Aerobic and Anaerobic Respiration

Respiration in Humans

Open Ended

Define aerobic respiration.

Draw

Write the symbol equation for aerobic respiration.

Open Ended

State two differences between aerobic respiration and anaerobic respiration.

Multiple Select

What happens during vigorous activity?

(select the correct statements)

• Muscles contract more vigorously.

• Heart rate decreases.

• Rate of breathing increases.

• Only anaerobic respiration takes place.

What happens during vigorous activity?

• Increase in energy demand triggers the increase in breathing and heart rate to supply oxygen.

• During continuous vigorous muscle contractions, anaerobic respiration occurs to supplement aerobic respiration in meeting the increased energy demand. The energy released from both aerobic and anaerobic respiration keeps the muscles contracting.

Multiple Select

How is oxygen debt addressed immediately after the vigorous activity has stopped?

(select the correct statements)

• Faster breathing only

• Deeper and faster breathing

• Heart rate can decrease to allow the body to rest

• Heart rate continues to be fast.

Oxygen Debt

​Amount of oxygen required to remove lactic acid

Fast heart rate: To transport lactic acid to liver via blood for removal

Deep and Fast breathing: To obtain oxygen supply to liver

Multiple Choice

Breathing is the same as respiring.

True or false?

• true

• false