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Chapter 7: Q.4 (page 203)

The energy currency used by cells is

a. ATP

b. ADP

c. AMP

d. adenosine

Short Answer

Expert verified

The correct option is (a)

Step by step solution

01

Introduction

Cellular respiration is a process in which organisms convert nutrients or food (glucose) and oxygen into chemical energy. This energy is referred to as energy currency which is used by the cell.

02

Explanation for the correct option 

Option a is correct because when the cell requires energy ATP molecules break into ADP and phosphate and provide energy to the cell. so it is considered the energy currency of the cell.

03

Step 3. Explanation of incorrect options 

Option b is incorrect because ADP (Adenosine diphosphate) is not the energy currency of the cell.

Option c is incorrect because AMP (Adenosine monophosphate) is not the energy currency used by cells.

Option d is incorrect because adenosine is not used by cells as energy.

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Most popular questions from this chapter

Because they lose their mitochondria during development, red blood cells cannot perform aerobic respiration; however, they do perform glycolysis in the cytoplasm. Why do all cells need an energy source, and what would happen if glycolysis were blocked in a red blood cell?

GTP or ATP is produced during the conversion of

________.

a. isocitrate into α-ketoglutarate

b. succinyl CoA into succinate

c. fumarate into malate

d. malate into oxaloacetate

The effect of high levels of ADP is to ________ in cellular respiration.

  1. increase the activity of specific enzymes
  2. decrease the activity of specific enzymes
  3. have no effect on the activity of specific enzymes
  4. slow down the pathway

Why is it beneficial for cells to use ATP rather than energy directly from the bonds of carbohydrates? What are the greatest drawbacks to harnessing energy directly from the bonds of several different compounds?

What do the electrons added to NAD+do?

  1. They become part of a fermentation pathway.
  2. They go to another pathway for ATP production.
  3. They energize the entry of the acetyl group into the citric acid cycle.
  4. They are converted to NADP.
See all solutions

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