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IB Biology HL C1.3.16 Hl Triose Phosphate Synthesis Questions

Practise IB Biology HL 1.3.16 by applying triose phosphate synthesis concepts to exam questions.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain that glycerate 3-phosphate is reduced to triose phosphate using ATP energy and hydrogen/electrons from reduced NADP.
  • Interpret GP, TP and RuBP evidence to identify the reduction step and explain how reduced ATP/NADP availability changes it.

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Study C1.3.16 (HL)—Triose phosphate synthesis conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL C1.3.16 Hl Triose Phosphate Synthesis Questions question 1

[Maximum number: 1]

What occurs in the light-independent reactions of photosynthesis?

A

Glycerate 3-phosphate is reduced to triose phosphate.

B

Ribulose bisphosphate is regenerated using reduced NADP.

C

Ribulose bisphosphate is oxidized to two molecules of glycerate 3-phosphate.

D

Both ATP and NADP are used to produce triose phosphate.

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