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Surface area to volume ratio

Question 4

The following equation can be used to estimate the rate of metabolic heat loss per unit body volume of a marine mammal:

\times V^{-1/3}

where:

$V$ is the body volume of the mammal in cubic metres ( $m3\text{m}^3$ ).
$H$ is the rate of metabolic heat loss per unit volume in Watts per cubic metre ( $m−3\text{W m}^{-3}$ ).

A harbor porpoise calf has a body volume of $m30.008\text{ m}^3$ . An adult gray whale has a body volume of $m327\text{ m}^3$ .

Use this equation to calculate how many times greater the rate of metabolic heat loss per unit body volume of the harbor porpoise calf is than the rate of metabolic heat loss per unit body volume of the adult gray whale.

[6]

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

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Question 4

The following equation can be used to estimate the rate of metabolic heat loss per unit body volume of a marine mammal:

\times V^{-1/3}

where:

$V$ is the body volume of the mammal in cubic metres ( $m3\text{m}^3$ ).
$H$ is the rate of metabolic heat loss per unit volume in Watts per cubic metre ( $m−3\text{W m}^{-3}$ ).

A harbor porpoise calf has a body volume of $m30.008\text{ m}^3$ . An adult gray whale has a body volume of $m327\text{ m}^3$ .

[6]

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.