Question

1. What is the difference between osmosis and diffusion?

A) they are the same in all ways

  B) osmosis only occurs in marine (salt water) organisms

  C) diffusion only occurs in animal cells while osmosis occurs in all cells

D) they are the same except osmosis specifically and only involves water

2. What is the role of cholesterol in cell membranes?

A) cholesterol has no role in cell structure

  B) it stabilises the membrane by adding rigidity to its structure

C) it gives membrane proteins a way to communicate with each other

  D) it kills the cell by hardening it

3. How are chloroplasts similar to bacteria?

A) they both have their own DNA

  B) all of these are correct

C) they both have a cell wall

D) they divide independently of the cell in which they are found

Answer 1

Answer -1

In this question option D (they are same except osmosis specifically and only involve water ) Will be correct.

Because in both diffusion and osmosis transport water high to low concentration but in the osmosis water transport through the semipermeable Memberene.

Answer -- 2

In this question option B ( it stabilizes membrane by the adding rigidity to it's structure ) Will be correct .

Cholesterol occurs only in Eukaryotic cells prokarotic cells do not have cholesterol .

Answer --3

In this question option A and D Will be correct.

Because both have own nucleic acid and both divide independently with main gentic material.