Respiration

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Aerobic respiration

Subtopic

Aerobic respiration under Respiration for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which word equation correctly represents aerobic respiration?$
A. $\rightarrow$
B. $\rightarrow$
C. $\rightarrow$
D. $\rightarrow$
2.
$What is the primary purpose of respiration in living organisms?$
A. $To produce glucose for storage$
B. $To release energy from food substances$
C. $To absorb oxygen for photosynthesis$
D. $To create heat to warm the environment$
3.
$In which part of a eukaryotic cell does most of the energy release during aerobic respiration occur?$
A. $Ribosomes$
B. $Chloroplasts$
C. $Nucleus$
D. $Mitochondria$

Download the worksheet for Respiration - Aerobic respiration to practice offline. It includes additional chapter-level practice questions.

Anaerobic respiration

Subtopic

Anaerobic respiration under Respiration for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$How does the energy yield of anaerobic respiration compare to aerobic respiration for the same amount of glucose?$
A. $Anaerobic respiration releases much less energy.$
B. $Anaerobic respiration releases exactly the same amount of energy.$
C. $Anaerobic respiration releases significantly more energy.$
D. $Anaerobic respiration releases no energy at all.$
2.
$When yeast cells undergo anaerobic respiration, which of the following gases is released?$
A. $Oxygen$
B. $Nitrogen$
C. $Carbon monoxide$
D. $Carbon dioxide$
3.
$Which substance is produced by human muscle cells during periods of very high intensity exercise when oxygen levels are insufficient?$
A. $Ethanol$
B. $Carbon dioxide$
C. $Lactic acid$
D. $Sucrose$

Download the worksheet for Respiration - Anaerobic respiration to practice offline. It includes additional chapter-level practice questions.

Respiration - IGCSE Grade 11 Biology Notes & Revision | Krit.club