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