Respiration GCSE

What is respiration?

• Getting oxygen

• Getting food

• Obtaining oxygen in your cells

• Obtaining energy in your cells

Which of these processes is exothermic?

• Respiration

• Photosynthesis

• Both

• Neither

The usual molecule from your food 'burned' in respiration is...

• Water

• Oxygen

• Glucose

• Lactic acid

Anaerobic respiration means...

• Carrying out respiration without using oxygen

• Carrying out respiration without breathing

• Carrying out respiration without glucose

In animals aerobic respiration produces...

• Glucose

• Oxygen

• Water

• Lactic acid

In animals, anaerobic respiration produces...

• Lactic acid

• Ethanol

• Carbon dioxide

• Water

In plants and microorganisms, anaerobic respiration produces...

• Lactic acid

• Lactic acid and carbon dioxide

• Ethanol and carbon dioxide

• Carbon dioxide and water

After exercise you continue to breathe hard because

• You need to cool down

• You need to get rid of carbon dioxide

• You need to pay off your oxygen debt

Paying off oxygen debt means...

• Getting rid of carbon dioxide

• Getting enough oxygen to your muscles for them to work

• Getting rid of lactic acid

Heart rate means

• How much blood your heart can pump in one beat

• How many times your heart beats in one minute

• How much blood you can pump in one minute