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Course: Cambridge AS & A Level Biology 9700 ...
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Cambridge AS & A Level Biology 9700 — Revision Notes

1 · Cell Structure

0/26

2 · Biological Molecules

0/51

3 · Enzymes

0/29

4 · Cell Membranes and Transport

0/41

5 · The Mitotic Cell Cycle

0/21

6 · Nucleic Acids and Protein Synthesis

0/22

7 · Transport in Plants

0/28

8 · Transport in Mammals

0/39

9 · Gas Exchange

0/13

10-11 · Infectious Disease and Immunity

0/43

12 · Energy and Respiration

0/37

13 · Photosynthesis

0/23

14-15 · Homeostasis and Control

0/57

16 · Inherited Change

0/33

17-18 · Selection, Evolution, Classification and Conservation

0/70

19 · Genetic Technology

0/44
Quiz

18.1.2 The Three Domains- Archaea, Bacteria and Eukarya – Exam questions

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  • Questions count: 8
  • Passing grade: B+
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1.
Features of three microorganisms are shown. Which one belongs to the domain Archaea?
Organism Y
Organism X
Organism Z
None of them
2.
The diagram shows Archaea branching closer to Eukarya than to Bacteria. How was this discovered?
Dr Dabour Hub Academy - figure 1
By their appearance under a light microscope
By counting cells
By molecular comparison of DNA and RNA sequences
By their habitat alone
3.
Which of the following does NOT belong to the domain Archaea?
Halophiles
Cyanobacteria
Methanogens
Thermoacidophiles
4.
Which statement best describes Archaea?
Arrangement of groups within larger groups with no overlap.
Prokaryotes with membrane lipids and rRNA different from bacteria, often in extreme habitats.
Naming a species using its genus and species names, e.g. Homo sapiens.
A group of similar organisms that can interbreed to produce fertile offspring.
5.
Archaea were recognised as a separate domain after molecular comparison. True or false?
False
False, by appearance
True
True only for hot springs
6.
Which feature is found in bacteria but not archaea?
Peptidoglycan cell wall
70S ribosomes
Circular DNA
No nucleus
7.

Archaea differ from Bacteria in having

membrane lipids with ether links and no peptidoglycan in the cell wall
a nucleus
80S ribosomes in mitochondria
chloroplasts
8.
Which feature is found in Bacteria but not in Archaea?
Circular chromosome
Ribosomes
Peptidoglycan cell walls
Plasma membrane
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Part of 17-18 · Selection, Evolution, Classification and Conservation — see every lesson and quiz in this unit.
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