The ribosomes of Halobacterium require high ________ levels for stability and activity
A) KCl
B) NaCl
C) NaSO4
D) acidic amino acids
Answer: A
Biology & Microbiology
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Flowers are modified
a. leaves. b. stems. c. roots. d. branches. e. terminal buds
Biology & Microbiology
Suppose that acetylcholine binds its receptor on the surface of a muscle cell. What happens next?
a. A sodium gate opens. b. G protein is activated. c. Tyrosine is phosphorylated. d. Tyrosine kinase is activated. e. A neurotransmitter crosses the synapse.
Biology & Microbiology
The amount of energy available to do work is called
A. activation energy. B. free energy. C. potential energy. D. kinetic energy.
Biology & Microbiology
Cervical swab is:
a. acceptable. b. not acceptable.
Biology & Microbiology