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.
$Which process occurs in a living plant cell during both the day and the night?$
A. $Photosynthesis$
B. $Aerobic respiration$
C. $Transpiration (only when light is present)$
D. $Pollination$
2.
$Energy in a glucose molecule is stored in its:$
A. $Nucleus$
B. $Chemical bonds$
C. $Electrons only$
D. $Protons only$
3.
$In aerobic respiration, the glucose molecule is:$
A. $Reduced$
B. $Oxidized$
C. $Synthesized$
D. $Electrolyzed$

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.
$What is the source of energy released during anaerobic respiration?$
A. $Chemical bonds in glucose$
B. $The surrounding heat$
C. $Oxygen atoms$
D. $Light from the sun$
2.
$Which of these is the most accurate description of lactic acid?$
A. $A product of plant respiration$
B. $A product of human anaerobic respiration$
C. $The main fuel for aerobic respiration$
D. $A gas released by yeast$
3.
$In yeast, which molecule is broken down to release energy anaerobically?$
A. $Ethanol$
B. $Carbon dioxide$
C. $Glucose$
D. $Lactic acid$

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