A) Describe how allosteric enzymes are regulated by activator and inhibitor regulatory molecules.
B) Explain how ATP and ADP act as allosteric regulators of enzymes that are responsible for ATP production, and how that is an example of feedback inhibition.
C) What is feedback inhibition? How is the ATP generating pathway discussed in part B an example of feedback inhibition?
Answers
Answer:
A) Activator molecules regulate Allosteric enzymes by binding to a regulatory site and stabilizes the area that has active sites that are functional. Inhibitor regulatory molecules stabilize the Allosteric enzymes by binding to the part of the enzyme that is inactive.
B) ATP is a renewable resource that can be regenerated by the addition of phosphate to ADP. With these two organic compounds relying on each other they act like allosteric regulators for enzymes that make the production of ATP. The molecules that bind cellular respiration enzymes act as signals, giving the enzyme information about the cell's energy state. AMP and ADP bind to the allosteric site as to facilitate the formation of the R state by inducing structural changes in the enzyme. An example of feedback inhibition is an anabolic pathway. Anabolic pathways are those that require energy to synthesize large molecules.
C) Feedback inhibition is a method of metabolic control in which the end product of a metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway. The reason an ATP-generating pathway formed by the ATP itself is because of feedback inhibition. Some cells use this five-step pathway to synthesize the amino acid isoleucine from threonine, another amino acid. As isoleucine accumulates, it slows down its own synthesis by allosterically inhibiting the enzyme for the first step of the pathway. Feedback inhibition thereby prevents the cell from making more isoleucine than is necessary, and thus wasting chemical resources.
Explanation: My teacher gave me a 100% on this short writing
Answer:
answering so the other person can get brainliest. pls dont report but idc if u downvote, i just think they deserve brainliest! heres my adaptation of their writing: (fixing minor mistakes)
A) Activator molecules regulate Allosteric enzymes by binding to a regulatory site and stabilizes the area that has functional active sites. Inhibitor regulatory molecules stabilize the Allosteric enzymes by binding to the part of the enzyme that is inactive.
B) ATP is a renewable resource that can be regenerated by the addition of phosphate to ADP. With these two organic compounds relying on each other they act like allosteric regulators for enzymes that make the production of ATP. The molecules that bind cellular respiration enzymes act as signals, giving the enzyme information about the cell's energy state. AMP and ADP bind to the allosteric site to facilitate the formation of the R state by inducing structural changes in the enzyme. An example of feedback inhibition is an anabolic pathway. Anabolic pathways are those that require energy to synthesize large molecules.
C) Feedback inhibition is a method of metabolic control in which the end product of a metabolic pathway acts as an inhibitor of an enzyme within that pathway. The reason an ATP-generating pathway is formed by the ATP itself is because of feedback inhibition. Some cells use this five-step pathway to synthesize the amino acid isoleucine from threonine, another amino acid. As isoleucine accumulates, it slows down its synthesis by allosterically inhibiting the enzyme for the first step of the pathway. Feedback inhibition thereby prevents the cell from making more isoleucine than is necessary and thus wasting chemical resources.
Explanation:
Related Questions
At which part of the cell are electrical signals transmitted between nerve cells?
soma
axon
myelin sheath
dendrite
Answers
Dendrite is regarded as the part of the cell in which electrical signals are
transmitted between nerve cells.
Dendrites receive signals or communication from other cells and help to
transport the electrochemical charge from other neurons to the cell body or
axons which conduct them to the central nervous system for processing.
Dendrites have also been found to release neurotransmitters which makes
their study more complex and diverse.
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As stated in the thinking critically about organizational support and creativity section of the textbook, middle managers can strengthen the extent to which employees perceive that they are valued and cared for by the organization, by strengthening which two factors below?
a. employee’s identification with their work unit and their identification with the organization’s mission
b. employee’s expectation of career success and employee’s buy in with the organizations vision
c. emotional intelligence and cognitive aptitude
d. employees’ identification with their work unit and their expectations of career success
Answers
According to the thinking critically about organizational support and creativity section of the textbook, middle managers can strengthen the extent to which employees perceive that they are valued and cared for by the organization, by strengthening employees’ identification with their work unit and their identification with the organization’s mission (A).
What is organizational support?Organizational support refers to the extent to which an employee feels that the organization values their contributions and cares about their well-being. It is critical to keep employees motivated and engaged with their work as an essential element in organizational success. The strength of an employee's commitment and engagement to the organization depends on the level of support they receive.
What is creativity?Creativity is the ability to think outside the box and generate novel and innovative ideas and solutions. Organizations value employees who can produce innovative ideas that enhance the company's products or services, establish new market trends, and generate new revenue streams.
What is the role of middle managers in organizational support and creativity?Middle managers are responsible for driving organizational support and creativity in the organization. They play a crucial role in enhancing employees' identification with their work unit and the organization's mission. The greater the employee's identification with the work unit and the organization's mission, the higher their level of organizational support and creativity.
In conclusion, the correct answer is (a) employee’s identification with their work unit and their identification with the organization’s mission.
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answer asap!! please for question 10 which is the right answer
Answers
When living things eat other organisms there is a transfer of energy. Which statement BEST describes this transfer
Answers
Answer:
is this a multiple choice question? if so, what are the choices
Explanation:
Billions of people experience water insecurity annually, resulting in a substantial morbidity and mortality burden. Describe the Bradley-Feachem classification of water-related infections, and for each category: (a) describe the exposure pathways of at least two illnesses, and (b) the types of intervention strategies needed to break the transmission cycle (i.e., disrupt these exposure pathways). In addition, comment on any shortcomings of this disease framework in classifying water-associated illnesses.
Answers
The Bradley-Feachem classification categorizes water-related b into groups based on water sources. It has limitations in addressing emerging pathogens, complex transmission routes, socio-economic factors, and the impact of climate change.
The Bradley-Feachem classification of water-related infections categorizes illnesses into the following groups based on their association with water sources.
Category 1: Water-Borne Diseases
(a) Exposure pathways: Cholera can be contracted by consuming water or food contaminated with Vibrio cholerae bacteria. Cryptosporidiosis can occur by ingesting water contaminated with Cryptosporidium parasites, commonly found in untreated or inadequately treated water.
(b) Intervention strategies: Ensuring access to safe drinking water through improved water treatment, disinfection, and proper storage can prevent cholera transmission. Implementing effective water filtration systems and promoting safe water practices can help prevent Cryptosporidium contamination.
Category 2: Water-Vector Diseases
(a) Exposure pathways: Malaria can be transmitted through the bites of infected female Anopheles mosquitoes that breed in stagnant water. Dengue fever can be spread by Aedes mosquitoes breeding in water-filled containers.
(b) Intervention strategies: Implementing mosquito control measures like eliminating breeding sites, using insecticide-treated nets, and indoor residual spraying can help break the transmission cycle. Additionally, raising awareness about proper waste disposal and community involvement in vector control can be effective.
Shortcomings of this framework include the limited focus on emerging waterborne pathogens and the complex interactions between different categories. It may not adequately address illnesses caused by multiple transmission routes or those influenced by socioeconomic factors. Additionally, the framework does not fully account for the impact of climate change, which can alter the distribution and prevalence of water-related infections.
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Was it easy finding food in the last generation
Answers
It is generally easier to find food in the current generation compared to the last generation.
In the last generation, food accessibility was more limited due to factors such as fewer supermarkets, less efficient transportation and distribution systems, and less advanced food preservation techniques. Nowadays, with the growth of technology and infrastructure, it has become easier to access a wider variety of food from all around the world. Additionally, advancements in agriculture and food production have increased the availability of food.
While there might have been challenges in finding food in the last generation, the current generation benefits from improved technology and infrastructure, making it easier to access and find food.
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Two models of molecules are shown. Two models of molecules. One on left is made of one carbon and one oxygen atom. One on right is made of one carbon and two oxygen atoms. What is true about the molecules shown in the models? A. They are molecules of the same substance. B. They are molecules of two substances with the same properties. C. They are molecules that join together. D. They are molecules containing the same kind of atoms.
Answers
Answer/Explanation:
CO and CO2 are both carbon poisoning. They both are odorless, colorless, and potentially deadly. But the chemical difference(extra oxygen molecule) causes it to be a different substance. CO is carbon monoxide while CO2 is carbon dioxide. CO2 is common because it is what we exhale after a breath, it is used to keep plants alive. On the other hand CO is caused by gas emissions and lack of oxygen. They may sound the same but they are just two different molecules containing the same types of atoms.
Answer:
co
Explanation:
Things too small to be seen with other microscopes may be viewed with a ______
a. compound light microscope
c. brightfield microscope
b. simple microscope
d. electron microscope
Answers
Answer:
B.simple microscope
Explanation:
hope it's help
d. electron microscope
hope that helped!
this answer i need pls ill mark brainliest
Answers
All - growth, exchange of gases, excretion, reproduction, and death (option d).
All living organisms undergo various life processes to maintain their existence. Let's analyze each option to determine which life processes are carried out by an organism's cells:
A. Only growth and exchange of gases: While cells are involved in growth and exchange of gases, they also participate in other life processes. This option is incomplete.
B. Only growth, exchange of gases, and reproduction: Cells play a crucial role in reproduction as they are responsible for the production of gametes and the process of cell division. However, there are additional life processes that cells also undertake.
C. Only growth, exchange of gases, excretion, and reproduction: This option includes excretion in addition to growth, exchange of gases, and reproduction. Cells participate in excretion by eliminating waste materials. However, there is one more life process that cells experience.
D. All - growth, exchange of gases, excretion, reproduction, and death: This option encompasses all the mentioned life processes. Cells are involved in growth as they undergo cell division and increase in number. They exchange gases through processes like respiration. Cells excrete waste products. They participate in reproduction through the formation of gametes and cell division. Lastly, cells also experience death as they have a limited lifespan.
Therefore, the correct answer is D. All - growth, exchange of gases, excretion, reproduction, and death.
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When a single recombination event occurs between a normal chromosome and a chromosome with a paracentric inversion and within the inverted region, what are the expected meiotic products
Answers
When a single recombination event occurs between a normal chromosome and a chromosome with a paracentric inversion within the inverted region, the expected meiotic products are one normal chromosome and one recombinant chromosome.
In a paracentric inversion, the inverted region does not include the centromere of the chromosome. During meiosis, when a recombination event takes place within the inverted region, it can result in a crossover between the normal chromosome and the inverted chromosome. This crossover leads to the formation of two types of recombinant chromosomes .One recombinant chromosome will contain the normal sequence of genes, while the other recombinant chromosome will have a rearranged order of genes within the inverted region. These recombinant chromosomes will be different from both the normal chromosome and the chromosome with the paracentric inversion. The non-recombinant chromosome with the paracentric inversion and the normal chromosome without any rearrangement are also expected to be produced during meiosis.
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Can someone pls check my answers?? All 5 questions are attached, I got some right but some wrong
Answers
The position of the Earth in the solar system and more regional effects, such as carbon dioxide levels, all play a role in the causes of ice ages. Thus, option A is correct.
What are factor that involve in ice age on earth?When the orbital cycle turns back, these feedbacks—involving the spread of ice and the emission of greenhouse gases—work in reverse to warm the Earth once more.
A prolonged period of cooling of the Earth's surface and atmosphere is known as an ice age, which is marked by the development or presence of polar and continental ice sheets as well as alpine glaciers.
Flooding has increased along the U.S. coastline as a result of the warming, rising, and acidifying of the seas.
Therefore, The Earth is currently facing an ice age.
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which occurs during both DNA replication and protein production
A RNA leaves the nucleus
B DNA leaves the nucleus
C RNA unzips
D DNA unzips
Answers
Answer:
Option A is your answer ☺️☺️☺️
Answer: A. RNA leaves the Nucleus.
Explanation: During both DNA replication and protein production, RNA leaves the nucleus. DNA does not leave the nucleus during these processes.
Does a bacterial cell have DNA stored in the nucleus?
Answers
Answer:
no
Explanation:
the DNA floats around freely inside the cell in a loosely coiled circular shape in the nucleoid rather then the nucleus
In a population of 100 individuals, 16 exhibit a recessive trait. Find genotypic frequencies at homozygous (AA), heterozygous (Aa) and homozygous small a (aa)
Answers
Homozygous dominant, heterozygous, and homozygous recessive genotypic frequencies are 36%, 48%, and 16%, respectively:
Here: homozygous dominant genotype, AA
Aa for the genotype of heterozygotes
Homozygous recessive genotype for aa, 16 out of the 100 people in the population have the recessive trait, hence there are 16 in the population. Thus, the genotype frequency for aa is 16/100, or 0.16.
The frequency of the A allele plus the frequency of the an allele must equal one because there are only two potential alleles at this locus (A and a). This fact, along with the frequency of the aa genotype, can be used to determine how common the A allele and the aa genotype are:
frequency of aa genotype = q² = 0.16,
frequency of A allele = p = 1 - q
frequency of Aa genotype = 2pq,
q = 0.16 = 0.4
p = 1 - q = 0.6
frequency of Aa genotype = 2pq = 2(0.6)(0.4) = 0.48
frequency of AA genotype = p² = (0.6)² = 0.36
Therefore, the genotypic frequencies are:
AA: 0.36 or 36%
Aa: 0.48 or 48%
aa: 0.16 or 16%
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please helpppp
Prompt: A food web of an ecological community in Pennsylvania is shown in the picture. After becoming infected with a parasite, the population of grasshoppers in this area is drastically reduced. Would this have any effect on the population of frogs? How do you know?
be sure to include
Claim: What is your answer to the question? Restate the question wh
your answer.
Evidence: Use details from the text, picture to support your response
Reasoning: Explain how does the evidence support your claim?
Answers
Claim: The reduction in the population of grasshoppers due to a parasite would have an effect on the population of frogs.
What is population?Population is a term used to refer to the total number of people living in a particular area at a given time. It can refer to the number of people in a particular city, state, country, or even the entire world. Population data is typically collected by government entities and used to inform decisions about resource allocation and other public policy matters. Population size can be affected by a variety of factors, such as natural disasters, immigration, and economic factors.
Evidence: In the food web, grasshoppers are a primary food source for frogs, suggesting that a decrease in the population of grasshoppers will result in a decrease in the population of frogs.
Reasoning: The decrease in the population of grasshoppers will result in fewer food sources for frogs, leading to a decrease in the population of frogs.
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1
2
3
6
8
Which is developed during the process of technological design?
solution
experiment
conclusion
summary
Answers
During the technological design process, you would develop a solution
Silk is a natural protcin fibre material of high tensile strength. There are two kinds of silk, produced by spiders or silkworms, which differ in their characteristics. Average diameter of fibres prod
Answers
The average diameter of silk fibers produced by spiders is around 1.0 to 4.0 micrometers, while the average diameter of silk fibers produced by silkworms is around 10.0 to 25.0 micrometers.
Spiders produce silk fibers that are generally thinner and more lightweight compared to silkworm silk fibers. Spider silk is known for its exceptional tensile strength, elasticity, and toughness. The diameter of spider silk can vary depending on the spider species and the specific type of silk produced (e.g., dragline silk, capture silk). On the other hand, silkworm silk, also known as bombyx silk, is produced by the domesticated silkworm species Bombyx mori. Silkworm silk fibers are relatively thicker compared to spider silk but still possess high tensile strength. Silkworm silk is primarily used for the production of silk fabric and is renowned for its lustrous appearance and smooth texture.
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60 minutes remaining
Question 13 The most abundant photoreceptors that detect dim light are Cones.
A True
B False
Question 14 Muscular tissue that adjusts the shape of the pupil to regulate how much light enters the eye is IRIS.
A True
B False Question
15 Opsins are visual pigments derived from Vitamin D.
A True
B False
Answers
Answer:
Question 13:
B. False
The most abundant photoreceptors that detect dim light are Rods, not Cones. Rods are highly sensitive to low light conditions and are responsible for vision in dim light and peripheral vision. Cones, on the other hand, are responsible for color vision and high visual acuity but are less sensitive to low light conditions.
Question 14:
A. True
The iris is the muscular tissue in the eye that adjusts the size of the pupil, controlling the amount of light entering the eye. It contracts or expands to regulate the size of the pupil in response to changing light conditions.
Question 15:
B. False
Opsins are visual pigments found in photoreceptor cells, specifically in the retina of the eye. They are responsible for capturing light and initiating the process of vision. Opsins are not derived from Vitamin D. Vitamin D is a separate compound involved in various physiological processes in the body, including calcium absorption and bone health.
Explanation:
What is another name for the tRNA?
Answers
Answer:
rRNA and mRNA
Explanation:
What is included in the geosphere
Answers
Answer:
Quite literally Everything
Answer:
The things included in the Earth's Geosphere are:
The Crust
The Mantle
The Inner Core
The Outer Core
Explanation:
If double stranded DNA has 14% (guanine), what percent A (adenine), T (thymine) and C (cytosine) would you expect?
Answers
Answer:
If in a double stranded DNA the percentage of guanine is 14%, the percentage of the other bases of the molecule will be 14% for cytosine, 36% for adenine and 36% for thymine.
Explanation:
In the DNA molecule resides all the information of the genome of a living being, according to a specific sequence of nitrogenous bases adenine, guanine, cytosine and thymine. These bases are complemented -purine with pyrimidine- following the rule of base complementarity between one chain and another.
Knowing the percentage that exists of a base, the percentage or proportion of the other nitrogenous bases in a DNA molecule can be determined, approximately, following the rule of Chargaff's base pair.
Chargaff established in his observations that the DNA of a cell has a purine:pyrimidine ratio of 1:1, so there should be an equivalent amount of guanine for cytosin and a similar amount of thymine for adenine, since they are complementary bases.
According to the law of the base pair, if there is 14% in a DNA strand, there will be a 14% in the molecule:
Adenine 36%. Thymine 36%. Cytosine 14%. Guanine 14%. Total ..... 100%This rule applies to both chains, since the percentage of bases in a single chain will depend on the specific sequence of bases it has.
Energy to run a maximal 400-meter race (i.e., 50 to 60 seconds) comes from aerobic metabolism without interference from anaerobic systems. a combination of aerobic/anaerobic metabolism, with most of the ATP coming from anaerobic sources. mostly aerobic metabolism with some anaerobic metabolism. the ATP-CP system exclusively since the runner is supplementing with creatine.
Answers
The energy needed to run a maximal 400-meter race for 50 to 60 seconds is mainly derived from a combination of aerobic and anaerobic metabolism. While aerobic metabolism contributes most of the energy needed, anaerobic metabolism also plays a significant role, with most of the ATP coming from anaerobic sources.
This is because the intense nature of the race requires the muscles to contract very quickly and forcefully, which consumes ATP at a rapid rate.
However, it is important to note that the energy source for the race can vary depending on the athlete's fitness level and training regimen. For instance, highly trained athletes may rely more on aerobic metabolism than anaerobic metabolism. Additionally, some athletes may supplement their energy stores with creatine, which is a naturally occurring compound that helps produce ATP. In such cases, the runner may rely exclusively on the ATP-CP system to provide energy during the race.
Overall, while the exact energy source for a maximal 400-meter race may vary depending on individual factors, it is safe to say that both aerobic and anaerobic metabolism play important roles in providing the necessary energy.
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What is the pathway of air into the body?
Which plays both a role in physical and chemical digestion?
teeth
saliva
gall bladder
villi
Answers
Answer:
I'm not sure on this, but I would say saliva. Take this answer with a grain of salt though
Answer:
Saliva
Explanation:
I just got 100% on Edg.
PLS HELP ASAP!!!!!!!!!!
Answers
Answer:
Bacteria horses humans all three
The carotenoid pigments of some phototrophs interact with ________ to reduce its toxicity.
Answers
The carotenoid pigments of some phototrophs interact with Singlet to reduce its toxicity.
Because carotenoids are fat-soluble substances, they are best absorbed when combined with fat. Cooking and chopping foods high in carotenes makes the nutrients more potent when they are absorbed into the bloodstream than some protein-rich foods and vegetables.
Xanthophylls and carotenes are the two main classes into which carotenoids are divided.
Carotenoids of both types have antioxidant effects. Some carotenoids can also be turned into vitamin A, which is necessary for human growth and health.
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Please help me
Two brown eyed parent have two childron with blue eyes. Give the genotypes of
each family member.
Albinism (lack of pigment) in humans is caused by a recessive gene. If normal
parents have an albino child, what is the probability that their next child will be
normal for pigment color?
Answers
Image result for Two brown eyed parent have two children with blue eyes. Give the genotypes of each family member.
The only way to present blue eyes is to inherit two copies of the blue-eyed gene. However, brown-eyed parents can pass a recessive blue-eyed gene. Therefore, two brown-eyed partners can birth a blue-eyed baby.
What is the answer ?
Answers
Answer:
A is the answer. Explanation is in the photo
Answer:
yes
Explanation:
becuase
in one to two sentences identify the purpose of the roots in a plant and how disease that harms the roots of a flowering plant would affect the plant's ability to survive
Answers
Given what we know, we can confirm that a disease that harms the roots of a plant will not allow the plant to draw in water, which it needs to maintain all basic functions of life.
What do the roots of plants do?The roots of plants are the means through which they absorb water and nutrients from the soil. Without their roots, plants cannot take in water to allow for all of the most basic functions of life, and cannot survive.
Therefore, we can confirm that a disease that harms the roots of a plant will not allow the plant to draw in water, which it needs to maintain all basic functions of life.
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In pea plants the allele for axial flowers (A) is dominant to the allele for terminal flowers (a). What is the expected genotypic ratio of a cross between two pea plants that are heterozygous for the axial flower gene?
Answers
Answer:
3:4 axial flowers
1:4 terminal flowers
Explanation:
A. a
A. AA. Aa
a. Aa. aa
The expected genotypic ratio of a cross between two pea plants that are heterozygous for the axial flower gene is 1/4 AA, 1/2 Aa and 1/4 aa.
What is a heterozygous individual?A heterozygous individual is an organism that carries two different alleles for a given gene locus.
Conversely, a homo-zygous carries the same allele for a given gene locus.In conclusion, the expected genotypic ratio of a cross between two pea plants that are heterozygous for the axial flower gene is 1/4 AA, 1/2 Aa and 1/4 aa.
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Skin cells divide about once every day. Taking this into consideration, how long does the cell spend in each of the stages above? Show one sample calculation below, and fill the information into the table.
Answers
Answer:Usually, cells will take between 5 and 6 hours to complete S phase. G2 is shorter, lasting only 3 to 4 hours in most cells. In sum, then, interphase generally takes between 18 and 20 hours. Mitosis, during which the cell makes preparations for and completes cell division only takes about 2 hours.
Explanation:
hope this helps and have a great day!
Mitosis, during which the cell makes preparations for and completes cell division only takes about 2 hours.
What do you mean by mitosis?Mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei.
Cell division by mitosis gives rise to genetically identical cells in which the total number of chromosomes is maintained. Therefore, mitosis is also known as equational division.
Mitosis consists of five morphologically distinct phases: prophase, prometaphase, metaphase, anaphase, and telophase.
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