15. Plant Cells and water

Questions on plant cells and water

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  • Created by: Jade
  • Created on: 22-03-12 09:52
What is water potential?
Water potential is a measure of the tendency of water molecules to diffuse from one place to another.
1 of 9
Water will always move from a region of ____ water potential to a region of _____ water potential. The water potential of pure water is ____.
Higher, lower, zero
2 of 9
The water potential in plant cells is always ________.
Negative
3 of 9
Once the plant cell is full of water is described to be ______.
Turgid
4 of 9
What is the pressure potential?
When the water inside the cell starts to exert pressure on the cell wall
5 of 9
As the pressure potential builds up, it reduces the ______ of water.
Influx
6 of 9
If a plant cell is placed in a solution with a nvery low water potential (a concentrated salt solution) it will lose water by osmosis - this is because the water potential of the cell is ___than the water potential of the solution.
Higher
7 of 9
So water diffuses down its potential gradient out of the cell. The cell loses it turgidity. If water loss continues, the cytoplasm is called incipent __________.
Plasmolysis
8 of 9
If water continues to leave the cell, the plasma membrane will lose contact with the wall - a condition known as _________.
Lysis
9 of 9

Other cards in this set

Card 2

Front

Water will always move from a region of ____ water potential to a region of _____ water potential. The water potential of pure water is ____.

Back

Higher, lower, zero

Card 3

Front

The water potential in plant cells is always ________.

Back

Preview of the front of card 3

Card 4

Front

Once the plant cell is full of water is described to be ______.

Back

Preview of the front of card 4

Card 5

Front

What is the pressure potential?

Back

Preview of the front of card 5
View more cards

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