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Surface area to volume ratio

Medium

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Question 10

Table 1 shows features of two mammals.

Flying squirrels are gliding mammals; ground squirrels are ground-living mammals.

Table 1

Mammal	Mean body mass / $kg\text{kg}$	Mean lung volume / $cm3\text{cm}^3$
Flying squirrel	$0.15$	$9.45$
Ground squirrel	$0.25$	$4.50$

Calculate how many times the lung volume per unit of body mass of the flying squirrel is greater than that of the ground squirrel.

Give your answer to an appropriate number of significant figures.

Give one suggestion to explain this difference.

[4]

Markscheme

Surface area to volume ratio Questions

A Level
Biology
Surface area to volume ratio

10 exam-style questions on AQA A Level Biology Surface area to volume ratio, covering Surface area to volume ratio. Each one has a worked solution and a mark scheme showing where the marks go.

Surface area to volume ratio

Question bank

Surface area to volume ratio

Medium

1 2 3 4 5 6 7 8 9 10

Question 10

Table 1 shows features of two mammals.

Flying squirrels are gliding mammals; ground squirrels are ground-living mammals.

Table 1

Mammal	Mean body mass / $kg\text{kg}$	Mean lung volume / $cm3\text{cm}^3$
Flying squirrel	$0.15$	$9.45$
Ground squirrel	$0.25$	$4.50$

Calculate how many times the lung volume per unit of body mass of the flying squirrel is greater than that of the ground squirrel.

Give your answer to an appropriate number of significant figures.

Give one suggestion to explain this difference.

[4]

Markscheme

Surface area to volume ratio Questions

A Level
Biology
Surface area to volume ratio

10 exam-style questions on AQA A Level Biology Surface area to volume ratio, covering Surface area to volume ratio. Each one has a worked solution and a mark scheme showing where the marks go.