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