What happens to the oxygen that is used in cellular respiration?

A.  It is converted to carbon dioxide
B.  It is used to make glucose
C.  It is used to make Krebs cycle intermediates
D.  It is reduced to form water
E.  It is converted to acetyl-CoA


D.  It is reduced to form water

Biology & Microbiology

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What therapy targets cancer cells with cytotoxic chemicals, minimizing side-effects?

a. monoclonal antibody therapy b. chemotherapy c. radiation therapy d. surgery

e. adjuvant therapy

Biology & Microbiology

Homo sapiens is the name of a species. Homo is the name of a genus. Hominidae is the name of a family. Primate is the name of an order. Mammal is the name of a:

a) class. b) phylum. c) variety. d) kingdom. e) None of the above is correct.

Biology & Microbiology

Which of the following molecular techniques involves "DNA replication in a tube"?

A) STR B) Gel electrophoresis C) PCR D) Transformation

Biology & Microbiology

In Mendel's experiments with a single trait, the trait that disappeared in the first generation and reappeared in the next generation is called the

A. homozygous trait B. dominant trait C. recessive trait D. heterozygous trait

Biology & Microbiology