Bioenergetics

Question 1

How much ATP does the body store at one time?
15-20g
80-100g
60-70g
15-20g
30-50g

Answer 1

80-100 mg

Question 2

The process of transferring energy via phosphate bonds is called…

Answer 2

Phosphorylation

Question 3

Complete breakdown of one glycerol molecule yields…..miles of ATP.

• 12
• 3
• 4
• 19

Answer 3

19

Question 4

What is the end product of aerobic glycolysis?

• pyruvate
• acetyl co a
• citrate
• lactic acid

Answer 4

Pyruvate

Question 5

What is the end product of anaerobic glycolysis?

• lactate
• pyruvic acid
• alanine
• citrate

Answer 5

Lactate

Question 6

Approximately what percentage of ATP synthesis occurs in he respiratory chain by oxidative reactions coupled with phosphorylation?

• 90%
• 45%
• 90%
• 60%
• 30%

Answer 6

90%

Question 7

What are the major energy sources for maintaining as needed ATP resynthesis?

• fat and glycogen
• oxygen and water
• glycogen and protein
• protein and carbohydrate

Answer 7

Fat and glycogen

Question 8

Phosphocreatine, under maximal effort can produce an energy yield for…

• 30-45 seconds
• 1-2 minutes
• less than 10 seconds
• 3-6 minutes

Answer 8

Less than 10 seconds

Question 9

Where does most of the energy for phosphorylation come from?

• cellular mitosis
• byproduct of AMP
• breakdown of ATP
• The oxidation of the dietary carbohydrate, lipid and protein macronutrients

Answer 9

The oxidation of the dietary carbohydrate, lipid and protein macronutrients

Question 10

Why is the most important function of the Citric acid cycle?

• producing CO2
• generating electrons
• synthesising lactate
• producing ATP

Answer 10

Generating electrons