Respiration

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

Aerobic respiration

Subtopic

Aerobic respiration under Respiration for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following is the balanced chemical equation for aerobic respiration?$
A. $C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O$
B. $6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$
C. $C_6H_{12}O_6 \rightarrow 2C_3H_6O_3$
D. $C_6H_{12}O_6 \rightarrow 2C_2H_5OH + 2CO_2$
2.
$What is the primary biological purpose of aerobic respiration?$
A. $To produce glucose for storage$
B. $To release energy from food molecules for cellular use$
C. $To remove excess oxygen from the atmosphere$
D. $To synthesize proteins from amino acids$
3.
$In which part of a eukaryotic cell does the majority of aerobic respiration take place?$
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 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$Where in a cell does the process of anaerobic respiration take place?$
A. $Mitochondria$
B. $Ribosomes$
C. $Chloroplasts$
D. $Cytoplasm$
2.
$Compared to aerobic respiration, how much energy is released per molecule of glucose during anaerobic respiration?$
A. $The same amount of energy$
B. $Significantly less energy$
C. $Significantly more energy$
D. $No energy is released$
3.
$Which of the following occurs during anaerobic respiration in human muscle cells?$
A. $Glucose is broken down into lactic acid$
B. $Ethanol is produced to provide energy$
C. $Carbon dioxide is the only waste product$
D. $Oxygen is used to produce large amounts of ATP$

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

Respiration - IGCSE Grade 12 Biology Notes & Revision | Krit.club