Diatoms are algae whose silicon dioxide-containing shells are useful economically as
A. filters.
B. fertilizers.
C. stabilizers.
D. thickeners.
A
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M. catarrhalis may be described as:
a. oxidase-positive. b. a glucose utilizer. c. a major cause of venereal disease. d. often carrying an antiphagocytic capsule.
Which of the following is not a function of the IgG antibodies? a. Bind to pathogens
b. Attack invading bacteria through phagocytosis. c. Activates compliments. d. Neutralize toxins. e. Protection of the fetus.
Which of the following is the rate at which photosynthetic primary producers incorporate energy from the sun into an ecosystem?
a. net solar production b. net primary productivity c. gross primary productivity d. gross solar production
How many net ATP molecules are produced per molecule of glucose broken down during glycolysis?
A. One B. Two C. Four D. 36 E. 38