1. How are competitive and non-competitive inhibitors caused? Is it a mutation? 2. What are the effects of inhibitors 3. Can someone explain that end product section more clearly? I'm kind of confused.
To answer your first question, mutations are not what cause this, though I don't doubt that this has occurred. Sometimes it is an artificial substance, sometimes it is natural. Not all enzyme-related reactions are good for the organism, so mechanisms against these are developed.
In response to your second question, the effect of inhibitors depend on the type of inhibitor. A non competitive inhibitor binds to a site that is different than the site that the substrate binds to. This will cause the binding site to change shape and prevent the substrate from binding to it. There are also competitive inhibitors which bind to the binding site itself and prevents the substrate from binding to it.
In response to question 3, the End-product inhibition section comments on how end-products of processes can be used as an inhibitor for the process, allowing for regulation of the process naturally within the organism.
1. What are examples of competitive inhibitors and noncompetitive inhibitors? 2. Can someone explain the allosteric site more clearly? I'm very confused on what it is :) 3.What type of energy, besides activation energy, is used in the enzyme processes?
1. Why do competitive exist if there is no significant decrease in reaction rates? 2. What happens to the substrates that get blocked by the competitive inhibitors? 3. At what speed do most metabolic processes occur?
To answer your second question, the substrates that get blocked by the competitive inhibitors will move on to find another of the same enzyme and continue the process. When this happens enough, the substrates will out number the competitive inhibitors and the reaction rate will return to normal.
To answer tour third question, the body can shift exactly how fast or slow it needs a metabolic process to occur, so there isn't an exact answer to this. I did find a website that talked more about cell metabolism though, I hope it helps!
1. Can there be more than one inhibitor for each enzyme? 2. Can competitive and non-competitive substrates both bind to the same enzyme? 3. What is the energy used during metabolic reactions?
To answer your first question, yes it is possible for there to be more than one inhibitor for each enzyme. For example, many drugs and toxins can each inhibit an enzyme at the same time.
To answer your third question, there are three different types of energy used during metabolic reactions. Kinetic, potential, and chemical energy. ATP is a type of chemical energy and can be both a part of the process and be the end product.
More information about energy can be found here: https://courses.lumenlearning.com/boundless-biology/chapter/energy-and-metabolism/#:~:text=Metabolism%20is%20the%20set%20of%20life%2Dsustaining%20chemical%20processes%20that,be%20used%20for%20cellular%20processes.
To answer your second question, yes, I believe they can bind to both at the same time. Competitive inhibitors take over the active site while non competitive inhibitors bind somewhere else, so theoretically they should both be able to bind. I found this website talking more about enzyme regulation, i hope this helps!
1. Are there exceptions to the three common patterns of metabolic pathways? If so, what are they? 2. Are there any diseases or illnesses that are caused due to having too many inhibitors in the body? 3. Are there ways to prevent inhibitors from inhibiting a metabolic pathway?
To answer your third question, with competitive you can simply increase the substrate amount and with the others you can add the protein to reverse the binding.
1. What's the most commonly used pattern of metabolic pathway? 2. Can inhibitors be caused by mutation? 3. What are some defects and diseases that effect how your metabolic pathway functions, and what do they do?
In response to your first question, the most commonly used metabolic pathways in humans are glycolosis or the Krebs Cycle. They are also the some of the most important processes as well.
3- An example of a disorder which effects the metabolic pathway function is Phenylketonuria (PKU). PKU occurs when there is a deficiency of the enzyme phenylalanine hydroxylase (PAH). This enzyme is responsible for metabolizing the phenylalanine into another amino acid. This results in high levels of phenylalanine in the blood resulting in intellectual disability.
2) I learned from answering another question on the blog that many inhibitors are artificial drugs made for medical purposes, and that others occur naturally within the body. There are mutations that cause resistance to and deficiency of natural inhibitors in the body, but I can't seem to find a specific inhibitor that is a result of a mutation. However, because cellular inhibitors can be proteins, I would imagine that there is a possibility that this could happen!
What are the effects of competitive vs non-competitive inhibitors? What is the purpose of the Krebs cycle? What is a definition of the end-product inhibition?
1- Noncompetitive inhibitors do not permanently disable the enzyme, instead they slow it down temporarily. Since the inhibitor can bind to the active-site, the substrate cannot once the inhibitor is bound. https://employees.csbsju.edu/cschaller/Reactivity/enzyme/EZbindingmode.html#:~:text=Unlike%20irreversible%20inhibitors%2C%20they%20do,completely%20by%20permanently%20disabling%20it.&text=The%20simplest%20idea%20is%20that,bound%20there%2C%20the%20substrate%20cannot.
To help answer your 2nd question here is a article that describes what an inhibitor is: https://www.hemophilia.org/bleeding-disorders-a-z/overview/inhibitors/what-is-an-inhibitor#:~:text=Therefore%20in%20some%20cases%2C%20when,These%20antibodies%20are%20called%20inhibitors.
1- what is an example of competitive inhibition? 2- What is the role of Isoleucine in end product inhibition? 3- Can someone explain on what a linear metabolic pathway is compared to a circular one?
1) I found this on bioninja and it really helped me to make better sense of it :) An example of competitive inhibition is the synthetic drug "Relenza" that helps in treating and preventing the transmission of the flu virus. The drug blocks virion release from infected cells and prevents the cleavage of an essential docking protein in the virus called haemagglutinin (which helps in binding the virus to the cell) by inhibiting the active site. This means that infected cells can't release the virions and infect other cells, which prevents the spread of the virus throughout the body. I hope that this helps! Link: https://ib.bioninja.com.au/higher-level/topic-8-metabolism-cell/untitled-6/enzyme-inhibition.html
2) Threonine is an amino acid that can assist in treating multiple nervous system disorders, and isoleucine is an amino acid that must be ingested by humans, and produced through threonine in plant and bacterial reaction pathways. An enzyme called threonine deaminase begins by converting the amino acid into a compound, and it keeps progressing throughout five stages until it becomes isoleucine. The end product is then able to bind to the allosteric sites on the threonine deaminase enzyme and inhibit it. This is done as a method of self-regulation. The end product of isoleucine inhibits its own synthesis when production becomes too high in order to preserve threonine in the body of the organism. Link: https://ib.bioninja.com.au/higher-level/topic-8-metabolism-cell/untitled-6/feedback-inhibition.html
In response to question 3, the difference between the two types of processes is that the end products within a cycle allows for the process to start again in some form with the materials produced, while a linear reaction is a more one-and-done process that doesn't interact with any of the products afterward.
1. At what rate do most metabolic processes occur? 2. What are some examples of competitive and non-competitive inhibitors? 3. How are glycolysis and the kreb cycle linked?
To answer your first question the metabolic rate of each organism varies depending on multiple factors, here is a link that should add additional information. https://www.active.com/fitness/calculators/bmr
1) In non-competitive inhibition, how does the inhibitor binding to the allosteric site cause a change in the active site? What forces are at play? 2) Could someone explain the graph at Figure 7? I am a bit confused as to why the rate of reaction would higher in the presence of competitive inhibitors than in the presence of non-competitive inhibitors. 3) What are examples of inhibitors (artificial or natural) that have negative effects on the body?
To give you some examples for question here is a website that has an abstract from a medical document which includes some artificial examples of enzyme inhibitors. https://medcraveonline.com/ATROA/effectiveness-of-enzyme-inhibitors-in-biomedicine-and-pharmacotherapy.html
1. How is inhibition utilized within organisms? 2. Can inhibition cause unwanted effects due to an antigen or other agent? 3. What is the organism that utilizes the most metabolic reactions?
To my knowledge it is hummingbirds that have the highest metabolic rate of any organism, this is utilized based on how much energy they can expend based on their food intake. Here is a website that may be able to add more detail. https://web.stanford.edu/group/stanfordbirds/text/essays/Metabolism.html
1. Do specific substrates bind to specific allosteric sites to accomplish non-competitive inhibition in enzymes or can any substrate bind in that manner to any enzyme? 2. How specifically can inhibition be reversed? 3. Do all metabolic processes require energy?
1. How are competitive and non-competitive inhibitors caused? Is it a mutation?
ReplyDelete2. What are the effects of inhibitors
3. Can someone explain that end product section more clearly? I'm kind of confused.
To answer your first question, mutations are not what cause this, though I don't doubt that this has occurred. Sometimes it is an artificial substance, sometimes it is natural. Not all enzyme-related reactions are good for the organism, so mechanisms against these are developed.
DeleteIn response to your second question, the effect of inhibitors depend on the type of inhibitor. A non competitive inhibitor binds to a site that is different than the site that the substrate binds to. This will cause the binding site to change shape and prevent the substrate from binding to it. There are also competitive inhibitors which bind to the binding site itself and prevents the substrate from binding to it.
DeleteIn response to question 3, the End-product inhibition section comments on how end-products of processes can be used as an inhibitor for the process, allowing for regulation of the process naturally within the organism.
Delete1. What are examples of competitive inhibitors and noncompetitive inhibitors?
ReplyDelete2. Can someone explain the allosteric site more clearly? I'm very confused on what it is :)
3.What type of energy, besides activation energy, is used in the enzyme processes?
TO answer your first question, some competitive inhibitors are sildenafil and cyanide. Some non-competitive inhibitors are penicillin and strychnine.
DeleteIn response to your third question, the energy used in metabolism is either from sunlight or it is from ATP.
Deletehttps://opentextbc.ca/biology/chapter/4-1-energy-and-metabolism/
In response to question 2, the allosteric site is simply the area where a substance binds to the enzyme to inhibit the reaction process from occuring.
Delete1. Why do competitive exist if there is no significant decrease in reaction rates?
ReplyDelete2. What happens to the substrates that get blocked by the competitive inhibitors?
3. At what speed do most metabolic processes occur?
To answer your second question, the substrates that get blocked by the competitive inhibitors will move on to find another of the same enzyme and continue the process. When this happens enough, the substrates will out number the competitive inhibitors and the reaction rate will return to normal.
DeleteSource: https://www.khanacademy.org/science/biology/energy-and-enzymes/enzyme-regulation/a/enzyme-regulation?modal=1#:~:text=The%20competitive%20inhibitor%20binds%20to,longer%20catalyze%20the%20reaction%20efficiently.
To answer tour third question, the body can shift exactly how fast or slow it needs a metabolic process to occur, so there isn't an exact answer to this. I did find a website that talked more about cell metabolism though, I hope it helps!
Deletehttps://www.nature.com/scitable/topicpage/cell-metabolism-14026182/
To answer your first question, it is because they allow for competition with naturally foereign and unwanted objects, such as drugs.
Delete1. Can there be more than one inhibitor for each enzyme?
ReplyDelete2. Can competitive and non-competitive substrates both bind to the same enzyme?
3. What is the energy used during metabolic reactions?
To answer your first question, yes it is possible for there to be more than one inhibitor for each enzyme. For example, many drugs and toxins can each inhibit an enzyme at the same time.
DeleteSource: https://www.ncbi.nlm.nih.gov/books/NBK22530/
To answer your third question, there are three different types of energy used during metabolic reactions. Kinetic, potential, and chemical energy. ATP is a type of chemical energy and can be both a part of the process and be the end product.
DeleteMore information about energy can be found here: https://courses.lumenlearning.com/boundless-biology/chapter/energy-and-metabolism/#:~:text=Metabolism%20is%20the%20set%20of%20life%2Dsustaining%20chemical%20processes%20that,be%20used%20for%20cellular%20processes.
To answer your second question, yes, I believe they can bind to both at the same time. Competitive inhibitors take over the active site while non competitive inhibitors bind somewhere else, so theoretically they should both be able to bind. I found this website talking more about enzyme regulation, i hope this helps!
Deletehttps://www.khanacademy.org/science/ap-biology/cellular-energetics/environmental-impacts-on-enzyme-function/a/enzyme-regulation
1. Are there exceptions to the three common patterns of metabolic pathways? If so, what are they?
ReplyDelete2. Are there any diseases or illnesses that are caused due to having too many inhibitors in the body?
3. Are there ways to prevent inhibitors from inhibiting a metabolic pathway?
To answer your second question, it appears that hemophilia is caused by a surplus of inhibitors that prevent coagulation.
DeleteTo answer your third question, with competitive you can simply increase the substrate amount and with the others you can add the protein to reverse the binding.
Delete1. What's the most commonly used pattern of metabolic pathway?
ReplyDelete2. Can inhibitors be caused by mutation?
3. What are some defects and diseases that effect how your metabolic pathway functions, and what do they do?
In response to your first question, the most commonly used metabolic pathways in humans are glycolosis or the Krebs Cycle. They are also the some of the most important processes as well.
Deletehttp://homepage.ufp.pt/pedros/bq/integration.htm
3- An example of a disorder which effects the metabolic pathway function is Phenylketonuria (PKU). PKU occurs when there is a deficiency of the enzyme phenylalanine hydroxylase (PAH). This enzyme is responsible for metabolizing the phenylalanine into another amino acid. This results in high levels of phenylalanine in the blood resulting in intellectual disability.
Deletehttps://www.webmd.com/a-to-z-guides/inherited-metabolic-disorder-types-and-treatments
https://www.aboutkidshealth.ca/Article?contentid=938&language=English#:~:text=Two%20common%20diet%2Daffected%20metabolic,in%20the%20body%2C%20causing%20problems.
2) I learned from answering another question on the blog that many inhibitors are artificial drugs made for medical purposes, and that others occur naturally within the body. There are mutations that cause resistance to and deficiency of natural inhibitors in the body, but I can't seem to find a specific inhibitor that is a result of a mutation. However, because cellular inhibitors can be proteins, I would imagine that there is a possibility that this could happen!
Delete3. An example of a metabolic disease that affects how the metabolic process functions would be Diabetes
Deletehttps://www.britannica.com/science/nutritional-disease/Diabetes-mellitus-and-metabolic-disorders
What are the effects of competitive vs non-competitive inhibitors?
ReplyDeleteWhat is the purpose of the Krebs cycle?
What is a definition of the end-product inhibition?
To answer your third question, it is a product which inhibits the creation of more of the same enzyme.
Delete2- The Krebs cycle in is the process of energy production and is essential in aerobic respiration.
Deletehttps://www.sigmaaldrich.com/technical-documents/articles/biofiles/citric-acid-cycle.html
To answer your 2nd question, the Krebs Cycle is one of the main drivers of cellular respiration.
Deletehttps://www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/pyruvate-oxidation-and-the-citric-acid-cycle/a/the-citric-acid-cycle
Do non-competitive inhibitors permanentley disable the enzyme?
ReplyDeleteWhat tells the body to produce inhibitors?
What are other ways item can be metabolized?
1- Noncompetitive inhibitors do not permanently disable the enzyme, instead they slow it down temporarily. Since the inhibitor can bind to the active-site, the substrate cannot once the inhibitor is bound.
Deletehttps://employees.csbsju.edu/cschaller/Reactivity/enzyme/EZbindingmode.html#:~:text=Unlike%20irreversible%20inhibitors%2C%20they%20do,completely%20by%20permanently%20disabling%20it.&text=The%20simplest%20idea%20is%20that,bound%20there%2C%20the%20substrate%20cannot.
To help answer your 2nd question here is a article that describes what an inhibitor is:
Deletehttps://www.hemophilia.org/bleeding-disorders-a-z/overview/inhibitors/what-is-an-inhibitor#:~:text=Therefore%20in%20some%20cases%2C%20when,These%20antibodies%20are%20called%20inhibitors.
1- what is an example of competitive inhibition?
ReplyDelete2- What is the role of Isoleucine in end product inhibition?
3- Can someone explain on what a linear metabolic pathway is compared to a circular one?
1) I found this on bioninja and it really helped me to make better sense of it :)
DeleteAn example of competitive inhibition is the synthetic drug "Relenza" that helps in treating and preventing the transmission of the flu virus. The drug blocks virion release from infected cells and prevents the cleavage of an essential docking protein in the virus called haemagglutinin (which helps in binding the virus to the cell) by inhibiting the active site. This means that infected cells can't release the virions and infect other cells, which prevents the spread of the virus throughout the body. I hope that this helps!
Link: https://ib.bioninja.com.au/higher-level/topic-8-metabolism-cell/untitled-6/enzyme-inhibition.html
2) Threonine is an amino acid that can assist in treating multiple nervous system disorders, and isoleucine is an amino acid that must be ingested by humans, and produced through threonine in plant and bacterial reaction pathways. An enzyme called threonine deaminase begins by converting the amino acid into a compound, and it keeps progressing throughout five stages until it becomes isoleucine. The end product is then able to bind to the allosteric sites on the threonine deaminase enzyme and inhibit it. This is done as a method of self-regulation. The end product of isoleucine inhibits its own synthesis when production becomes too high in order to preserve threonine in the body of the organism.
DeleteLink: https://ib.bioninja.com.au/higher-level/topic-8-metabolism-cell/untitled-6/feedback-inhibition.html
In response to question 3, the difference between the two types of processes is that the end products within a cycle allows for the process to start again in some form with the materials produced, while a linear reaction is a more one-and-done process that doesn't interact with any of the products afterward.
Delete1. At what rate do most metabolic processes occur?
ReplyDelete2. What are some examples of competitive and non-competitive inhibitors?
3. How are glycolysis and the kreb cycle linked?
To answer your first question the metabolic rate of each organism varies depending on multiple factors, here is a link that should add additional information. https://www.active.com/fitness/calculators/bmr
Delete1) In non-competitive inhibition, how does the inhibitor binding to the allosteric site cause a change in the active site? What forces are at play?
ReplyDelete2) Could someone explain the graph at Figure 7? I am a bit confused as to why the rate of reaction would higher in the presence of competitive inhibitors than in the presence of non-competitive inhibitors.
3) What are examples of inhibitors (artificial or natural) that have negative effects on the body?
To give you some examples for question here is a website that has an abstract from a medical document which includes some artificial examples of enzyme inhibitors. https://medcraveonline.com/ATROA/effectiveness-of-enzyme-inhibitors-in-biomedicine-and-pharmacotherapy.html
Delete1. How is inhibition utilized within organisms?
ReplyDelete2. Can inhibition cause unwanted effects due to an antigen or other agent?
3. What is the organism that utilizes the most metabolic reactions?
To my knowledge it is hummingbirds that have the highest metabolic rate of any organism, this is utilized based on how much energy they can expend based on their food intake. Here is a website that may be able to add more detail. https://web.stanford.edu/group/stanfordbirds/text/essays/Metabolism.html
Delete1. Do specific substrates bind to specific allosteric sites to accomplish non-competitive inhibition in enzymes or can any substrate bind in that manner to any enzyme?
ReplyDelete2. How specifically can inhibition be reversed?
3. Do all metabolic processes require energy?