Which food is most likely to contain all essential amino acids?
A) beef
B) carrots
C) corn
D) rice
A
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All of the following are coenzymes except
A) NAD. B) NADP. C) FAD. D) coenzyme A. E) pyruvate dehydrogenase.
Which of the following serves as a switching mechanism in the photoperiodic response in plants?
a. phytochrome b. auxin c. cryptochrome d. calmodulin e. phytoalexin
The notochord has a similar function to the
a. nervous system. b. spinal cord. c. skeletal system. d. skin system. e. muscle system.
Which of the following statements concerning the chemical structure of an antibody is FALSE?
A) Antibodies are formed of four polypeptide chains. B) Antibodies have two long peptide chains known as heavy chains. C) Antibodies have two short peptide chains known as light chains. D) The stem and arm are connected by a hinge. E) The heavy and light chains are connected by hydrogen bonds.