Which organisms accomplish most of the work of converting atmospheric nitrogen into a form usable to green plants?
A) protists B) bacteria and archaea
C) viruses D) fungi
Answer: B
Biology & Microbiology
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The shaft of a long bone is also known as:
A. the diaphysis. B. the epiphysis. C. trabeculae. D. the long bone wall.
Biology & Microbiology
Allosteric enzymes
A. may bind two substrates. B. are used to bind to other enzymes. C. have an additional binding site that is involved in regulating enzyme activity. D. are twice as fast as single-site enzymes. E. may bind two substrates AND are twice as fast as single-site enzymes.
Biology & Microbiology
Which of the following is associated with rough ER?
A) Plasma membrane B) Ribosomes C) Chlorophyll D) DNA E) Lipid synthesis
Biology & Microbiology
Where is the checkpoint that assesses the DNA for damage?
a. G1 b. G2 c. S d. M
Biology & Microbiology