Why is ATP referred to as the "energy currency" of the cell?

Because it provides energy for biological work, including muscle contraction

Because it is found only in the liver

Because it stores genetic information

What does the diagram illustrate about ATP and energy release?

ATP loses a phosphate group, releasing energy for muscle contraction.

ATP gains a phosphate group, storing energy.

What is the main problem associated with ATP storage in muscles during exercise?

ATP stores are extremely limited

ATP stores increase with exercise

ATP stores are only used during rest

According to the material, what is a potential solution to the problem of limited ATP stores in muscles?

Find ways to replenish muscular ATP stores

Why is the actual ATP store in the human body considered insufficient?

It is much less than what is required in a 24-hour period

It is more than what is required in a 24-hour period

It is only needed for digestion

Compare the required ATP store for a 24-hour period to the actual ATP store in the human body. What does this imply about energy metabolism?

The body must constantly replenish ATP to meet energy demands

The body has excess ATP for all activities

ATP is not important for energy metabolism

The body stores enough ATP for a week

What does the diagram illustrate about ATP storage in the human body?

The actual ATP store is much less than the required ATP store

The actual ATP store is more than the required ATP store

The actual and required ATP stores are equal

Based on the diagram, what is the role of food and fuel substrates in the resynthesis of ATP?

They provide the energy required for ATP resynthesis

They directly convert ADP to ATP without energy

They are not involved in ATP resynthesis

Which of the following factors influence ATP demand during exercise?

Exercise duration and exercise intensity

What is the main difference between anaerobic and aerobic energy systems?

Anaerobic systems do not require oxygen, aerobic systems require oxygen

Anaerobic systems require oxygen, aerobic systems do not

Both require oxygen to synthesise ATP

Neither require oxygen to synthesise ATP

Why does the dominant energy system used during exercise change?

It depends on the ATP demand of the activity

It depends on the type of clothing worn

Which two substances are primarily used in the ATP-CP system to produce energy in muscles?

ATP and creatine phosphate (CP)

Which of the following best describes the ATP-CP system?

It involves simple, rapid chemical reactions.

It requires oxygen to function.

It is the slowest way to produce ATP.

It uses glucose as its main energy source.

According to the key definitions, what is the main function of creatine phosphate in muscle cells?

To store and release energy for ATP synthesis

Why is the ATP-CP system considered the fastest way to produce ATP?

It involves simple, rapid chemical reactions.

It involves complex, slow reactions.

Which type of physical activity primarily uses the ATP-CP system?

Short, explosive, high-intensity activities lasting up to ~10 seconds

When is the ATP-CP system most likely to be used during movement?

At the start of all movement, especially when effort is maximal

Why is the ATP-CP system important for athletes in events like the high jump or gymnastics vault?

It supplies quick energy for short, maximal efforts

It provides energy for long-duration activities

It helps with recovery after exercise

It is used for endurance training

What is the main limiting factor of the ATP-CP system in muscles?

The amount of creatine phosphate stored in the muscles

The amount of oxygen available in the blood

The amount of glucose stored in the liver

The amount of lactic acid produced

What must happen once CP is depleted in the muscle?

ATP must be resynthesised using other energy systems

The muscle immediately stops working

Oxygen must be supplied to the muscle

Lactic acid must be removed from the muscle

When can CP be replenished in the muscles?

During rest or low-intensity recovery

Only during high-intensity exercise

Which energy system helps replenish CP during recovery?

The anaerobic glycolysis system

Why is it necessary for ATP to be resynthesised using other energy systems after CP is depleted?

Because CP stores are limited and deplete quickly

Because ATP is not needed for muscle contraction

Because oxygen is not available during exercise

Because glucose is the only energy source for muscles

Which of the following is a strength of the ATP-CP system?

It is the fastest system to resynthesise ATP

It produces fatiguing by-products

It has a complex process with many steps

What is a limitation of the ATP-CP system?

It has very limited capacity as CP stores run out quickly

It can be used for long-duration activities

It produces a large amount of ATP over time

It does not require recovery time

Why is the ATP-CP system only useful for very short-duration activities?

Because CP stores are depleted quickly

Because it produces fatiguing by-products

Which of the following best explains why the ATP-CP system does not cause fatigue during use?

It does not produce any fatiguing by-products

It produces lactic acid as a by-product

It uses oxygen to prevent fatigue

A sprinter is using the ATP-CP system during a 100m dash. What must happen after the race for the sprinter to use this system again at full capacity?

The sprinter must rest to allow CP levels to recover

The sprinter must consume carbohydrates

The sprinter must increase oxygen intake

The sprinter must perform aerobic exercise

Which of the following best describes the anaerobic glycolysis system?

It provides energy for ATP resynthesis through the breakdown of glucose without requiring oxygen.

It uses oxygen to break down glucose for ATP production.

It only occurs in the presence of lactic acid.

It is faster than the ATP–CP system and produces less ATP.

What happens to pyruvic acid when oxygen is not available during anaerobic glycolysis?

It is converted into lactic acid.

It is converted into ATP directly.

It is converted into carbon dioxide.

ATP Structure and Function Quiz Quiz

100 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does ATP stand for?

Adenosine triphosphate

Adenosine diphosphate

Adenosine tetraphosphate

Adenosine monophosphate

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the function of ATP in the body?

It is the body’s energy currency.

It is a structural protein.

It is a type of enzyme.

It is a waste product.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the components of ATP?

Adenosine and 3 phosphate groups

Adenosine and 2 phosphate groups

Adenosine and 1 phosphate group

Adenosine and 4 phosphate groups

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when one phosphate group breaks off from ATP?

Energy is released.

Oxygen is released.

Glucose is produced.

Water is formed.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct equation for the breakdown of ATP?

ATP → ADP + Pi + energy

ATP → AMP + Pi + energy

ATP → ADP + glucose + energy

ATP → AMP + ADP + energy

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the energy released from ATP?

It powers biological work like muscle contraction.

It is stored as fat.

It is used to produce DNA.

It is used to make proteins.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is ADP?

A by-product that results when ATP loses one phosphate group

A molecule that stores more energy than ATP

A type of sugar

A type of enzyme

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ATP Structure and Function Quiz

What does ATP stand for?

Which of the following best describes the function of ATP in the body?

What are the components of ATP?

What happens when one phosphate group breaks off from ATP?

What is the correct equation for the breakdown of ATP?

What is the role of the energy released from ATP?

What is ADP?

Why is ATP referred to as the "energy currency" of the cell?

What does the diagram illustrate about ATP and energy release?

How long are ATP stores in muscles sufficient to support exercise?

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