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- Multiple ChoicePlease save your changes before editing any questions.
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.
- Multiple ChoicePlease save your changes before editing any questions.
Bacteria can obtain their nutrition by
photosynthesis.
chemosynthesis.
heterotrophy.
all of the above
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following makes archaebacteria different from other monerans?
absence of peptidoglycan
two chromosomes
existence of organelles
aerobic
- Multiple ChoicePlease save your changes before editing any questions.
The methane-producing bacteria belong to
archaebacteria
prokaryotes
eukaryotes
urkaryotes
- Multiple ChoicePlease save your changes before editing any questions.
Listed below are descriptions of bacterial shape. Select the exception.
coccus
bacillus
pili
spiral
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following allow the bacteria to join together to transfer genes?
flagella
pores
connecting channels
pili
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
What is the function of a bacterium's capsule?
Adhesion
Protection
DNA containment
Protein synthesis
- Multiple ChoicePlease save your changes before editing any questions.
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.
- Multiple ChoicePlease save your changes before editing any questions.
Plant-like photosynthesis that releases O2 occurs in
cyanobacteria
chlamydias
archaea
actinomycetes