1) Match the microorganism to an example of the type of motility.
a. Magnetospirillum magnetotacticum (twitching, gliding, swimming)
b. Flavobacterium johnsoniae (twitching, gliding, swimming)
c. Escherichia coli (twitching, gliding, swimming)
2) ATP production via substrate level phosphorylationoccurs _______ in the ________of O2. (fill in the blank)
3) Gas vesicles ____________.
| a | protect from cell desication |
| b | confer buoyancy to allow the cell to position itself in the water column for optimal growth condiction (ie., photosynthesis) |
| c | providing a carbon and energy source when environmental carbon is absent |
| d providing a phosphorus source when environmental phosphorus is absent |
Answer
1)
A) Swimming
Explanation :
M. magneticum is an aquatic, motile, Gram-negative bacteria. It contains magnetite filled magnetosomes, that uses flagella for motility, and grows most efficiently between aerobic upper waters and anaerobic lower regions of most bodies of water. In the water, M. magneticum migrates along the geomagnetic field lines, SWIMMING parallel or antiparallel to them in search of its optimum living Environment.
B) Gliding
Explanation :Flavobacterium johnsoniae use a rapid gliding motility. They can glide at speeds up to 10 micrometers per sec
C) twitching
2) ATP production via substrate level phosphorylation occurs ___in cytoplasm ____ in the ____absence____of O2.
3) b) confer buoyancy to allow the cell to position itself in the water column for optimal growth condiction (ie., photosynthesis)
1) Match the microorganism to an example of the type of motility. a. Magnetospirillum magnetotacticum (twitching,...
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