Cell Membranes #3

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  • Created by: vimal__
  • Created on: 20-11-17 09:01
What is the most basic cell membrane?
What do they do?
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Cell membranes are partially permeable. What does this mean?
Name the three main ways substances can move across cell membranes.
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There can be membranes within cells as well. Give an example of a membrane within a cell, and what it encloses.
Some of the membranes within cells are partially permeable. Give an example of a partially permeable membrane within a cell.
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What are most cell membrane composed of?
Cell membranes have a continuous, double layer. What is this double layer called?
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Cell-surface membrane (Plasma membrane).
Cell-surface membranes surround cells. They are a barrier between the cell and its environment controlling which substances enter and leave the cell.
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They let some molecules through but not others.
Diffusion, osmosis and active transport.
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The substances needed for respiration are kept together inside a mitochondrion by the membrane surrounding the mitochondrion.
RNA leaves the nucleus via the nuclear envelope. DNA is too large to pass through the partially permeable membrane so it stays in the nucleus.
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Phospholipids, proteins and carbohydrates.
Phospholipid bilayer.
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Other cards in this set

Card 2

Front

Cell membranes are partially permeable. What does this mean?

Back

Name the three main ways substances can move across cell membranes.

Card 3

Front

There can be membranes within cells as well. Give an example of a membrane within a cell, and what it encloses.

Back

Preview of the front of card 3

Card 4

Front

What are most cell membrane composed of?

Back

Preview of the front of card 4

Card 5

Front

Cell-surface membrane (Plasma membrane).

Back

Preview of the front of card 5
View more cards

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