Specialised Cells, Tissues & Organs (Cambridge O Level Biology)

Exam Questions

14 mins10 questions
1
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4 marks

Some cells are specialised to perform a particular function.

The boxes on the left show the names of some specialised cells.

The functions of some specialised cells are in the boxes on the right.

Draw four lines to link each specialised cell with its function.

One line has been drawn for you. Draw four additional lines.cie-igcse-2023-specimen-q1d

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2
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2 marks
Fig. 1 is a photomicrograph of Vibrio cholerae, the bacterium that causes cholera.

cie-igcse-2018-febmar-q1c

Fig. 1

(i)

Write the formula that would be used to calculate the actual length of the bacterium (not including the flagellum) in Fig. 1.

[1]

(ii)

The actual length of the bacterium shown in Fig. 1 is 0.0026 mm.

Convert this value to micrometres (µm).

[1]

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