13244340
Descripción
Test por John Loughlin, actualizado hace más de 1 año
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Creado por John Loughlin
hace alrededor de 6 años
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Pregunta 1
Pregunta
Cell membranes are:
Respuesta
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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
Pregunta 2
Pregunta
Osmosis is:
Respuesta
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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
Pregunta 3
Pregunta
What happens to a plant cell when it loses water?
Respuesta
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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
Pregunta 4
Pregunta
What would happen to a human blood cell if it was placed in a solution that was less concentrated than itself?
Respuesta
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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
Pregunta 5
Pregunta
What would happen to a human blood cell if it was placed in a solution that was more concentrated than itself?
Respuesta
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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
Pregunta 6
Pregunta
Using your knowledge of osmosis, choose which option best describes what would happen to you if you drank sea water.
Respuesta
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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
Pregunta 7
Pregunta
Turgor is:
Respuesta
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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
Pregunta 8
Pregunta
Plasmolysis is:
Respuesta
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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
Pregunta 9
Pregunta
Which one of the following is unsuitable for use as a semi-permeable membrane to demonstrate osmosis?
Respuesta
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Dialysis tubing
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Visking tubing
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Cellophane
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Plastic bag
Pregunta 10
Pregunta
Which of the following is not an application of osmosis:
Respuesta
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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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