Soc18

Question 1

Glucose

Answer 1

A major source of energy for most cells in the body

Question 2

Aerobic respiration

Answer 2

The process of releasing energy from glucose, using oxygen

Question 3

Anaerobic respiration

Answer 3

The process of releasing energy from glucose, without oxygen

Question 4

Aerobic exercise

Answer 4

Working at a moderate intensity allowing the body time to ultilise oxygen for energy production and to work for continuous period, e.g. long - distance events

Question 5

Anaerobic exercise

Answer 5

Anaerobic activities are usually short but intense e.g. sprinting, lifting weights and jumping

Question 6

Lactic acid

Answer 6

Produced in the muscles when the body is working anaerobically at high intensity

Question 7

Cramp

Answer 7

Painful, involuntary contraction of a muscle, usually caused by fatigue

Question 8

Aerobic respiration word equation

Answer 8

Glucose + oxygen —> Carbon dioxide + water + energy

Question 9

Anaerobic respiration word equation

Answer 9

Glucose —> energy + lactic acid