Describe The Structuure And Functon Of The Cell Membrane

Question 1

What is the function of a Cell or Plasma membrane?

Answer 1

It controls the movement of substances both in and out of the cell.

Question 2

What is the main activity that occurs within the cell membrane?

Answer 2

Much of the biological activities occur within the cell membrane.

Question 3

What do cell membrane molecules form?

Answer 3

Cell membrane molecules form pathways allow detection of signals from outside the cell to be transmitted inside.

Question 4

Are cell membranes thick and strong or thin and delicate?

Answer 4

Cell membranes are thin and delicate.

Question 5

How is a cells membrane surface area increased or allow a cell to stretch?

Answer 5

The cell membrane has tiny folds on the surface of the cell that allows this.

Question 6

Can cell membranes be permeable or semi-permeable?

Answer 6

Both.

Question 7

Describe the difference between a permeable and semi-permeable membrane.

Answer 7

A permeable membrane will allow all solutions to pass through it. A semi-permeable membrane only allows certain solutions/ ions etc to pass whilst preventing others.

Question 8

What are the main parts of a cell membrane?

Answer 8

• Plasma membrane. - Cytoplasm - Nucleas or nucleoid.

Question 9

Label a Cell

Answer 9

Question 10

Label a Cell Membrane

Answer 10