Complete the following sentence.
The size of an organism is _____________ proportional to its surface area to volume ratio.
In an experiment using agar blocks immersed in a diffusion solution, the blocks are made up containing sodium hydroxide and a universal indicator solution.
Suggest a suitable solution to immerse these blocks to examine diffusion.
Two organisms are described in Table 1.
Table 1
organism A | organism B | |
surface area / cm2 | 18 970 | 79.8 |
volume / dm3 | 70 | 0.019 |
SA: VOL ratio |
Complete Table 1 by calculating the missing surface area to volume ratios.
Do not include units.
Table 1 from part (c) shows two organisms, A and B.
One of these is a mouse, the other is a human. Identify which animal is represented by A.
Give a reason for your answer.
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