Which of the following orders would be correct showing the size of structures 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 would be correct to describe a leaf, a root and stem?
Cell
Tissue
Organ
Organ system
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The diagram below shows part of an organism (ciliated epithelium). 
What term would correctly describe 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 a structure to its level of organisation within an organism?
| 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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1 markA student looks at an image of a cross-section of a leaf in his Biology textbook.
The actual thickness of this leaf is 450 µm, but the image in the textbook has a depth of 83 mm.
What would be the correct magnification of the image?
× 5
× 184
× 0.184
× 500
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1 markA 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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A student draws a red blood cell. The drawing is 20mm in diameter.
This red blood cell is 0.008mm in diameter.
What is the magnification of the cell shown in the drawing?
×40
×250
×2500
×40000
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