Which of the following is true of NAD+?
A) It is derived from vitamin E.
B) It serves as an electron source for biological oxidation.
C) It is a coenzyme.
D) It releases an adenosine to become NADH.
E) It represents the reduced form of niacin.
C) It is a coenzyme.
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Which of the following is NOT known to be influenced by plant hormones?
a. patterns of plant growth b. plant cell metabolism c. plant gene expression d. plant growth responses to light e. plant extinction rates
The maximum number of individuals of a species that a given environment can sustain indefinitely defines ____
a. the carrying capacity of the environment b. exponential growth c. the doubling time of a population d. density-independent factors e. density independent factors
The two tissues of the eye with exposed surfaces susceptible to contamination are the ________ and the ________.
A. conjunctiva; lens B. cornea; iris C. conjunctiva; iris D. conjunctiva; cornea E. cornea; lens
You ask to hold the baby and feel a hard mass in the abdomen. Together with your chemical and physical findings, you decide to operate on the small intestine to remove what appears to be a cyst. If you're successful, what will the baby's digestive system be able to do now that it couldn't before?
a. Poop! b. Form pepsin c. Absorb sugars d. Break down fatty acids e. Absorb amino acids f. Break down carbohydrates g. Harbor bacteria