The process of translation initiation is different in eukaryotes and prokaryotes as There is no binding sequence for ribosomes in mRNAs from eukaryotes. Methionine, not N-formylmethionine, is the starting amino acid in eukaryotic organisms.
The mRNA's nucleotide triplets, also known as codons, will be transformed into an amino acid sequence during translation.
Protein synthesis is influenced by translations in both prokaryotes and eukaryotes. The fact that eukaryotic translation and transcription occur simultaneously with prokaryotic translation and transcription is the primary distinction between the two types of translation.
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to determine whether using a food crop as a source of biofuels is environmentally sustainable, one would have to consider all of the following except: group of answer choices the amount of fertilizers used and their impact on aquatic ecosystems. the amount of water and land necessary for the crops. the amount of pesticides used and their impact on biodiversity and groundwater. the corporate profits that would be made.
To determine whether using a food crop as a source of biofuels is environmentally sustainable, one would have to consider all of the following except the amount of water and land necessary for the crops.
Generally speaking, the word "biofuels" refers to liquid fuels and the blending components that are created from biomass materials that are referred to as feedstocks. However, biofuels can also be used for heating homes and generating power in addition to their more common applications in the transportation industry.
To assess whether or not it is environmentally sustainable to use a food crop as a source of biofuels, one would have to take into consideration all of the above, except for the amount of water and land that is required for the crops.
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Riboome
Endoplamic reticulum
Golgi apparatu
Cell wall
Vacuole
Lyoome
Mitochondria
Cell membrane
Cytoplam
Chloroplat
Ribosome: The process of making proteins in a cell takes place at an intercellular structure called a ribosome, which is formed of both RNA and protein. The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that lengthen into long chains and fold to create proteins.
Endoplasmic reticulum:
The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism. The diverse functions of the ER are performed by distinct domains; consisting of tubules, sheets and the nuclear envelope.
Golgi apparatus
Proteins obtained from the ER are further processed and sorted in the Golgi apparatus, or Golgi complex, where they are eventually transported to lysosomes, the plasma membrane, or secretion. As was already mentioned, the Golgi also produces sphingomyelin and glycolipids.
Cell wall
A cell wall is defined as a rigid, external layer that is specifically designed to provide structural support and rigidity.
Vacuole
A membrane-bound cell organelle known as a vacuole. Animal cells typically have tiny vacuoles that aid in the sequestration of waste. Vacuoles in plant cells aid in preserving the equilibrium of water. A single vacuole may occasionally occupy the majority of a plant cell's inner volume.
Lysosome
An organelle of a cell that is membrane-bound and houses digestive enzymes is called a lysosome.
Mitochondria:
The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).
Cell membrane
All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment.
Cytoplasm
The gelatinous liquid that makes up a cell's interior is called cytoplasm. It is made up of different organic compounds, salts, and water.
Chloroplast
Since photosynthesis occurs in chloroplasts, which are organelles found in plant cells that contain chlorophyll, chloroplasts are essential for life on Earth.
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In the nucleus, dna is complexed with proteins to form a fine filamentous material called?
Answer: chromatin
- chromatin is a mixture of DNA and proteins that form chromosomes
if you are to keep the spider in focus as it approaches your nose, are your ciliary muscles going to have to relax or contract?
The ciliary muscles contract when you look at something close to your eyes.
This causes the eye lens' curvature to increase. The eye lens becomes thicker as a result. As a result, the focal length of the eye lens is reduced. This enables us to clearly perceive nearby items.
The ciliary body is responsible for the production of aqueous humor in the eye. The ciliary muscle, which changes the curvature of the lens as your eyes focus on a close object, is also found here. This procedure is known as accommodation.
The ciliary body is divided into two sections: pars plicata and pars plana. The pars plicata reaches 2.5 mm posteriorly to the iris root in adults and comprises about 75 ciliary processes that create aqueous humor.
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Which statement is true about the rock cycle?
A. Once a metamorphic rock is formed, it will always be a metamorphic rock.
B. Heat and pressure that are applied to an igneous rock eventually creates a metamorphic rock.
C. Sedimentation is the primary process that converts a sedimentary rock into a metamorphic rock.
D. When magma pours out on the Earth's surface, it forms metamorphic rock.
Heat and high pressure which are applied to an igneous rock eventually creates a metamorphic rock. Thus, the correct option is B.
What is Rock cycle?Rock cycle are the group of changes which enables the sedimentary, igneous, and metamorphic rocks to transform themselves from one kind of rock to another kind of rock through processes such as melting, cooling, eroding, compacting, and deformation of the rock. Igneous rock is the primary rock which is formed through cooling of the magma from the volcano.
Metamorphic rocks are formed from some other type of rock, however they have been substantially changed from their original igneous, sedimentary, or other earlier metamorphic forms. Metamorphic rocks are formed when the different rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, through some combination of factors to get converted into metamorphic rock.
Therefore, the correct option is B.
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Please help URGENTTTTTTTTTTT
Consider your body as a system. When you are at rest, your body is "burning" food through metabolism, but staying at constant temperature. This means that, for your body, A) U int is increasing and Q > 0 B) Vint is decreasing and Q > 0 C) Uint is increasing and Q < 0D) Uint is decreasing and Q < 0 E) Q = 0 because your body temperature stays the same
Option D is correct. Humans have an integrated control system that regulates body temperature by activating metabolic that change thermal balance.
Controlling blood flow through the skin, regulating sweat production, and regulating shivering are the three mechanisms that have an impact on thermal balance. The amount of blood flowing through the skin can change how much heat is transferred from the core of the body to the surface; increased blood flow warms the skin more, which speeds up the body's heat production's ability to dissipate. If environmental humidity is low enough to allow for full evaporation, the potential for releasing body heat increases with sweat rate; perspiration that simply drops off the body does not aid in cooling.
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after 24 hours of incubation, you observe 200 colonies present on an lb plate onto which you had previously spread 50 μl of a cell suspension. what is the concentration of the cell suspension?
Every microbiology experiment requires incubating the plates to encourage microbial growth.
Bacteria that could be harmful to people are less likely to grow while incubating in aerobic conditions and at temperatures below those of the human body. The likelihood that students will open plates when viewing is decreased by taping the lids on, but if there is still a high risk, there are instructions on how to entirely destroy the plates below.
Before incubation, all infected plates must be taped to prevent accidental opening. Fix this by placing two to four small strands of sticky tape at the dish's opposing sides. Complete sealing could encourage the growth of anaerobic germs or hinder normal growth by limiting oxygen diffusion.
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When exposed to air, the flesh of apples turn brown. arctic apples are a result of introducing an anti-browning gene in the apple’s genetic makeup. which technology was most likely used to produce the anti-browning property of the arctic apple? a. xeno transplantation b. bt gene production c. genetic engineering d. half-life determination
Option c is Correct. The introduction of an anti-browning gene into the apple's genetic makeup produced arctic apples. The arctic apple's ability to resist browning was most likely created via genetic engineering technologies.
Apple flesh becomes brown when it is exposed to air. To avoid browning, Arctic apples are genetically modified (GE). This indicates that biotechnology methods were used to modify the genetic material that controls how the apple tree grows and develops.
These spotless apples with the tiny snowflake sign are called Arctic Apples, and they were developed in labs using cutting-edge genetic engineering methods. When apples are sliced up or damaged, the enzyme polyphenol oxidase usually causes them to turn brown. Arctic apples don't produce as much of this enzyme.
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Answer:
c
Explanation:
Read the ection "Refraction. " What doe thi ection explain that the other DO NOT?
The section on refraction explains the phenomenon of how light changes direction when it passes from one medium to another.
It explains the law of refraction, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the velocities of the light in the two media. It also explains the concept of refractive index, which is a measure of how much the light is bent when it passes from one medium to another.
Additionally, it explains that the angles of the reflection and refraction are not equal, as the light waves refract away from the normal in a case of refraction. Finally, it explains the concept of optical lenses and how they are used to correct refractive errors
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indicate whether the following statement is true or false. most neurons have receptors for every type of neurotransmitter. false true
Most neurons have receptors for each type of neurotransmitter. True. Each neuron has receptors for one or two types of neurotransmitters.
Neurotransmitters are chemical compounds in the body whose job is to convey messages between neurons to target nerve cells in muscles, glands, and other parts of the body. Neurotransmitters have receptors that function to receive stimulus transmission which are located on the postsynaptic membrane.
Neurons are nerve cells that make up the nervous system. Neurons function to receive stimuli from the environment or other nerve cells through dendrites to be sent to other neurons. Each neuron has one or more types of receptors for neurotransmitters which, when transmission occurs, are linked by synapses. Neurons will release neurotransmitters when triggering stimuli so they can carry signals to the target body cells. Then the neurotransmitter travels between cells and attaches to the target cell.
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Explain the following statement:" nothing in science can be absolutely proven no matter how much evidence is collected."
Answer:
The statement "nothing in science can be absolutely proven no matter how much evidence is collected" means that scientific theories and hypotheses can never be proven beyond any doubt, no matter how much evidence is gathered. This is because scientific theories and hypotheses are based on evidence, and as new evidence is discovered, theories and hypotheses can be revised or disproved.
Explanation:
The phrase "nothing in science can be absolutely proven no matter how much evidence is acquired" suggests that scientific ideas and hypotheses can never be confirmed beyond a reasonable doubt, regardless of how much data is gathered.
Explain the following statement:" nothing in science can be absolutely proven no matter how much evidence is collected."The phrase "nothing in science can be totally confirmed no matter how much data is gathered" alludes to the concept that scientific ideas and knowledge are always provisional and open to change in the face of fresh evidence or other explanations. The purpose of science is to accumulate data that supports a certain explanation for a phenomena, but this evidence is constantly susceptible to modification and refining as new information becomes available. As a result, in science, ideas are regarded "supported" or "well-established" based on the available data, but they can never be considered fully proven since new information that challenges or modifies the present interpretation might always emerge.
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What microscope has magnification ability of up to 60,000 times without losing clarity? TEM SEM STM
a grasshopper has which feeding mechanism?
Since the grasshoppers have strong mandibles, they have biting and chewing mechanism of feeding.
Grasshoppers are the insects that belong to the suborder Caelifera. They are herbivorous in nature. Grasshoppers are harmless kind of insects for the living organisms. They are medium-sized insects and their length may vary from 1 cm to 7 cm.
Mandibles are the mouth appendages present in the mouth of insects. They serve several functions like grasping, crushing and cutting of food. This is the reason why they are called jaw-like biting organs. They can be simply considered similar to the jaws which are present in humans.
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what are the three neurons in a reflex arc and in what order are they activated
Afferent neuron, association neuron, & efferent neuron are the three neurons in a reflex arc, and they're activated in that order.
An afferent (sensory) neuron, a association neuron, as well as an efferent (motor) neuron comprise the reflex arc. They are turned on in that order. The afferent neuron first delivers sensory information to a spinal cord. The signal is subsequently sent via the association neuron to the efferent neuron, which then causes the muscle to contract. The neural pathway that is taken by reflex activity is referred to as the reflex arc.
The reflex arc is seen when we inadvertently touch something hot. The receptor is the first to sense a change in temperature. Some critical components are involved in the entire reflex response process. Receptor organs, sensory neurons, nerve center's, related neurons, motor neurons, and effector neurons are all examples.
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in a cross of aabbccddee x aabbccddee, what proportion will have the abcde phenotype?
Proportion of ABCDe phenotype (A-B-C-D-ee genotype) will be 27/512.
Each gene is crossed individually in such a genetic cross, and the chance of the desired child is then calculated by multiplying the probabilities of each gene.
The potential outcome for the parents is impossible. As a Dd/DD hybrid will never exhibit a recessive trait. The child in this question must have 10 alleles of 5 qualities since both parents have them, however there are only 5 alleles present, which is not feasible. Additionally, it is stated as phenotype in the question, although in reality, that refers to genotype. Descriptive phrases like tall dwarf are thought of as phenotypes. The genotype of an allele combination is known.
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what stimulates the release of antidiuretic hormone (adh, or vasopressin)?
A decrease in the blood volume or low blood pressure, which occurs as a result of dehydration or a hemorrhage stimulate the release of anti-diuretic hormone.
Anti-diuretic hormone or the ADH, also known as vasopressin is made by special nerve cells which are found in an area at the base of the brain called the hypothalamus. The neurons transport the hormone down their axons to the posterior pituitary gland where it is released into the bloodstream.
Anti-diuretic hormone basically helps to control the blood pressure by acting on the kidneys and also on the blood vessels. Its most crucial role is to conserve the fluid volume of our body by decreasing the amount of water which is passed out in the urine. A decrease in the blood volume or low blood pressure, which occurs as a result of dehydration or a hemorrhage stimulate its release.
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fennec foxes adapted to have very large ears to help them release heat from their body to stay cool. in which climactic zone would a fennec fox be found?
Fennec foxes are found in the desert regions of the Sahara Desert in Northern Africa.
Firstly, their large ears help to dissipate heat from their bodies and regulate their body temperature in the hot desert environment. This is important as temperatures in the desert can reach extreme levels during the day and drop significantly at night.
Secondly, their large ears also help them to hear their prey, such as insects, small rodents, and reptiles, which they hunt at night.
Thirdly, their large ears also help them to locate mates and communicate with each other in the vast open spaces of the desert.
Overall, the large ears of the fennec fox are a key adaptation to help them survive and thrive in the harsh desert environment.
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A leaflike structure in liverworts that is thin and flat and lies next to the surface is _________.
A leaflike structure in liverworts that is thin and flat and lies next to the surface is Lobe.
Lobe liverworts are so named due to the prominent, rounded lobes that make up the majority of their thallus (body structure). The lobes are thin and flat, arranged in rows on the surface of the thallus, and their edges can be either smooth or toothed. Each lobe has a single, unbranched vein that runs through the center, and this vein provides the lobe with nutrients, moisture and a connection to the gametophyte.
The lobes also contain chloroplasts, which are responsible for photosynthesis. The lobes are adapted to absorb as much light as possible and are usually flat, but they can also be curled up or cupped inwards, which can help them capture more light. These unique structures help liverworts survive in their shady, moist habitats, and their presence makes liverworts a unique and fascinating group of plants.
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Based on the table what class do humans belong too and what class do Cyanobacteria belong to hunt Cyanobacteria and photosynthetic
Humans belong to the Chordata class, Cyanobacteria to the kingdom Monera/Cyanobacteria.
Based on the information in the table, humans belong to the class Chordata, which encompasses all vertebrates and some invertebrates. This class is characterized by having a spinal cord, a skeleton, and a well-developed nervous system. On the other hand, Cyanobacteria are classified in the kingdom Monera or, more specifically, the Cyanobacteria phylum. This group of microorganisms class is known for being photosynthetic and producing oxygen, which is a key factor in the evolution of life on Earth. Cyanobacteria are some of the oldest forms of life on the planet class and can be found in a variety of environments, including freshwater, marine, and terrestrial environments.
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describe how you would use preparative centrifugation to purify mitochondria from a cell homogenate. how could you tell which fraction contained the mitochondria?
The majority of techniques to isolate mitochondria use differential centrifugation, which entails two steps of low speed centrifugation to remove intact cells, cell and tissue debris.
Nuclei from whole cell extracts, followed by a step of high speed centrifugation to concentrate mitochondria and separate them from other organelles. Centrifuge the homogenate: The homogenate should be centrifuged at a low speed (for example, 1,500 x g) after homogenizing the tissue to pellet the mitochondria.
The nucleus, cytoplasm, and plasma membrane will be separated from the mitochondria as a result. A homogenate is the term used to describe the homogenized cell fluid. The organelles must first be prepared as a homogenate before being centrifuged into fractions. The homogenate must be centrifuged several times in differential centrifugation (multistep centrifugation).
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what is the main function of the body’s lymphatic system?
The lymphatic system's primary functions include protecting the body from disease-causing intruders, regulating bodily fluid levels, absorbing digestive tract lipids, and eliminating cellular waste.
The lymphatic system is a network of tissues, veins, and organs that work together to return lymph, a colorless, watery fluid, to your circulatory system (your bloodstream). Every day, around 20 litres of plasma pass through your body's arteries, smaller arteriole blood vessels, and capillaries. After giving nutrients to the body's cells and tissues and collecting waste items, approximately 17 litres are returned to circulation via veins.
The remaining three litres permeate through the capillaries and into the tissues of your body. The lymphatic system gathers extra fluid, now known as lymph, from tissues in your body & transports it until it is eventually returned to your circulation. Many disorders can impact the lymphatic system's channels, glands, and organs. Some occur before birth or even during childhood development. Others emerge as a result of illness or damage.
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which type of ganglion cells respond to color and details cones dorsal cells magnocellular cells parvocellular cells
Retinal ganglion cells respond to color and details cones dorsal cells magnocellular cells parvocellular cells.
Retinal ganglion cells are responsible for the transmission of information that is necessary for recognizing the form and motion of things. There are two primary varieties of retinal ganglion cells in the monkey eye. These cells, known as Type M and Type P cells, are responsible for processing information regarding various stimulus qualities. The magnocellular (M) route has a predilection for stimulation that is low in spatial frequency but high in temporal frequency, and it is extremely sensitive to luminance contrast but not the color.
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5.what factors affect the etiology, risk, or course of altered cellular and tissue adaptation?
Factors like genetic changes, nutritional changes, immune deficiencies etc. affect etiology, risk or the course of altered tissue as well as cellular adaptations.
Cellular or tissue adaptations include the changes or alterations which occur in a cell or tissue in response to the changes in their environment. Cellular adaptations include processes like hypertrophy, atrophy, metaplasia, hyperplasia and dysplasia.
Immunological reactions like autoimmune responses, immune deficiencies, hypersensitivity towards foreign agents etc. are some important factors that affect the etiology, risk and course of altered adaptations. Some other factors include nutritional changes which include excess or deficiency of nutrients and also genetic changes which include mutations or inborn metabolic errors.
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what aspect of experiment 1 does not address whether membrane composition has an effect on na k atpase activity? the activity of the na k atpase:
Option C is Correct. The paragraph claims that both the structure of the component phospholipids and the amount of embedded cholesterol affect two key parameters that are influenced by membrane composition.
Experiment 1 examined the effects of sat vs. unsat and cholesterol vs. no cholesterol on ATPase activity. Knowing this, we are searching for the answer that demonstrates no difference between the two variables they are investigating because the question asks which information would NOT tell us whether membrane comp impacts atpase.
why isn't A? On a direct comparison on the membrane composition of eachwhy not B? discusses the unsat vs. sat component of the 14:0 composition.Why D rather? discusses the role of cholesterol in the structure of membranes.Learn more about composition Visit: brainly.com/question/1194814
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Correct Question:
What aspect of experiment 1 does NOT address whether membrane composition has an effect on Na+K+ ATPase activity? The activity of the Na+K= ATPase:
A. showed less temperature dependence in the 14:1 liposome than the 14:0 liposome
B. was highest in the 14:0 liposome at all temperatures
C. increased with temperature in both the 14:1 liposome and the 14:0 liposome
D. was greater at all temperatures when cholesterol was present
imagine that a colleague asks you to align a conserved metabolic protein-coding gene sequence from a dog to its human homolog. which sequence type - dna or protein - would you expect to exhibit the highest percentage of identities? why?
Protein would show the highest degree of identity because protein is a functional unit of any gene so if nature to conserve the functionality of the gene then protein has to be more degree of identity across the species.
As we all know one amino acid coded by more than one codon (degenerate code) so the change in the DNA sequence of a particular gene may not be visible in the amino acid sequence of the protein. The degree of identity for DNA will be lesser as compared to protein in the evolutionarily conserved gene. Protein coding sequences are DNA sequences which might be transcribed into mRNA and wherein the corresponding mRNA molecules are translated right into a polypeptide chain.
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HELPP PLS!:)
Which of the following conditions would cause a cell to burst?
what are the cells that are indicated by the arrows in the joint fluid image shown on the right? please select the single best answer macrophages bronchial lining cells tumor clumps synovial lining cells
The cells indicated by the arrows in the joint fluid image shown on the right are synovial lining cells. Synovial lining cells are a type of cell that are found in the synovial membrane
It is the thin tissue layer that lines the joint capsule and secretes a lubricating fluid that helps to reduce friction in the joint.
Synovial lining cells are responsible for the production of synovial fluid, which helps to keep the joint lubricated and reduces friction between the joint surfaces. They also produce proteoglycans, which are molecules that bind to water and help maintain the structural integrity of the joint.
Synovial lining cells are composed of two layers: an outer layer of squamous cells and an inner layer of cuboidal cells. The squamous cells produce the synovial fluid, while the cuboidal cells produce the proteoglycans. Synovial lining cells are essential for healthy joint function, as they help to reduce the wear and tear of the joint surfaces. Without them, the joint would be more prone to damage from friction and wear.
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What plate boundary have two plates moving torward eachother
Answer: convergent boundary
Explanation:
Which types of vessels return oxygen-poor blood to the heart?
a. arteries
b. veins
c. capillaries
d. aorta
The superior vena cava (SVC) & inferior vena cava (IVC), the two principal veins that return blood to the heart, carry oxygen-poor blood from the body.
Blood vessels come in three different varieties: Blood is transported from your heart through arteries. Blood is returned to your heart through veins. The fact that your aorta delivers oxygen-rich (oxygenated) blood while your pulmonary artery does not is a significant distinction. In actuality, only one arteries in the body that convey blood deficient in oxygen are those in your lungs. Oxygen-deficient blood form lung capillaries is transported to the heart through pulmonary veins. The body's organs and tissues get oxygen-rich blood through pulmonary veins, which subsequently return it to the heart.
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