the primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain which oft he following common items would best represent the primary structure of a protein?
Answers
Answer:
In a primary structure of protein the smaller subunits amino acids are linked by peptide bonds. The peptide bond is formed when carboxyl or C=O. The long string of bead represents differentamino acids formed in the ribosome
Related Questions
Natural selection results in ______. increased genetic variation increased genetic variation , a population that is better adapted to a future environment a population that is better adapted to a future environment , an increase in the size of a population an increase in the size of a population , a population that is adapted to its current environment a population that is adapted to its current environment Skip to navigation
Answers
Answer:
a population that is adapted to its current environment.
Explanation:
The theory of natural selection explains the development of adaptive features by organisms required to survive in their current environment. The theory supports the survival of the fittest idea whereby those organisms with the most equipped environmentally adaptive features survive. Theae features are also passed from parents to offspring on a bid to facilitate their adaptation to their current environment. This means different organisms develop features required for each of their present environment.
1. Describe the effect on the rate of photosynthesis if the temperature is increased from 10°c to 20°c
Answers
Answer:
As temperature increases the number of collisions increases, therefore the rate of photosynthesis increases.
Explanation:
However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis
which of the following statements about nuclear transport is true?
a) mRNAs and proteins transit the nucleus through different types of nuclear pores.
b) "Nuclear import receptors bind to proteins in the cytosol and bring the proteins to the nuclear pores, where the proteins are released from the nucleus."
c) "Nuclear pores have water-filled pass through in a nonselective fashion."
d) Nuclear pores are made up of many copies of a single protein.
Answers
(c)Tiny, water-soluble molecules can nonselectively move through water-filled passageways in nuclear pores.
Does metoprolol function as a nonselective beta blocker?Abstract.Background:Compared to carvedilol, which is a non-selective beta-blocker with additional alpha(1)-adrenoceptor blockades, metoprolol is a beta(1)-selective beta-adrenergic antagonist.
What type of drug is propranolol?Since propranolol, timolol, or nadolol have virtually little cardioselectivity, they have a higher risk for bronchoprovocation.
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Which of the following muscles does not act in plantar flexion? A) tibialis posterior. B) flexor digitorum longus. C) popliteus
Answers
The muscle that does not act in plantar flexion is the C) popliteus muscle.
Both the A) tibialis posterior muscle and the B) flexor digitorum longus muscle are involved in plantar flexion. They are located in the posterior compartment of the lower leg and play a role in pointing the foot downward, as in standing on tiptoes or pushing off during walking or running. The C) popliteus muscle, however, is not involved in plantar flexion. It is a small muscle located in the posterior knee region. The main function of the popliteus muscle is to unlock the knee joint by internally rotating the tibia (shinbone) during the initial stages of knee flexion. It also assists in stabilizing the knee and controlling rotation of the tibia. In summary, while both the tibialis posterior and flexor digitorum longus muscles contribute to plantar flexion, the popliteus muscle does not act in plantar flexion. Its primary functions are related to knee movement and stabilization.
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microtubles are produced by
Answers
Answer:
They are formed by the polymerization of a dimer of two globular proteins, alpha and beta tubulin into protofilaments that can then associate laterally to form a hollow tube, the microtubule.
What structural features differentiate polysaccharides from polypeptides and nucleic acids?
Answers
Polysaccharides are molecules formed of sugar monomers such as glucose, galactose, fructose, and so on, whereas polypeptides are molecules built of amino acids, and these amino acids are of 20 various sorts.
Nucleic acids are biopolymers, or macromolecules, that are necessary for all known forms of life. Nucleotides are monomers made up of three components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two primary types of nucleic acids (RNA). The polymer is RNA if the sugar is ribose; DNA if the sugar is the ribose derivative deoxyribose.
Nucleic acids are naturally occurring chemical substances that function as the principal information-carrying molecules in organisms and comprise the genetic material.
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The cross section below shows layers of soil. Which two processes produced the layer of dark brown to black soil?
A. melting and solidification of magma
B. erosion and uplifting
C. weathering and the activity of animals and bacteria
D. compaction and cementation
Answers
Weathering and the activity of animals and bacteria.
The cross-section given below shows layers of soil, and the question is asking about which two processes produced the layer of dark brown to black soil.
Layers of soil
Processes involved
The soil has various layers, including the layers of rock, sand, silt, and clay. The question is asking for the processes that produced the layer of dark brown to black soil.
Weathering and the activity of animals and bacteria.
The reason is that the layer of dark brown to black soil is the top layer of the soil, which is known as humus. It is primarily made up of decomposed organic matter such as plants, animals, and microbes. The weathering of rocks, plant debris, and animal remains forms this dark-colored humus layer. The action of animals and bacteria aids in the decomposition of organic matter.
The layer of dark brown to black soil is the top layer of the soil, which is known as humus. It is primarily made up of decomposed organic matter such as plants, animals, and microbes. The weathering of rocks, plant debris, and animal remains forms this dark-colored humus layer. The action of animals and bacteria aids in the decomposition of organic matter.
Therefore, the answer to the given question is C. Weathering and the activity of animals and bacteria.
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Question 3.
Why dose a throat infection cause your voice to produce lower pitched sounds biology
Answers
Answer:
With a cold comes inflammation of the structures around the vocal cords. With the inflammation comes swelling of those structures. Thicker vocal cords vibrate more slowly and give a lower pitch.
Which hair is Is constitute about two third of the hair of women , one tenth of the hair of men, and all of the hair of children?
Answers
Answer:
vellus
Explanation:
The villus hair is also called as the peach fuzz refers to a fine thin and light-colored hair. It covers the majority of body parts such as face, stomach, legs and arms. This hair tends to be very short and has a length of 2mm.PLEASE ANSWER ASAP
Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study?
Question 6 options:
If the cage for the chickens is larger, they will produce more eggs.
If more eggs are produced by the chickens, they will lose more weight.
If there is more protein in the feed, then more eggs are produced.
If chickens receive more hours of light, then they will produce more eggs.
Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study
If the cage for the chickens is larger, they will produce more eggs.
If more eggs are produced by the chickens, they will lose more weight.
If there is more protein in the feed, then more eggs are produced.
If chickens receive more hours of light, then they will produce more eggs.
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
What is the independent variable in this experiment?
Question 7 options:
amount of fertilizer
number of algal cells
hours of daylight
amount of water
Question 8 (2 points)
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
What is the dependent variable in this experiment?
Question 8 options:
size of beakers
number of algal cells
amount of fertilizer
hours of daylight
Question 9 (2 points)
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
Which of the following is the control group for the experiment?
Question 9 options:
Beaker D
Beaker C
Beaker E
Beaker A
Beaker B
Question 10 (2 points)
To focus a specimen, it is best to start with which objective:
Question 10 options:
High power
Low power
Scanning
Ocular
On the image, which number represents the coarse adjustment knob?
1
2
5
10
What important feature is missing from this line graph representing sea level change between 1870 And 1990
X axis label
a title
Y axis label
appropriately spaced scales
Answers
Answer:
I know that for 6 is A) for 7) I'm between A) and C) for 8 it's B) 9 I don't understand, but the control group is whatever is kept the same and you're not testing on it and the rest I don't know
true or false: depolarization of a neuron at the axon terminals opens voltage-gated calcium channels that in turn will signal the release of neurotransmitters (via vesicles) into the synapse.
Answers
It is true to say that depolarization of a neuron at the axon terminals opens voltage-gated calcium channels that in turn will signal the release of neurotransmitters (via vesicles) into the synapse.
In science, depolarization or hypopolarization is a change inside a cell, during which the cell goes through a change in electric charge dissemination, bringing about more positive charge inside the cell contrasted with the outside. Depolarization is vital for the capability of numerous cells, correspondence among cells, and the general physiology of an organic entity.
Activity expected in a neuron, showing depolarization, in which the cell's inner charge turns out to be more positive (more sure), and repolarization, where the inner charge gets back to a more regrettable worth.
Most cells in higher organic entities keep an inner climate that is adversely charged comparative with the cell's outside. This distinction in control is known as the cell's film potential. During the time spent depolarization, the negative interior charge of the phone briefly turns out to be more certain (more positive).
This shift from a negative to a more positive membrane happens during a few cycles, including an activity potential. During an activity potential, the depolarization is enormous to such an extent that the expected contrast across the phone film momentarily switches extremity, with within the phone turning out to be emphatically charged.
Hence,given statement is true.
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A study was conducted in a particular preschool to investigate whether there is a link between breastfecding and a child's level of intellectual functioning, 20 breastfed and 40 not breastfed (non-breastfed) four year old children were involved. Each child is allocated a unique ID number between 1 and 60 (inclusive). Each child had to answer a few basic questions. To motivate them to answer all questions, the investigator offered Whittaker's Miraka Kirīmi (chocolate) bar. (a) For each of the following scenarios, identify the named distribution that can be used to model X, including its parameter(s). i. Each day a randomly chosen child is given a chocolate bar. All 60 children are in the draw every day. Let X be the number of days before the child with ID number 1 is chosen twice. Note that the day on which the child with ID number 1 is chosen for the second time is not counted. [2 marks] ii. Five children are randomly chosen to sit around one table and do their test. Let X be the number of non-breastfed children chosen. [2 marks] (b) Refer to your choice of named distribution in 2(a)ii above and answer the following questions. i. Find the expected value of X,E(X), and the variance of X,Var(X). [2 marks] ii. What is the probability that at least one child in the group of five children chosen to do the test is breastfed? [2 marks]
Answers
The variance of X, Var(X), for the hypergeometric distribution, the formula is: 1.67
How to calculate the valueThe hypergeometric distribution has three parameters:central idea
N: the total population size (60 children in this case)
K: the number of success states in the population (40 non-breastfed children in this case)
n: the number of draws (5 children chosen in this case)
To calculate the variance of X, Var(X), for the hypergeometric distribution, the formula is:
Var(X) = n * (K / N) * ((N - K) / N) * ((N - n) / (N - 1))
Using the same values as before, we have:
Var(X) = 5 * (40 / 60) * ((60 - 40) / 60) * ((60 - 5) / (60 - 1))
= 1.67
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I was in my AP Biology class today...and we were talking about organelles in animals.....and we got onto the topic of hamsters. WHY DO THEY EXPLODE!? What causes that!!!!!????!??!?!?
Answers
Answer:
its caused by an undetected tumor which can become too big for its body to handle
a scare plus b scare
Answers
Answer:
C squared
Explanation:
Answer:
=c square
Explanation:
Image result for a square + b square
a2 + b2 formula is known as the sum of squares formula it is read as a square plus b square. Its expansion is expressed as a2 + b2
Which is a biological stressor, impacting some coral reefs?
Answers
Sedimentation has been identified as a primary stressor for the existence and recovery of coral species and their habitats. Sediment deposited onto reefs can smother corals and interfere with their ability to feed, grow, and reproduce.
could be pretty much a thung
wht are the causes, risk and treatment for food poisoning
Answers
Answer:
Causes: Improper food handling, Bad Hygiene, Undercooked food.
Risk: Salmonella, weaken's immune system, and possibly end in hospital.
Treatment: Hydration, & medication.
What force is present at a divergent boundary?
A. Shearing
B. Torsion
C. Tension
D. Compression
Answers
Tension force is present at a divergent boundary. Therefore, option (C) is correct.
What do you mean by tension force?Tension is defined as the force transmitted through a rope, string or wire when pulled by forces acting from opposite sides. The tension force is directed over the length of the wire and pulls energy equally on the bodies at the ends.
Tension formula is articulated as. T=mg+ma. Where, T= tension (N or kg-m/s2) g = acceleration due to gravity (9.8 m/s2)
All physical objects that are in contact can exert forces on each other. We give these contact forces different names based on the types of objects in contact. If one of the objects exerting the force happens to be a rope, string, chain, or cable we call the force tension.
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An experiment is being carried out to observe the melting of ice. Heat energy is being supplied at a constant rate. The temperature of the ice is recorded at different intervals of time. After some time, the observed values of temperature become constant even though heat energy is supplied to the ice. Explain what is happening in this situation.
Answers
Answer:
thoughout the experiments the ice starts showing sings of melting
Explanation:
the production of apple on a tree is the result of what energy conversion
Answers
Answer:
The tree absorbs light energy from sunlight, converting the light energy into chemical potential energy stored in chemical bonds. The tree uses this energy to build leaves and branches and fruit. When the apple hits the ground, kinetic energy is transformed into heat energy.
Explanation:
Why does the bell jar not represent the human breathing system well
Answers
The bell jar does not represent the human breathing system well because it lacks several essential features and functions. Here are some reasons:
1. Oxygen intake: The bell jar does not allow for the intake of oxygen. In the human breathing system, oxygen enters the body through the nose or mouth, passes through the pharynx and larynx, and reaches the lungs for gas exchange.
2. Inhalation and exhalation: The bell jar does not demonstrate the process of inhalation and exhalation. In the human breathing system, inhalation involves the diaphragm and intercostal muscles contracting to expand the chest cavity, allowing air to enter the lungs. Exhalation occurs when these muscles relax, causing the chest cavity to decrease in size and expelling air.
3. Gas exchange: The bell jar does not illustrate the exchange of gases that takes place in the alveoli of the lungs. In the human breathing system, oxygen from the inhaled air diffuses into the bloodstream through the thin walls of the alveoli, while carbon dioxide, a waste product, moves from the bloodstream into the alveoli to be exhaled.
4. Waste removal: The bell jar does not account for the removal of waste gases. In the human breathing system, carbon dioxide is eliminated from the body through exhalation, while the bell jar lacks this mechanism.
In summary, the bell jar does not accurately represent the complexity and functionality of the human breathing system. It overlooks vital processes such as oxygen intake, inhalation and exhalation, gas exchange, and waste removal. Therefore, it falls short in providing a comprehensive understanding of the human respiratory system.
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When Charles Darwin published his radical theory of evolution by natural selection in 1859 it was attacked by many early biologists as seriously flawed. Today his ideas are accepted as correct by biologists. From what we know of how science works, and the scientific method, why might opposition to Darwin's ideas disappear over the last 160 years?
Answers
Answer:
Empirical evidence of his ideas
Explanation:
The scientific process involves the formulation of hypotheses that enable to answer questions about the real world, and then to carry out experiments or observations that are used to confirm (or reject) such predictions. In the last 160 years, Darwin's ideas on 'descent with modification' have constantly been subjected to experimental assessment, and obtained data confirmed his observations. For example, molecular evidence based on the DNA and RNA -which constitute the genetic material of all living organisms- has shown the conservation of this process. In consequence, molecular evidence has been used to construct 'evolutionary' phylogenetic trees from DNA/RNA sequences. Moreover, evidence in genetics has shown the critical role played by mutations in the mechanism of natural selection proposed by Darwin, thus also confirming his theories. These are only some examples, and supporting evidence confirming Darwin's ideas has been collected from different research fields ranging from ecology to molecular biology.
The amount of water circulating around the planet is always
A. fixed (staying the same.)
B. decreasing.
C. increasing.
Answers
Answer:
The answer would be fixed.
Explanation:
According to the law of conservation of energy, energy cannot be created or destroyed. I can safely assume it is the same with the flow of water on the Earth’s surface. Also, according to what is known about the water cycle, it is impossible for water to simply disappear from the face of the Earth.
Let me know if I am correct! :>
Answer:
A. fixed (staying the same.)
Explanation:
The amount of water circulating around the planet is always fixed (staying the same.)
structure/function: list all the adaptations that increase surface area in animal systems and explain why increased surface area improves the function of that system.(list 7)
Answers
Increased surface area improves the function of these systems because it allows for more efficient and effective exchange of materials (such as nutrients, oxygen, and waste) with the environment.
There are several adaptations in animal systems that increase surface area, including:
1. Folds and villi in the lining of the small intestine, which increase the surface area available for nutrient absorption.
2. Gills in fish and other aquatic animals, which increase the surface area available for oxygen exchange.
3. Feathers in birds, which increase the surface area of the wings and help with flight.
4. Scales and fins in fish, which increase the surface area of the body and aid in movement through water.
5. Microvilli in the lining of the kidney tubules, which increase the surface area available for waste removal and water reabsorption.
6. Compound eyes in insects, which consist of many small lenses that increase the surface area available for visual perception.
7. Branched respiratory tubes in insects, which increase the surface area available for gas exchange.
This is because more surface area means more opportunities for molecules to come into contact with the system and be exchanged. For example, the folds and villi in the small intestine increase the surface area available for nutrient absorption, which allows for more nutrients to be absorbed into the body. Similarly, the gills in fish increase the surface area available for oxygen exchange, which allows for more oxygen to be taken in from the water. Overall, adaptations that increase surface area help animals to better adapt to their environment and perform essential functions for survival.
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Match the given symbol or molecular formula to the term that best describes it.
SO2
K
Cl2
C6H6
element
arrowRight
organic compound
arrowRight
inorganic elemental molecule
arrowRight
inorganic compound
Answers
The given symbols or molecular formula can be matched with the term that best describes it as follows: SO2 - inorganic elemental molecule KCl - inorganic compoundC6H6 - organic compound.
Inorganic elemental molecules are elements that are composed of the same type of atoms. They are often found in nature as gases. SO2 is a gaseous compound that is composed of sulfur and oxygen. It is an inorganic elemental molecule because it contains only two types of atoms.
Inorganic compounds are substances that do not contain carbon and hydrogen bonds. KCl is an inorganic compound that is composed of potassium and chlorine. It is an inorganic compound because it does not contain any carbon or hydrogen.
Organic compounds are substances that contain carbon and hydrogen bonds. C6H6 is an organic compound that is composed of six carbon atoms and six hydrogen atoms. It is an organic compound because it contains carbon and hydrogen.
In conclusion, SO2 is an inorganic elemental molecule, KCl is an inorganic compound, and C6H6 is an organic compound.
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The consensus is that the coelacanths and lungfishes (Sarcopterygii) represent an evolutionary link between ray-finned fishes and tetrapods. What is the major feature in the Sarcopterygii that supports this hypothesis?
Answers
Answer:
Choana, paired fins with a fleshy base over a bony skeleton, persisting notochord, 2 dorsal fins and nares.
Explanation:
Sarcopterygii also known as lobe-finned fishes which usually possess a choana, paired fins with a fleshy base over a bony skeleton, persisting notochord, 2 dorsal fins and nares are present internally. The lungfishes are considered the closest living relatives of tetrapods because of the presence of some common features. The African lungfish has epithelial crypts located at the base of the lamellae of the olfactory epithelium that express markers of the vomeronasal receptors in tetrapods.
Which of the following are evidence for the Theory of Plate Tectonics (mark all possible answers).
continents fit together like a jigsaw puzzle
similar fossils on different continents
similar rock composition on different continents
measurements using GPS
Answers
All of those choices lead to the theory of plate tectonics but the last one doesn’t because they didn’t use a GPS.
Hope this helps :)
4. What are organisms that produce their own food called?
Answers
Answer:
Autotroph
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
Answer:
it is an autotroph
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide or other chemicals.
Natural Selection results in -
Group of answer choices
all harmful traits being eliminated
long-lasting adaptations
a perfectly adapted group of organisms
a population that is adapted to an environement
Answers
Answer:
a population that is adapted to an environment
a hormone is released by diffusion, travels through the blood bound to carrier proteins, and binds to cytosolic receptors. this hormone must be .
Answers
A hormone is released by diffusion, travels through the blood bound to carrier proteins, and binds to cytosolic receptors a steroid hormone.
What is the function of hormone?Estrogen, the body's chemical messengers, connect with organs and the circulatory. Hormones have an impact on a number of bodily processes, including birth, mood, sexual function, metabolism (the mechanism within which your body turns food into energy), learning & success, and metabolism.
How do hormones function?Hormone-producing endocrine glands release their substances straight into the bloodstream. You should think of hormonal as chemical messengers. The proteins enter the stream and travel to the neurons, where proteins interact with only a few cells to change or impact them in a specific way.
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What is a transgenic organism?
A an organism that is an exact clone
B an organism that has no dna
C and organism that has a mixture of dna
D an organism with dna from another organism
Answers
Answer:
Transgenic organisms is an organism with dna from another organism.
A transgenic organism is an organism that contains DNA from another organism. Option D is correct.
Transgenic alludes to a life form or cell whose genome has been changed by the presentation of at least one unfamiliar DNA successions from one more animal groups by counterfeit means. For research purposes, transgenic organisms are created in the laboratory.
A transgenic organism, also known as a genetically modified organism, is one that has been altered by recombinant DNA technology. Recombinant DNA technology involves either combining DNA from various genomes or inserting foreign DNA into a genome.
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