Waec Model Questions Vol1 2017 Biology Question 1

Practice practical question 1 from the 2017 Waec Model Questions Vol1 Biology examination. This question covers Cell Structure .

Waec Model Questions Vol1 2017 Biology Practical
Topic: Cell Structure
Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • practical

You are provided with a fresh leaf peel of Elodea and a compound microscope equipped with a 10× ocular lens and a 40× objective lens. The microscope is set up on a laboratory bench and a clean glass slide and cover slip are available.

Question Parts

( a )
State the sequence of steps you would follow to prepare the slide and obtain a clear view of the cells.
( b )
Draw a labelled diagram of the observed cell showing the nucleus, cell wall, plasma membrane, chloroplast and vacuole. Indicate the relative size of each structure.
( c )
Briefly state the function of each labelled structure.
( d )
Mention two possible sources of error that could affect the observation and suggest one way to minimise each error.

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This is Waec Model Questions Vol1 2017 Biology Question 1. It is one of the practical questions from the 2017 Waec Model Questions Vol1 Biology examination.

The question covers Cell Structure .

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