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Edexcel IAL Biology 5.5 Chloroplast structure and photosynthesis

Label the compartment accurately, connect its membrane or fluid contents to the reaction stage and convert scale or magnification before calculating dimensions.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
A2

Exam points

  • Label chloroplast envelope, grana, thylakoids, lamellae and stroma on diagrams.
  • Relate thylakoid membranes and stroma contents to their photosynthetic reactions.
  • Calculate chloroplast dimensions or areas from image scale and magnification.

5.5—Chloroplast structure and photosynthesis question 1

[Maximum number: 4]

Chloroplasts are involved in both the light-dependent reactions and light-independent reactions of photosynthesis.

Question (a)

(a)

Which row of the table shows where the light-dependent reactions and light-independent reactions take place?
□ A
□ B

[ 1 ]

Question (b)

(b)

The diagram shows the outline of a chloroplast.

Draw three labelled features on this diagram that are found in a chloroplast, other than the stroma and the thylakoid membranes.

Figure for Question (b) — Edexcel A-Level Biology A2

□ C
□ D

Table for Question (b) — Edexcel A-Level Biology A2
Table for Question (b) — Edexcel A-Level Biology A2

.

Figure for Question (b) — Edexcel A-Level Biology A2
[ 3 ]
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