BIO1 - Cells, Exchange and Transport - Cell Membranes

Quick quiz on cell membranes for OCR Biology 'cells, exchange and transport'. Questios lifted from the heinemann purple biology book.

  • Created by: RhysWall
  • Created on: 26-12-11 13:03
Cell surface (plasma) membranes are...
Partially permeable barriers
1 of 8
Glycoproteins differ from glycolipids because...
Glycoproteins have carbohydrates attached to proteins, while glocolipids have carbohydrates attatched to the phospholipid molecules
2 of 8
Water travels across membranes by...
Osmosis down a water potential gradiet
3 of 8
When a cell does not have enough water due to a low water potentail outside the cell, it...
Becomes crenated and might die
4 of 8
Cell signalling is when...
One cell releases a signal molecule, such as a hormone, that fits a complementary shape to a glycoprotein on another cell, stimulating a response
5 of 8
Lipids travel into a cell...
By diffusion between the phospholipids
6 of 8
Endocytosis and exocytosis...
Both require ATP and endocytosis moves substances into the cell, whereas exocytosis moves substances out of the cell.
7 of 8
Active transport...
Involves using ATP to move molecules or ions against their concentration gradient by 'pumping' them.
8 of 8

Other cards in this set

Card 2

Front

Glycoproteins differ from glycolipids because...

Back

Glycoproteins have carbohydrates attached to proteins, while glocolipids have carbohydrates attatched to the phospholipid molecules

Card 3

Front

Water travels across membranes by...

Back

Preview of the front of card 3

Card 4

Front

When a cell does not have enough water due to a low water potentail outside the cell, it...

Back

Preview of the front of card 4

Card 5

Front

Cell signalling is when...

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cellular processes and structure resources »