851845
Frage 1
Frage
What is osmosis?
Antworten
-
The diffusion of water from within a cell to outside it
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The diffusion of water from a concentrated solution to a dilute solution
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The diffusion of water from a dilute solution to a concentrated solution
Frage 2
Frage
Which two words describe a situation in which the concentration of water outside the cell is greater than within it?
Antworten
-
Hypertonic
-
Isotonic
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Hypotonic
-
Turgid
-
Flaccid
-
Plasmolysing
Frage 3
Frage
Which two words describe a situation in which the concentration of water outside the cell is equal to within it?
Antworten
-
Hypertonic
-
Isotonic
-
Hypotonic
-
Turgid
-
Flaccid
-
Plasmolysing
Frage 4
Frage
Which two words describe a situation in which the concentration of water outside the cell is less than within it?
Antworten
-
Hypertonic
-
Isotonic
-
Hypotonic
-
Turgid
-
Flaccid
-
Plasmolysing
Frage 5
Frage
True or false? Active transport does not require an input of energy.
Antworten
- True
- False
Frage 6
Frage
True or false? Cells which carry out active transport have transport proteins and lots of mitochondria.
Antworten
- True
- False
Frage 7
Frage
Which of these do plants absorb by active transport?
Antworten
-
Mineral ions
-
Water
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Carbon dioxide
-
Light
Frage 8
Frage
True or false? A sports drink can be easily replicated by adding a little salt to dilute orange squash.
Antworten
- True
- False
Frage 9
Frage
Which part of the lung is responsible for gas exchange?
Antworten
-
Trachea
-
Bronchi
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Bronchioles
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Alveoli
Frage 10
Frage
Which of these are adaptations of alveoli designed to increase the rate of exchange?
Antworten
-
Spherical shape for large surface area
-
Transport proteins in alveolus cells
-
Film of moisture to transport dissolved gases
-
Good blood supply
-
Thin walls (only a single cell thick) to provide a short diffusion pathway
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Lots of mitochondria to raise temperature by respiration for quicker diffusion
Frage 11
Frage
Which of these processes occur during inhalation?
Antworten
-
Diaphragm muscles contract and flatten
-
Liver pushes up diaphragm into domed shape
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External intercostal muscles contract
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Internal intercostal muscles contract
-
Ribcage moves up and out
-
Ribcage moves in and down
-
Thoracic volume increases and pressure decreases
-
Thoracic volume decreases and pressure increases
Frage 12
Frage
Which of these processes occur during exhalation?
Antworten
-
Diaphragm muscles contract and flatten
-
Liver pushes up diaphragm into domed shape
-
External intercostal muscles contract
-
Internal intercostal muscles contract
-
Ribcage moves up and out
-
Ribcage moves in and down
-
Thoracic volume increases and pressure decreases
-
Thoracic volume decreases and pressure increases
Frage 13
Frage
Which type of breathing aid is the iron lung?
Antworten
-
Positive pressure
-
Negative pressure
Frage 14
Frage
True or false? The surface area of the small intestine is about 200-300 square metres.
Antworten
- True
- False
Frage 15
Frage
What is a villus?
Antworten
-
An ancient Roman house
-
The Latin word for "town"
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A finger-like projection in the small intestine
Frage 16
Frage
What is the name given to cells which close and open the stomata?
Antworten
-
Palisade cells
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Guard cells
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Mesophyll cells
Frage 17
Frage
True or false? The surface area of roots is expanded through an absence of root hair cells.
Antworten
- True
- False
Frage 18
Frage
What is the transpiration stream?
Antworten
-
The constant cycle of water from uptake in the roots to evaporation in the leaves
-
A small river which has a larger than average population of algae
-
The name given to flowing water which is unusually clear
Frage 19
Frage
True or false? Wilting is a plant mechanism designed to reduce water loss.
Antworten
- True
- False
Frage 20
Frage
What device can be used to measure the rate of transpiration?
Antworten
-
A potometer
-
A transpirometer
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An osmometer
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