1. The diagram shows a cross-section through two guard cells of a leaf.
Which labelled structures would also be found in an animal cell?
A W and X
B X and Y
C Y and Z
D Z and W
2. The table shows some structures found in the human body.
Which row shows the correct level of organisation, from the simplest structure to the
most complex?
3. Which structures are found in the cells of all living organisms?
1 cell membrane
2 chloroplast 3 cytoplasm
A 1, 2 and 3
B 1 and 2 only
C 1 and 3 only
D 2 and 3 only
4. In the diagram of the palisade cell, the distance between X and Y is 20 mm. The
actual width of the cell between X and Y is 40 µm.
What is the magnification of the diagram?
A ×200
B ×500
C ×2500
D ×5000
5. The diagram shows a root hair cell.
When does water enter the cell by osmosis?
A when the concentration of solutes outside the cell is greater than inside the cell
B when the concentration of solutes inside and outside the cell are equal
C when the water potential inside the cell is higher than outside the cell
D when the water potential outside the cell is higher than inside the cell
6. The diagram shows a plant cell. In which labelled part of the cell is glucose made?
7. The diagram shows an epidermal cell from an onion plant.
The distance between X and Y on the diagram is 60 mm.
The actual length of the cell between X and Y is 150 μm.
What is the magnification of the cell?
A ×40
B ×250
C ×400
8. What is a leaf?
A a cell
B an organ
C an organ system
D a tissue
D ×2500
9. A student measured the length of a structure using a microscope. The magnification
used was ×250. The image size of the structure was 5.00 mm. What was the actual
length of the structure?
A 1.25 × 103 mm B 1.25 × 103μm
C 2.00 × 101 μm
D 2.00 × 10–5μm
10.Which term describes each structure?
11.(a) Fig. 2.1 is a diagram of a prokaryotic cell.
12.(a) Yeast cells have many structures in common with a plant cell. Fig. 4.1 is a drawing
of a yeast cell.
13.
1.
2.
3.
4. The nucleus in a photograph of a cell measures 3 mm across. If the magnification
in the photograph is × 500, what is the actual size of the nucleus?
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