The major organism used in the microbial production of citric acid is ________.
A. Aspergillus niger
B. Penicillium notatum
C. Lactobacillus delbrueckii
D. Rhizopus nigrificans
Answer: A
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Dideoxynucleotides
A. are useful in nucleic acid sequencing. B. have two additional hydroxyl groups at the 2' and 3' carbons. C. act as chain initiators. D. act as chain terminators. E. are useful in nucleic acid sequencing AND act as chain terminators.
Which sugar is found in breast milk?
a. fructose b. galactose c. glucose d. lactose e. sucrose
Which of the three major lines of defense functions to prevent pathogens from entering the body?
A) phagocytic white blood cells B) skin and mucous membranes C) acquired defenses
Which of the following citric acid cycle enzymes catalyzes substrate-level phosphorylation?
A) isocitrate dehydrogenase B) ?-ketoglutarate dehydrogenase C) succinyl CoA synthetase D) succinate dehydrogenase E) malate dehydrogenase