13244340
Description
Quiz by John Loughlin, updated more than 1 year ago
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Created by John Loughlin
over 6 years ago
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Question 1
Question
Cell membranes are:
Answer
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Fully permeable
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Selectively permeable
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Impermeable
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Sometimes permeable and sometimes impermeable
Question 2
Question
Osmosis is:
Answer
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Diffusion of gases from high concentration to low concentration
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Diffusion of molecules from a region of low concentration to high concentration across a semi-permeable membrane
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Diffusion of water molecules from a region of high water concentration to low water concentration across a semi-permeable membrane
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Diffusion of molecules from a region of high concentration to low concentration across a semi-permeable membrane
Question 3
Question
What happens to a plant cell when it loses water?
Answer
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It becomes plasmolysed
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It becomes turgid
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It undergoes crenation
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It undergoes mitosis
Question 4
Question
What would happen to a human blood cell if it was placed in a solution that was less concentrated than itself?
Answer
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It would become plasmolysed
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It would become turgid
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It would undergoes crenation
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It would burst
Question 5
Question
What would happen to a human blood cell if it was placed in a solution that was more concentrated than itself?
Answer
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It would become plasmolysed
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It would become turgid
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It would undergo crenation
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It would burst
Question 6
Question
Using your knowledge of osmosis, choose which option best describes what would happen to you if you drank sea water.
Answer
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You would become fully hydrated and your thirst would be quenched
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Nothing would happen
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You would become even more dehydrated as water would move from your blood into your stomach
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After a short time it would increase urine formation by the kidneys
Question 7
Question
Turgor is:
Answer
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Pressure of the cell wall on the cell membrane
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Pressure of the cell contents on the cell wall
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Movement of water into a cell
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Movement of water out of a cell
Question 8
Question
Plasmolysis is:
Answer
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Pressure of the cell wall against the cell membrane
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Pressure of the cell contents on the cell wall
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When the cell membrane has lost water and peels away from the cell wall
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When water moves into the plant cell
Question 9
Question
Which one of the following is unsuitable for use as a semi-permeable membrane to demonstrate osmosis?
Answer
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Dialysis tubing
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Visking tubing
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Cellophane
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Plastic bag
Question 10
Question
Which of the following is not an application of osmosis:
Answer
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Salting food
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Cold smoking food
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Adding sugar to food
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Dehydration of food
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