Neco 2025 Biology Question 1

Practice practical question 1 from the 2025 Neco Biology examination. This question covers Cell Structure .

Neco 2025 Biology Practical

Topic: Cell Structure

Question 1 NECO • 2025 • BIOLOGY • practical

You are given a fresh onion (Allium cepa) and a compound microscope. Perform a temporary wet‑mount preparation of an onion epidermal peel and answer the following.

( a )

Outline the step‑by‑step procedure for preparing the wet‑mount slide.

( b )

Identify and label three distinct cell structures that can be seen in the epidermal cells. For each structure, state its principal function.

( c )

State two precautions that must be observed to avoid artefacts during the observation.

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This is Neco 2025 Biology Question 1. It is one of the practical questions from the 2025 Neco Biology examination.

The question covers Cell Structure .

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