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Edexcel IAL Biology 4.1 Plant cell structure and ultrastructure

Use membrane position, stored material and internal features to identify the structure, then compare its presence or role with animal and prokaryotic cells.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
AS

Exam points

  • Identify chloroplasts, amyloplasts, tonoplasts and plasmodesmata in diagrams.
  • Relate plant-cell structures to photosynthesis, storage, transport or support.
  • Complete presence-or-absence comparisons for plant, animal and prokaryotic cells.

4.1—Plant cell structure and ultrastructure question 1

[Maximum number: 3]

Female mosquitoes feed on the blood of other animals to promote the development of their eggs. During this process, infected mosquitoes can transmit the Plasmodium parasite.

The Plasmodium parasite causes the disease malaria.
The photograph shows a female Anopheles mosquito.

Figure for Question 4.1—Plant cell structure and ultrastructure question 1 — Edexcel A-Level Biology AS
Figure for Question 4.1—Plant cell structure and ultrastructure question 1 — Edexcel A-Level Biology AS

The fungus Metarhizium pingshaense infects Anopheles mosquitoes.

A student drew a labelled diagram of a fungal cell that was dividing.

Figure for Question 4.1—Plant cell structure and ultrastructure question 1 — Edexcel A-Level Biology AS

Give three differences in ultrastructure between this cell and a cell taken from the root of a plant.

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