Biology 2.1.5 Cells in solutions of different water potentials

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A level Biology (2.1.5 Biological membranes) Flashcards on Biology 2.1.5 Cells in solutions of different water potentials, created by Sam Gunnell on 08/03/2019.
Sam Gunnell
Flashcards by Sam Gunnell, updated more than 1 year ago
Sam Gunnell
Created by Sam Gunnell over 5 years ago
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Question Answer
Does a concentrated sugar solution have a high or low water potential? Lower
What happens to a cell placed in a concentrated sugar solution (in terms of movement of water)? Water moves from an area of higher water potential inside the cell to an an area of lower water potential outside the cell (water moves out the cell)
What happens as a result of animal cells losing water? The cell volume decreases The inside of the cells concentration increases
What happens as a result of the cells contents concentration increasing? Metabollic reactions effected
What happens to a cell placed in a solution with higher water potential (in terms of movement of water)? Water moves from an area of higher water potential outside the cell to an area of lower water potential inside the cell (water moves into the cell)
What happens as a result of water moving into an animal cell? Pressure inside the cell increases Lysis
What is crenation? Does it happen to animal or plant cells? When an animal cell shrivels
What is lysis? Does it happen to animal or plant cells? When animal cells burst
Why do animal cells burst and plant cells dont? Plant cells have a cell wall to prevent bursting and the animals fragile plamsa membrane can't handle the higher pressure in the animal cells
What happens to plant cells when they lose water? Cell volume decreases Plasmolysis
What is plasmolysis? When the cytoplasm and plasma membrane pull away from the cell wall
What happens to a plant cell when water moves into the cell? The cell volume increases Cell contents push on the cell wall Cell becomes tirgid
What's happened to the cell when it becomes tirgid? The cell swells
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