Question

100 Points Help

Fill in the gaps with a correct word.

1. The plasma membrane is composed primarily of _______________________. Other components include ________________, _______________ and _____________.

2. Each phospholipid consists of:
A. A polar head that is or “water loving”.
B. Two non-polar hydrocarbon tails that are ________________ or “water fearing”.

3. The phospholipids arrange themselves into a __________________ (or two layers).

Answer 1

1. The plasma membrane is composed primarily of phospholipids Other components include embedded protein, carbohydrates and Cholesterol.

• It helps to maintain the shape of the cell and protect it from outer substances and works as a transportation conductor

2. Each phospholipid consists of:

A. A polar head that is Hydrophilic or “water loving”.

B. Two non-polar hydrocarbon tails that are hydrophobic or “water fearing”.

• They help in transporting the fluid outside and inside the cell

3. The phospholipids arrange themselves into a phospholipids and sterols (or two layers).

• Phospholipids works as an emulsifiers and sterols help in growth development of the cell