1. ATP, Fuels, Rate and Yield

What is ATP?

• A protein

•  A carbohydrate

• A chemical energy ‘currency

• A type of cell

What does ATP power?

• All of the cell’s metabolic activities

• Only muscle cell activities

•  Only cell division

• Only energy production

What does an ATP molecule consist of?

• Adenosine and one phosphate group

• Adenosine and two phosphate groups

• Adenosine and three phosphate groups

• Adenosine and four phosphate groups

What happens during the breakdown of ATP to ADP and Pi?

• Energy is released

• Energy is absorbed

• No energy is involved

• Water is released

How is the energy stored in ATP released?

• Through breaking the adenosine molecule

• Through breaking the phosphate bonds

• Through breaking the inorganic molecule

• Through breaking the chemical bonds between protein molecules

What happens when the outer phosphate is removed from ATP?

• ATP is converted to ADP and Pi

• ATP is converted to glucose

• ATP is converted to oxygen

• ATP is converted to water

How much ATP does the body store within the cells?

•  Enough to power 10 seconds of maximal exercise

•  Enough to power 1-2 seconds of maximal exercise

• Enough to power 30 seconds of maximal exercise

•  Enough to power 5 minutes of maximal exercise

Why must the body replace or resynthesize ATP on an ongoing basis during exercise?

• Because ATP is used up during exercise

• Because ATP cannot be replenished

• Because ATP is converted to fat

•  Because ATP is stored in the muscles

What is the ‘power source’ that the cell taps into for energy?

• Adenosine

• The adenosine molecule and the phosphate groups

•  Only the inorganic molecule

• The protein molecules

What is the formula for the breakdown of ATP to ADP and Pi?

• ATP ↔ ADP + Pi + Energy

• ADP ↔ ATP + Pi + Energy

• Pi ↔ ATP + ADP + Energy

• Energy ↔ ATP + ADP + Pi