Neco 2020 Biology Question 31

Practice objective / multiple choice question 31 from the 2020 Neco Biology examination.

Neco 2020 Biology Objective / Multiple Choice Medium Difficulty
Question 31 NECO • 2020 • BIOLOGY • objective

A spherical animal cell has a radius of 5 µm. Its surface area is given by \(4\pi r^{2}\) and its volume by \(\frac{4}{3}\pi r^{3}\). If the cell swells uniformly to a radius of 8 µm, by what factor does the surface‑area‑to‑volume ratio change? Express your answer as a fraction in lowest terms.

Answer Options

A. 4/7
B. 8/5
Correct Answer C. 5/8
D. 5/13
Correct Answer
C
Correct Option:
5/8

About This Question

This is Neco 2020 Biology Question 31. It is one of the objective questions from the 2020 Neco Biology examination.

Difficulty level: Medium .

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