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Table 6 shows information about five different organisms - AQA - GCSE Biology - Question 6 - 2022 - Paper 1

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Table 6 shows information about five different organisms. Table 6 | Organism | Surface area in m² | Volume in m³ | Surface area to volume ratio | |----------|-----... show full transcript

Worked Solution & Example Answer:Table 6 shows information about five different organisms - AQA - GCSE Biology - Question 6 - 2022 - Paper 1

Step 1

Calculate value X in Table 6.

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Answer

To find the surface area to volume ratio (SA:V) for organism C, we use the formula:

SA:V=Surface AreaVolumeSA:V = \frac{Surface\ Area}{Volume}

Substituting the values from Table 6 into the formula:

X=9.96×10−31.35×10−4X = \frac{9.96 \times 10^{-3}}{1.35 \times 10^{-4}}

Calculating this gives:

X≈73.78X \approx 73.78

Rounding this to the nearest whole number results in:

X (nearest whole number) = 74

Step 2

What is the relationship between the size of an organism and its surface area to volume ratio?

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Answer

The relationship is that as the size of an organism increases, the surface area to volume ratio decreases.

Larger organisms have a smaller ratio, which can affect processes such as diffusion. This means that larger organisms may require more specialized structures to efficiently exchange materials with their environment.

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