Energy System in Muscle Cells Unit 1

Question 1

During strenuous exercise, what type of respiration does the body carry out ?

Answer 1

Lactate metabolism

Question 2

Which two stages of respiration do not occur because of a lack of oxygen ?

Answer 2

Citric Acid Cycle and Electron Transport Chain

Question 3

How man ATPs are made during Lactate Metabolism ?

Answer 3

2 ATPs

Question 4

During Lactate Metabolism, what does the pyruvate get turned into after glycolysis ?

Answer 4

Lactic Acid (Lactate)

Question 5

What debt is said to have built up during lactate metabolism ?

Answer 5

Oxygen debt

Question 6

When is the oxygen debt built up during lactate metabolism paid back ?

Answer 6

During the recovery period

Question 7

What substance is reformed following the oxygen debt being repaid ?

Answer 7

Pyruvate

Question 8

Name the two types of skeletal muscle fibre

Answer 8

Slow twitch and fast twitch muscle fibres

Question 9

Which type of fibre is used during endurance events like long distance run or cycle ?

Answer 9

Slow twitch muscle fibres

Question 10

Which type of fibre is used during power events such as a sprint or weight-lifting ?

Answer 10

Fast twitch muscle fibres