Question

1) Without prokaryotes...

a) much decomposition in the soil would stop

b) PCR would be much more difficult to do

c) plants would have fewer nutrients to absorb

d) there would be less methane in the world

e) all of the above would occur

2) Which is least likely associated with prokaryotes?

a) nitrogen fixation

b) botulism

c) methane production

d) total global photosynthesis

3) Genetic variation in bacterial populations cannot result from:

a) transduction

b) transformation

c) conjugation

d) mutation

e) meiosis

4) Penicillin is an antibiotic that inhibits the synthesis of peptidoglycan, so which prokaryotes should be most vulnerable to inhibition by penicillin?

a) mycoplasmas

b) gram-positive bacteria

c) archea

d) gram-negative bacteria

e) endospore-bearing bacteria  

5) Which of the following contains a copy of a bacterial chromosome, along with a small amount of dehydrated cytoplasm, within a tough wall?

a) endospore

b) sex pilus

c) flagellum

d) cell wall

e) capsule

6) Adherence to the intestinal lining by a bacterium is due to the possession of:

a) fimbriae

b) pili

c) endospores

d) flagella

e) cilia

Answer 1

1) Without prokaryotes

Answer- E. All of the above

Reason -

a) much decomposition in the soil would stop, as prokaryotes help in decomposition, they are decomposers.

b) PCR would be much more difficult to do, as DNA polymerase, Taq polymerase used in PCR is extracted from Thermus aquaticus.

c) plants would have fewer nutrients to absorb, bacteria like rhizobium help in nitrogen fixation.

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