Enzymes and Respiration

Question 1

Many chemical reactions inside cells are controlled by [ ] - including the ones in [ ]

Answer 1

enzymes

respiration

Question 2

What is respiration?

Answer 2

The process of releasing energy from the breakdown of glucose - and it goes on in every cell in your body

Question 3

Respiration involves many reactions, all of which are catalysed by [ ]

Answer 3

Enzymes

Question 4

What is aerobic respiration?

Answer 4

Respiration using oxygen. It’s the most efficient way to release energy from glucose

Question 5

Aerobic respiration goes on all the time in [ ]

Answer 5

Plants and animals

Question 6

Where do most of the reactions for aerobic respiration take place?

Answer 6

In the mitochondria

Question 7

What is the word equation for respiration?

Answer 7

Glucose + Oxygen –> Carbon dioxide + water + energy

Question 8

What is the energy released from respiration used for? (4)

Answer 8

1) To build up larger molecules from smaller ones (like proteins from amino acids)
2) In animals, to allow the muscles to contract (which in turn allows them to move about)
3) In mammals and birds the energy is used to keep their body temp. steady
4) In plants to build sugars, nitrates and other nutrients into amino acids, which are then built up into proteins