iGCSE Biology (0610) 3.1 Diffusion iGCSE Style Questions Paper 3

Question

Fig. 1.1 is a photomicrograph of an animal cell.

(a) Identify the structure in the cell that contains the genetic material.
Label this structure on Fig. 1.1 by stating its name in the space provided and by drawing a
label line to show its location in the cell. [2]
(b) The actual size of the animal cell is much smaller than it appears in the image in Fig. 1.1.
State the piece of laboratory equipment that is used to view animal cells.
…………………………………………………………………………………………………………………………… [1]
(c) Plants contain additional cell structures when compared to animal cells.
State two structures of plant cells that are not present in the cell shown in Fig. 1.1.
1 ………………………………………………………………………………………………………………………………
2 ………………………………………………………………………………………………………………………………
[2]
Fig. 1.2 is a diagram representing the concentration of oxygen inside and outside an animal
cell.

Answer/Explanation

Ans
(a) label: nucleus ;
      label line drawn that ends on the nucleus in the photomicrograph ;
(b) microscope ;
(c) any two from:
      cell wall :
      vacuole ;
      chloroplast ;
(d) (i) membrane ;
      (ii) arrow drawn pointing from outside cell to inside cell ;
      (iii) diffusion ;

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