Page 8 - ACE YR IGCSE A TOP APPROACH TO BIO

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4 Fig. 4.1 shows six different species of bacteria.

(a) Use the following key to identify the six species of bacteria and name each species in the
blank spaces provided.
Is flagellum present?

Yes No

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More than one flagellum Spiral shape

Yes No Yes No

Flagellum Organism C Organism D Bacteria
attach to one from a
end only Yes chain

Yes No Organism E No

Organism A Organism B Organism F

Fig. 4.1
[6]
(b) State the name of the kingdom that the bacteria in (a) belong to.

[1]

(c) State one similarity and one difference in the structural features to distinguish the cells
of protoctists and bacteria.

Similarity: [1]

Difference: [1]
[Total: 9]

Cambridge IGCSE
TM
6 Ace Your Biology

Chapter 1.indd 6 30/03/2022 3:07 PM