PractiseQuestion bank
Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.
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12 questions
SA-AB-KR-0011 markL1 FoundationCalculatorKrebs
The Krebs cycle takes place in the
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0021 markL2 StandardCalculatorKrebs
In the link reaction, pyruvate is
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0031 markL2 StandardCalculatorKrebs
How many molecules of CO₂ are produced per glucose in the link reaction and Krebs cycle together?
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0051 markL2 StandardCalculatorOxidative phosphorylation
The final electron acceptor in the electron transport chain is
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0061 markL2 StandardCalculatorOxidative phosphorylation
In chemiosmosis, ATP is made as
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0071 markL2 StandardCalculatorOxidative phosphorylation
Energy from electrons in the ETC is used to
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0081 markL2 StandardCalculatorKrebs
Acetyl CoA combines with oxaloacetate (4C) to form
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0101 markL2 StandardCalculatorPractical
DCPIP changes from blue to colourless when it
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0121 markL2 StandardCalculatorOxidative phosphorylation
Cristae increase the area for
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0042 marksL3 ExamCalculatorKrebs
How many reduced NAD are made per glucose in glycolysis, link reaction and Krebs cycle combined?
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0091 markL3 ExamCalculatorOxidative phosphorylation
Cyanide stops ATP production because it
Salam Academy Original Practice · Proposed mark scheme
SA-AB-KR-0112 marksL3 ExamCalculatorPractical
A respirometer drop moves 25 mm in 10 min in a capillary of radius 0.5 mm. Calculate the rate of O₂ uptake (mm³ min⁻¹).
Salam Academy Original Practice · Proposed mark scheme