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- 1. Multiple Choice
Peptidoglycan is
found in the chromosomes of most bacteria.
composed of long polysaccharides crosslinked with short polypeptides.
composed of long polypeptides held together by disulfide bridges.
a unique combination of protein lipid and fat.
- 2. Multiple Choice
Bacteria can obtain their nutrition by
photosynthesis.
chemosynthesis.
heterotrophy.
all of the above
- 3. Multiple Choice
Which of the following makes archaebacteria different from other monerans?
absence of peptidoglycan
two chromosomes
existence of organelles
aerobic
- 4. Multiple Choice
The methane-producing bacteria belong to
archaebacteria
prokaryotes
eukaryotes
urkaryotes
- 5. Multiple Choice
Listed below are descriptions of bacterial shape. Select the exception.
coccus
bacillus
pili
spiral
- 6. Multiple Choice
Which of the following allow the bacteria to join together to transfer genes?
flagella
pores
connecting channels
pili
- 7. Multiple Choice
Which of the following statements about prokaryotes is correct?
Bacterial cells conjugate to mutually exchange genetic material
Their genetic material is confined within a nuclear envelope
They divide by binary fission, without mitosis or meiosis
The persistence of bacteria throughout evolutionary time is due to genetic similarity
- 8. Multiple Choice
What is the function of a bacterium's capsule?
Adhesion
Protection
DNA containment
Protein synthesis
- 9. Multiple Choice
Which of the following statements is not true?
Archaea and bacteria have different membrane lipids.
Both archaea and bacteria generally lack membrane-enclosed organelles
The cell walls of archaea lack peptidoglycan
Only bacteria have histones associated with DNA.
- 10. Multiple Choice
Plant-like photosynthesis that releases O2 occurs in
cyanobacteria
chlamydias
archaea
actinomycetes
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