13244340
Descrição
Quiz por John Loughlin, atualizado more than 1 year ago
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Criado por John Loughlin
aproximadamente 6 anos atrás
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Questão 1
Questão
Cell membranes are:
Responda
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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
Questão 2
Questão
Osmosis is:
Responda
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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
Questão 3
Questão
What happens to a plant cell when it loses water?
Responda
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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
Questão 4
Questão
What would happen to a human blood cell if it was placed in a solution that was less concentrated than itself?
Responda
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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
Questão 5
Questão
What would happen to a human blood cell if it was placed in a solution that was more concentrated than itself?
Responda
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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
Questão 6
Questão
Using your knowledge of osmosis, choose which option best describes what would happen to you if you drank sea water.
Responda
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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
Questão 7
Questão
Turgor is:
Responda
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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
Questão 8
Questão
Plasmolysis is:
Responda
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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
Questão 9
Questão
Which one of the following is unsuitable for use as a semi-permeable membrane to demonstrate osmosis?
Responda
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Dialysis tubing
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Visking tubing
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Cellophane
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Plastic bag
Questão 10
Questão
Which of the following is not an application of osmosis:
Responda
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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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