Aerobic respiration

Question 1

What are chemical reactions inside cells controlled by

Answer 1

Enzymes

Question 2

During aerobic respiration, there are chemical reactions occur that do what two things?

Answer 2

Use glucose and oxygen

Release energy

Question 3

Where do most aerobic respiration reactions take place

Answer 3

Mitochondria

Question 4

Energy released during respiration is used by the organism. Name 4 ways the energy may be used

Answer 4

To build larger molecules from smaller ones
In animals, to enable muscles to contract
In mammals and birds, to maintain a steady body temperature in cold surroundings
Plants, to build up sugars, nitrates and other nutrients into amino acid which are then built up to make protein

Question 5

What 2 changes take place in exercise

Answer 5

Heart rate increases

The rate and depth of breathing increases

Question 6

Why does the heart rate and breathing increase in exercise

Answer 6

Allow blood to flow to muscles so increases the supply of sugar and oxygen
Increase the rate of removal of carbon in dioxide

Question 7

Why do my lea store glucose as glycogen

Answer 7

So it can be converted back to glucose when exercising