Aerobic Respiration

Question 1

What are chemical reactions inside the body controlled by?

Answer 1

Enzymes

Question 2

What are the reactants of aerobic respiration?

Answer 2

Glucose and oxygen

Question 3

What are the products of aerobic respiration?

Answer 3

Carbon dioxide and water (and energy)

Question 4

Where, in the cell, do most of the reactions in aerobic respiration take place?

Answer 4

Mitochondria

Question 5

How is energy produced by respiration used by ALL organisms?

Answer 5

To build larger molecules from smaller ones

Question 6

How is energy produced by respiration used by mammals and birds?

Answer 6

To maintain a steady body temperature in colder surroundings

Question 7

How is energy produced by respiration used by plants?

Answer 7

To build up sugars, nitrates and other nutrients into amino acids which are then used to make proteins

Question 8

What are the two main ways the body responds during exercise?

Answer 8

Increased heart rate and rate and depth of breathing increases

Question 9

Why does the body respond to exercise in this way?

Answer 9

To increase blood flow to muscles, to increase the supply of glucose and oxygen (increasing rate of respiration so more energy is produced) and increase the rate of removal of carbon dioxide.