/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q2CC Question: Regulation of isoleuci... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 8: Q2CC (page 143)

Question: Regulation of isoleucine synthesis is an example of feedback inhibition of an anabolic pathway. With that in mind, explain how ATP might be involved in feedback inhibition of a catabolic pathway.

Short Answer

Expert verified

A catabolic pathway leads to the breakdown of the substances that produce energy molecules. ATP act as an allosteric inhibitor by blocking the enzyme required for the catabolic reaction. When the ATP is abundantly present, it blocks the catabolic reaction.

Step by step solution

01

Description of metabolism

Metabolism is the process in which the chemical reaction takes place and leads to different types of metabolites. Two mechanisms that happen in the metabolic reactions are anabolism and catabolism.

The process in which complex molecules are separated into simpler substances is known as catabolism. Anabolism is the synthesis of larger molecules from smaller molecules.

02

Inhibition of a metabolic reaction

The metabolic process is a chemical reaction that has to be maintained in equilibrium. Every biological reaction has to be regulated periodically. The regulation has to be done by inhibiting the reaction when the product produced from the reactant is surplus.

03

ATP as a feedback inhibitor

The catabolic process is the mechanism that produces ATP molecules. When there is more ATP produced from a catabolic process, it tends to inhibit the enzyme of the particular catabolic process.

The blocking of the enzyme may stop the catabolic process. It further stops more ATP formation.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Many spontaneous reactions occur very slowly. Why don鈥檛 all spontaneous reactions occur instantly?

Question: Life requires energy. In a short essay (100-150 words), describe the basic principles of bioenergetics in an animal cell. How is the flow and transformation of energy different in a photosynthesizing cell? Include the role of ATP and enzymes in your discussion.

Question: Using a series of arrows, draw the branched metabolic reaction pathway described by the following statements, and then answer the question at the end. Use red arrows and minus signs to indicate inhibition.

L can form either M or N.

M can form O.

O can form either P or R.

P can form Q.

R can form S.

O inhibits the reaction of L to form M.

Q inhibits the reaction of O to form P.

S inhibits the reaction of O to form R.

Which reaction would prevail if both Q and S were present in the cell in high concentrations?

  1. \({\rm{L}}\, \to {\rm{M}}\)
  2. \({\rm{M}}\, \to {\rm{O}}\)
  3. \({\rm{L}}\, \to {\rm{N}}\)
  4. \({\rm{O}}\, \to {\rm{P}}\)

A mature lysosome has an internal pH of around 4.5. Using Figure 8.17b as a guide, draw a graph showing what you would predict for a lysosomal enzyme's reaction rate. Label its optimal pH, assuming its optimal pH matches its environment.

Some nighttime partygoers wear glow-in-the-dark necklaces. The necklaces start glowing once they are 鈥渁ctivated鈥� by snapping the necklace in a way that allows two chemicals to react and emit light in the form of chemiluminescence. Is the chemical reaction exergonic or endergonic? Explain your answer.
See all solutions

Recommended explanations on Biology Textbooks

Genetic Information

Read Explanation

Cellular Energetics

Read Explanation

Astrobiological Science

Read Explanation

Cell Cycle

Read Explanation

Ecology

Read Explanation

Ecosystems

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.