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IB Biology SL C1.2 Cell Respiration Questions

Practise IB Biology SL C1.2 by comparing aerobic and anaerobic respiration, ATP use, oxygen uptake, carbon dioxide evidence and respirometer data.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • explain ATP energy transfer, hydrolysis and regeneration
  • relate ATP hydrolysis to active transport, movement and cellular work
  • explain ATP synthesis from ADP and inorganic phosphate in respiration
  • define cellular respiration and relate oxygen, carbon dioxide and ATP across its stages
  • compare human aerobic and anaerobic respiration by site, products and ATP supply
  • interpret variables and rate experiments affecting respiration

Covered syllabus points

C1.2.1—ATP distributes energyC1.2.2—Life processes using ATPC1.2.3—ATP ↔ ADP interconversionsC1.2.4—Cell respiration systemC1.2.5—Anaerobic vs. aerobic respiration in humansC1.2.6—Variables affecting rate

Question 1

[Maximum number: 1]

How do cells capture the energy released by cell respiration?

A

They store it in molecules of carbon dioxide.

B

They produce glucose.

C

The energy is released as pyruvate.

D

They produce ATP.

Question 2

[Maximum number: 2]

This micrograph shows a transverse section of an artery.

x100

x100

Question (a)

(a)

State one process that produces ATP.

[ 1 ]

Question (b)

(b)

Outline the use of ATP.

[ 1 ]

Question 3

[Maximum number: 1]

Which process causes ADP to change to ATP?

A

Hydrolysis

B

Protein synthesis

C

DNA replication

D

Anaerobic cell respiration

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