6. When the end product of a pathway inhibits catalysis of the first step of that pathway, this phenomenon is called A. reversible covalent modification. B. feedback inhibition. C. metabolic channeling. D. non-competitive inhibition.

B) Feedback inhibition

Explanation:

Feedback inhibition is a situation in which the end product of a reaction controls the action of the enzyme that helped produce it. In this process the end products formed at the end of a sequence of reactions participate in inhibiting the activity of the enzymes that helped synthesis the end product. Some examples of products that are used in feedback inhibition are CTP, citrate and Isoleucine. While negative feedback is used in the context of inhibition, negative feedback may also be used for promoting a certain process.

Therefore, when the end product of a pathway inhibits catalysis of the first step of that pathway, this phenomenon is called Feedback inhibition.

what's the

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.