Cells

Question 1

What is the cell (plasma) membrane?

Answer 1

• outer boundary of the cell
• thin, dynamic, bi-layered membrane enclosing everything inside the cell
• controls what enters and leaves the cell

Question 2

What is the function of the cell (plasma) membrane?

Answer 2

• boundary of the cell
• plays a significant role in transportation eg. oxygen, carbon dioxide, sodium and glucose
• contains cell recognition proteins, allowing cells to recognise each other

Question 3

What is cytoplasm?

Answer 3

• gel-like matrix of water enzymes, nutrients, waste, gases and contains cell structures