A student investigated the effect of size on the movement of molecules.
He cut three different sized cubes from a block of clear agar jelly.
Cube A was 2 × 2 × 2 cm. Cube B was 1 × 1 × 1 cm and cube C was 0.5 × 0.5 × 0.5 cm.
The student wore safety glasses and placed the cubes in a beaker of red dye solution for five minutes.
He then poured the solution into another beaker, washed the surface of the cubes and dried them with blotting paper.
Figure 1 shows what the cubes looked like before and after.
Q: Explain how this experiment can be used to understand the need for transport systems in larger organisms such as humans
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Answer:
abcdefgh is the right answer
Explanation:
abcdefgh is the right answer
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