Edexcel IAL Biology 4.2 Recognising plant organelles in electron micrographs

Inspect membrane arrangement and internal structures before naming the organelle, and use a precise process such as photosynthesis rather than a broad cell role.

Exam points

Identify an organelle such as ER or chloroplast from electron-micrograph evidence.
State the recognised organelle's precise function using the labelled cell context.

[Maximum number: 1]

A plant contains several types of cells, tissues and organs.

The photograph shows part of a cell.

Figure for Question 4.2—Recognising plant organelles in EM images question 1 — Edexcel A-Level Biology AS

Which organelle is labelled X ?

chloroplast

endoplasmic reticulum

Golgi apparatus

plasmodesmata

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4.2—Recognising plant organelles in EM images question 1