IB Biology HL C1.3.14 Hl Thylakoids As Light Dependent Systems Questions

Use a thylakoid cross-section to identify Photosystem II, Photosystem I and the thylakoid space, following electron movement between the photosystems.

Exam points

Identify Photosystem II, Photosystem I and the thylakoid space in a labelled thylakoid diagram, using electron-flow direction to distinguish the photosystems.

[Maximum number: 1]

The diagram shows a section through a thylakoid. Electrons move from X to Y .

Figure for Question IB Biology HL C1.3.14 Hl Thylakoids As Light Dependent Systems Questions question 1 — IB Biology HL

What do the letters X, Y and Z represent?

photosystem I

photosystem II

thylakoid space

photosystem II

photosystem I

thylakoid space

ATP synthase

photosystem II

stroma

photosystem II

ATP synthase

stroma

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IB Biology HL C1.3.14 Hl Thylakoids As Light Dependent Systems Questions question 1