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4 marksCell Structure and Functions

CAPE Biology Unit 1 · 2008 · Paper 2 · Question 1(d)(ii)

Figure 2 shows photographs of the same plant cells seen (a) with a light microscope and (b) with an electron microscope. Both are shown at the same magnification of about x1500.

Comment on the advantages and limitations of using a light microscope as compared to an electron microscope to examine cells or tissues.

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Other parts of this question

  1. 1(a)Identify the structures labelled A to H.[4 marks]
  2. 1(b)In the space provided, draw a plan diagram to show the distribution of the different types of tissues in Box A in Figure 1. Make your drawing the actual size…[4 marks]
  3. 1(c)If the photograph in Figure 1 has been magnified 100 times, what is the actual width of the specimen from X1 to X2?[1 mark]
  4. 1(d)(i)Account for the difference in clarity between the two photographs.[2 marks]

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