Question: What does a cell look like?

Answer: Function determines appearance

Question: Can you point out the different organelles in a cell?

Answer:

Question: What do all cells have in common?

Answer: They all have a plasma membrane.

Question: What is a plasma membrane?

Answer: Controls passage of material into and out of cell.

It acts as dynamic barrier between internal and external environment.

It also maintains chemical and electrical gradients

This is probably the most important part of the cell.

Question: What is the basic structural unit of the plasma membrane?

Answer: phospholipid bilayer - fluid mosaic model

The grey molecules in the image.

The grey head is composed of a phosphate group.