Which of the following correctly shows the listed structures in order of size from biggest to smallest?
chromosome → red blood cell → stomach → gene → nucleus
stomach → red blood cell → gene → chromosome
stomach → red blood cell → nucleus → chromosome → gene
gene → chromosome → red blood cell → stomach
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Which of the following terms correctly describes a leaf, a root and a stem?
Cell
Tissue
Organ
Organ system
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The diagram below shows part of an organism.
Which term correctly describes the level of organisation of the structure in the diagram above?
Cell
Organelle
Organ
Organ system
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Which description of the liver below is correct?
The liver is a cell, containing several tissues, which forms part of the digestive system.
The liver is an organ, containing several systems, which forms part of the digestive tissue
The liver is an organ, containing several tissues, which forms part of the digestive system.
The liver is a cell, containing several systems, which forms part of the digestive system.
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Which row of the table below correctly matches each structure to its level of organisation?
| tissue | organ | system | |
| A |
phloem |
small intestine |
digestive |
| B |
red blood cell |
xylem |
stomach |
| C |
small intestine |
sperm |
digestive |
| D |
root hair |
leaf |
heart |
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Which row of the table below correctly matches functions to components in a root hair cell?
| cell wall | cell membrane | mitochondria | |
| A | support | active transport | energy release |
| B | energy release | active transport | nutrition |
| C | support | active transport | nutrition |
| D | active transport | support | energy release |
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The salivary glands contain cells which are responsible for producing salivary amylase, a digestive enzyme.
Which organelles would be present in large numbers in cells of the salivary glands?
mitochondria and nuclei
nuclei and ribosomes
mitochondria and vacuoles
mitochondria and ribosomes
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Which row of the table below correctly identifies the structures present in a bacterial cell?
| cell membrane | cell wall | chromosome | nucleus | |
| A | X | ✓ | X | X |
| B | ✓ | ✓ | ✓ | X |
| C | ✓ | ✓ | X | X |
| D | ✓ | X | X | ✓ |
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Extended Tier Only
Which row of the table below correctly describes a spongy mesophyll cell?
| contains chloroplasts for photosynthesis | loses water by transpiration | ideal surface area for gas exchange | |
| A | X | ✔ | ✔ |
| B | ✔ | ✔ | X |
| C | ✔ | ✔ | ✔ |
| D | ✔ | X | X |
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1 markExtended Tier Only
An image of a leaf cross-section is printed in a biology textbook. The actual thickness of such a leaf is 450 µm, and the image in the textbook has a height of 83 mm.
What would be the correct magnification of the image?
× 5
× 184
× 0.184
× 500
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1 markExtended Tier Only
A student looks at the image below in a textbook. The image is 43 mm wide and has been magnified 2500 times.
What is the actual width of the cell?
0.0172 µm
1.72 mm
58.1 mm
17.2 µm
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Eukaryotic cells contain mitochondria (a mitochondrion is shown below).
Which diagram below correctly shows the position of mitochondria in a plant cell?
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The image below shows a palisade mesophyll cell found in the leaves of plants.
Which row of the table below correctly identifies the structures labelled on the cell in the image above?
| X | Y | Z | |
| A | mitochondrion | vacuole | nucleus |
| B | chloroplast | nucleus | vacuole |
| C | chloroplast | vacuole | nucleus |
| D | mitochondrion | nucleus | vacuole |
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