1.8 Energy Systems In Muscle Cells

Question 1

Molecule that serves as a source of phosphate and energy in muscle cells

Answer 1

Creatine phosphate (CP)

Question 2

Type of muscle fibre used in short bursts of activity

Answer 2

Fast-twitch (type 2) fibre

Question 3

Produced by the fermentation of pyruvate in mammalian muscle cells

Answer 3

Lactic acid

Question 4

Painful condition caused by the accumulation of lactic acid in muscles

Answer 4

Muscle fatigue

Question 5

Protein in muscle tissue that can bind with oxygen

Answer 5

Myoglobin

Question 6

Builds up during fermentation in muscle cells

Answer 6

Oxygen debt

Question 7

Muscle attached to skeleton that brings about locomotion

Answer 7

Skeletal muscle

Question 8

Type of muscle fibre used in endurance activities

Answer 8

Slow-twitch (type 1) fibre