Question

This is an image of the phospholipid bilayer. Based on what you know about the structure of the phospholipid bilayer, what is the name of the side labeled 1?

A. Hydrophobic side

B. Inner side

C. Hydrophilic side

D. Permeable side

Answer 1

D. Permeable side.

Step-by-step explanation:

Phospholipid bilayer constitutes a part of the structure of the cell membrane. This bilayer consists of a phosphate group and two chains of fatty acids. The phosphate group is polar and hydrophilic because of its negative charges. Its hydrophilic nature shows that it is attracted to water molecules. Also, the lipid tails constitutes the chains of fatty acids are non-polar, hydrophobic and lack ions. The hydrophobic nature of the lipid acids indicates that they repel water molecules.

From the diagram, the part labelled 1 is the phospholipid bilayer and it has a permeable side. This means it allows substances to pass through it.

Answer 2

I think the answer is D (permeable side )since the phospholipid bilayer is permeable and 1 shows the whole of it

Since 2is the hydrophobic side cancelling A

3 is the hydrophilic side also cancelling C

And neither is the answer B because not any of the sides shown between a and b shows that it’s in the inner side