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How can a molecule serve as both an inhibitor and substrate in an enzyme system characterized by feedback inhibition?
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How does feedback inhibition works?
Feedback inhibition works when the product of the process is an inhibitor of one or more steps in the process producing the product. An example is the release of insulin upon consumption of food. Eating releases raises blood sugar and high blood sugar releases insulin, which reduces blood sugar levels.
Is it true that PEP is a feedback inhibitor of Phosphofructokinase?
No, it is not true. PEP, or phosphoenolpyruvate, is actually a substrate for phosphofructokinase (PFK), a key enzyme in glycolysis. PEP is converted to fructose-1,6-bisphosphate by PFK, which is an important step in the glycolytic pathway.
End products of biosynthetic pathways often act to block the initial step in that pathway This phenomenon is called?
metabolic inhibition
Regulatory device in which the product of a pathway binds to an enzyme early in the pathway?
feedback inhibition
The body mechanism in which the product or result of a process stops or limits the process?
Feedback inhibition
What are the types of feedback inhibition?
There are two main types of feedback inhibition: competitive inhibition, where an inhibitor competes with the substrate for the active site of an enzyme; and non-competitive inhibition, where an inhibitor binds to a site on the enzyme other than the active site, altering the enzyme's shape and reducing its activity.
How does feedback inhibition works?
Feedback inhibition works when the product of the process is an inhibitor of one or more steps in the process producing the product. An example is the release of insulin upon consumption of food. Eating releases raises blood sugar and high blood sugar releases insulin, which reduces blood sugar levels.
Do you think that feeling of fullness and hunger are examples of feedback inhibition?
The feeling of fullness and hunger are examples of the negative feedback inhibition.
How does inhibition works?
Feedback inhibition works when the product of the process is an inhibitor of one or more steps in the process producing the product. An example is the release of insulin upon consumption of food. Eating releases raises blood sugar and high blood sugar releases insulin, which reduces blood sugar levels.
The process by which the product of a system shuts down the system or limits its operation is called the inhibition?
feedback inhibition
Is it true that PEP is a feedback inhibitor of Phosphofructokinase?
No, it is not true. PEP, or phosphoenolpyruvate, is actually a substrate for phosphofructokinase (PFK), a key enzyme in glycolysis. PEP is converted to fructose-1,6-bisphosphate by PFK, which is an important step in the glycolytic pathway.
What describes a process the cell use to control metabolism?
feedback inhibition
What term a process the cell uses to control metabolism?
feedback inhibition
What term describes a process the cell to control metabolism?
feedback inhibition
Why is ACTH elevated in Addisons disease?
The steroid hormones produced by the adrenal cortex exhibit feedback inhibition on ACTH production, therefore a low concentration of corticosteroids (as seen in Addisons disease) will not exhibit this feedback inhibition. Without this inhibition, ACTH levels are not regulated and therefore rise.
End products of biosynthetic pathways often act to block the initial step in that pathway This phenomenon is called?
metabolic inhibition
When a pathway is subject to allosteric feedback inhibition ...?
an accumulation of effectors slows the pathway.
