Cell theory & the cell membrane

Question 1

the cell membrane separates the cell cytoplasm from its surroundings and controls the exchange of materials, including nutrients and wastes

Question 2

cells are the structural unit of living things

Question 3

every cell comes from a previous cell that contains hereditary information

Question 4

respond to stimuli
reproduce themselves
grow and develop

Question 5

viruses dont reproduce themselves & grow

Question 6

what are the cell membranes functions

Answer 6

-Making a clear separation between the inter and extracellular environment
- it decides what gets transported in and outside of the cell.

-Enables cells to recognise each other

Question 7

The cell membrane is a fluid mosaic model, which is fluid as phospholipids are constantly moving fluidly, and is a mosaic as proteins are embedded throughout the membrane.

Question 8

what is the structure of the cell membrane

Answer 8

The cell membrane is made up of a phospholipid bilayer. which forms a stable barrier between two aqueous compartments.