Exercise

Question 1

Why does breathing increase and deepen during exercise?

Answer 1

It is done to meet increased oxygen demand and to remove excess carbon dioxide produced during exercise.

Question 2

Cells are respiring _____ when exercising
(a) more
(b) less
(c) at the same rate

Answer 2

More

Question 3

TRUE OR FALSE: inhalation gets deeper when exercising

Answer 3

True

Question 4

What does the body do when you exercise?

Answer 4

• breathing rate increases
• inhalation is deeper ie. volume increases
• cells are respiring more (using up more oxygen and producing more CO2)

Question 5

During exercise, you supply more (a) ________ to the muscle cells and (b) ________ more CO2 from the muscle cells

Answer 5

(A) oxygen
(B) remove

Question 6

How does the brain know to send signals during exercise?

Answer 6

It detects a change in CO2 concentration

Question 7

(a) ________ respiration requires oxygen
(b) ________ respiration does not require oxygen

Answer 7

(a) aerobic
(b) anaerobic

Question 8

What is the word equation for anaerobic respiration in humans/bacteria & fungi?

Answer 8

Humans: glucose -> lactic acid
B&F: glucose -> ethanol & carbon dioxide