Which of the following can be used as a final electron acceptor for aerobic respiration?

a. Carbonate ion
b. Molecular oxygen
c. Nitrate ion, sulfate ion and carbonate ion can all be used as a final electron acceptor.
d. Nitrate ion
e. Sulfate ion


Answer: b. Molecular oxygen

Biology & Microbiology

You might also like to view...

Which of the following antibiotics specifically inhibits DNA synthesis?

A. Tetracycline B. Quinolones C. Polymyxin B D. Gentamycin

Biology & Microbiology

Place the steps of biofilm formation in the correct order. _____ Surface (substratum) is preconditioned by environmental molecules. _____ Quorum sensing and the establishment of the extracellular matrix commences as microbes attach more stably. _____ Biofilm matures and some microorganisms escape to the planktonic state. _____ Microbes attach and detach from the preconditioned surface.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Meningoencephalitis and African sleeping sickness are both caused by protozoans

Indicate whether this statement is TRUE or FALSE.

Biology & Microbiology

Which of the following would be a good choice to accurately measure 1.0ml? (Choose all that apply)

> 50ml serological pipette > 1.0ml transfer pipette > P-20 micropipette > 5ml graduated cylinder a small beaker > 1.0ml serological pipette > P-1000 micropipette > 1L graduated cylinder > P-200 micropipette

Biology & Microbiology