Neco Model Questions Vol1 2022 Biology Question 1

Practice practical question 1 from the 2022 Neco Model Questions Vol1 Biology examination. This question covers Cell Structure .

Neco Model Questions Vol1 2022 Biology Practical

Topic: Cell Structure

Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • practical

You are given a prepared slide of onion (Allium cepa) epidermal tissue. Using a light microscope with a 40× objective, you observed five cells and recorded their lengths and widths as shown in the table. | Cell | Length (µm) | Width (µm) | |------|-------------|------------| | 1 | 45 | 30 | | 2 | 50 | 32 | | 3 | 48 | 31 | | 4 | 46 | 29 | | 5 | 49 | 30 | Answer the following questions:

Question Parts

( a )

Calculate the average length and the average width of the observed cells.

( b )

Assuming each cell is approximately a rectangular prism whose height equals its width, calculate the average surface‑area‑to‑volume ratio (SA:V) of the cells. Show all steps.

( c )

Based on the SA:V ratio obtained, discuss why a relatively high SA:V ratio is advantageous for plant cells.

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About This Question

This is Neco Model Questions Vol1 2022 Biology Question 1. It is one of the practical questions from the 2022 Neco Model Questions Vol1 Biology examination.

The question covers Cell Structure .

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