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Date May 2018 Marks available 1 Reference code 18M.3.SL.TZ1.3
Level Standard level Paper Paper 3 Time zone Time zone 1
Command term Identify Question number 3 Adapted from N/A

Question

The image is a transmission electron micrograph of part of two adjacent pancreatic cells.

Using the scale bar, determine the diameter of the nucleus of the cell on the left, giving the units.

[2]
a.

Deduce the magnification of the image.

[2]
b.

Identify the structure labelled A. 

[1]
c.

Markscheme

answer between 1350 − 1560 nm (accept between 1.35 and 1.56 μm)

Correct answer and units for 2 marks.

a.

allow 27 500 − 32 500 (×/times)

b.

Golgi apparatus

Accept the first answer only.

c.

Examiners report

[N/A]
a.
[N/A]
b.
[N/A]
c.

Syllabus sections

Core » Topic 1: Cell biology » 1.1 Introduction to cells
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Core » Topic 1: Cell biology
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