Which of the following in excess irreversibly inhibits the enzyme nitrogenase?

a. O2
b. NO3?
c. N2
d. CO2


Ans: a. O2

Biology & Microbiology

You might also like to view...

Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?

A) lipids B) glycogen C) proteins D) cellulose E) nucleic acids

Biology & Microbiology

The peripheral nervous system is composed of:

A. sensory neurons. B. cranial nerves. C. spinal nerves. D. All of the answer options are correct.

Biology & Microbiology

Long-day plants typically flower in which season?

a. fall b. spring c. summer d. winter

Biology & Microbiology

Spindle fibers are formed during

A. Transcription B. Cell division C. Aerobic respiration D. Protein synthesis E. Photosynthesis

Biology & Microbiology