Enzymes and anaerobic/ aerobic respiration.

What theory are enzymes?

Lock and key

What are enzymes made up of? What does it do?

Enzymes are made up of protein, it catalyses/ speeds up reactions in cells.

Enzymes help break down…

Molecules (digestion/respiration)

What do enzymes rely on?

They rely on collisions of molecules with a specific region of the enzyme called the active site to work.

Enzyme full process recap.

1] The enzyme in the lick with a specific shaped active site.

2] Substrate collides with active site.

3] The substrate is converted into a product which leaves the active site and the unchanged enzyme is free to be used again.

What is the aerobic respiration equation?

Glucose + oxygen = carbon dioxide + water +energy

What does energy release in aerobic respiration?

ATP and heat.

What is the anaerobic respiration equation?

Glucose = lactic acid + energy = less ATP produced

What happens to glucose in anaerobic respiration?

Partial breakdown as no oxygen is avaliable.

What happens to lactic acid in anaerobic respiration?

Toxic lactic acid produced which needs oxygen to be broken down.

Describe oxygen debt.

Oxygen needed to remove lactic acid after exercise was stopped.

Aerobic respiration takes places when…

You are calm.

Anaerobic respiration takes place when…

Your out of breath, which causes lactic acid to be made.