The carbon dioxide acceptor in the Calvin-Benson
cycle is
a. phosphoglycerate (PGA).
b. ribulose bisphosphate (RuBP).
c. phosphoglyceraldehyde (PGAL).
d. O2.
e. NADP+.
Answer: b
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Lactose is composed of _____________ joined by a _____________ linkage
A. glucose and galactose; glycosidic B. two glucoses; peptide C. glucose and fructose; glycosidic D. two amino acids; peptide E. two galactoses; glycosidic
Although a useful test in the past, the particle agglutination assay for the detection of H. influenzae, type b, capsular polysaccharide antigen is no longer reliable because of:
a. insufficiently high concentration of the organisms in clinical infections. b. a lack of sensitivity and specificity of the test procedure. c. the frequent use of antimicrobial therapy before collecting the specimen. d. the increased use of H. influenzae, type b, vaccination.
The enzyme polynucleotide phosphorylase is capable of generating a random assembly of ribonucleotides
Indicate whether the statement is true or false
Approximately half of known animal carcinogens can be detected by the Ames test.
Answer the following statement true (T) or false (F)