Download Chapter 3

Chapter 3 – Test Yourself
Questions
1. Prokaryotic cells have a much simpler structure than eukaryotes, lacking internal
___________ and a true ___________.
2. Most bacterial cells are rod-shaped (___________), spherical (___________) or
curved (___________).
3. Many bacteria commonly carry extrachromosomal pieces of DNA called ___________,
which are able to ___________ independently of the bacterial chromosome.
4. Protein synthesis takes place at ___________.
5. The main components of cell membranes are ___________ and ___________
6. Gram-positive cell walls contain a higher percentage of ___________ than those of Gramnegative cells.
7. Many bacteria have long, hair-like structures called ___________ projecting from the cell
wall. These are used for ___________.
8. The DNA of eukaryotes is organised into chromosomes and associated with proteins
called ___________.
9. In eukaryotic cells, extranuclear DNA is also found in ___________ and ___________.
10. Eukaryotic ribosomes may be found associated with the ___________ ___________ or free
in the cytoplasm.
11. The Golgi apparatus ___________ and ___________ newly synthesised substances.
12. ___________ are the site of energy generation in eukaryotic cells. In prokaryotic cells, some
of these reactions take place at the ___________ ___________.
13. The photosynthetic membranes of chloroplasts are called ___________.
14. The cell walls of algae are mostly made up of ___________.
15. The structure of eukaryotic flagella is more complex than that of prokaryotes, comprising an
arrangement of ___________ made of ___________.
Essential Microbiology, Second Edition. Stuart Hogg.
© 2013 John Wiley & Sons, Ltd. Published 2013 by John Wiley & Sons, Ltd.
Chapter 3 – Test Yourself
Answers
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
organelles, nucleus
ribosomes
plasmids, replicate
ribosomes
phospholipids, protein
peptidoglycan
flagella, locomotion
histones
chloroplasts, mitochondria
endoplasmic reticulum
packaging, transport
mitochondria, plasma membrane
thylakoids
cellulose
microtubules, tubulin
Essential Microbiology, Second Edition. Stuart Hogg.
© 2013 John Wiley & Sons, Ltd. Published 2013 by John Wiley & Sons, Ltd.