions. For example, stress has been linked to a range of physical and mental health problems, including heart disease, anxiety, and depression. Additionally, lifestyle factors, such as diet, exercise, and sleep patterns, can have a significant impact on a person's physical and mental health.It is important to note that the relationship between biological and psychological factors is often complex and multi-layered and that different conditions may have different causes and contributing factors. Some conditions may have primarily biological causes, while others may have a stronger psychological component. And in many cases, a combination of biological and psychological factors may interact to cause or contribute to a medical condition.In conclusion, while it is true that many medical conditions have a biological cause, it is not accurate to say that every disease has a biological cause and not a psychological one. Both biological and psychological factors can play a role in the development of various medical conditions, and it is important to consider both when trying to understand and treat these conditions.
3. Which salt concentration would you expect an obligate, extreme halophile to grow the best in?
Extreme halophiles (growing best in media containing 2.5-5.2 M salt), borderline extreme halophiles (growing best in media containing 1.5-4.0 M salt), moderate halophiles (growing best in media containing 0.5-2.5 M salt), and halotolerant microorganisms that do not show an absolute requirement for salt for growth but grow well up to frequently very high salt concentrations are the categories of halophilic organisms that are distinguished by the accepted theory [6]. (considered extremely halotolerant if the growth range extends above 2.5 M salt).
what is halophile ?The word "halophile" comes from the Greek for "salt-loving," and refers to an extremeophile that can survive in environments with a lot of salt. While the majority of halophiles fall within the category Archaea, there are also several bacterial and eukaryotic species that are halophiles, like the alga Dunaliella salina and the fungus Wallemia ichthyophaga.
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What happens at a divergent plate boundary when two oceanic plates are involved? Give
detail.
