What molecule is common to both C3 photosynthesis and the process of glycolysis?
A) Fructose B) Acetyl CoA C) NADPH D) G3P E) Pyruvate
D
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Which of the following statements is true?
a. When lipids and water are mixed, it is the water molecules that isolate themselves into droplets. b. When lipids and water are mixed, the lipids dissolve and enter into a solution. c. Lipids are nonpolar and will not dissolve in water. d. Polar substances are able to pass through a plasma membrane more readily than nonpolar substances. e. All portions of a phospholipid molecule found in a membrane are classified as nonpolar.
Gross Primary Production =
A. Net Primary Production B. Total Ecosystem Energy C. Respiration D. 1/Net Primary Production E. Net Primary Production + Cellular Respiration
Would you expect motor units to vary in size? If so, which of these structures would probably have the largest ones?
A) No; all motor units are the same size. B) Yes; a motor unit in the thigh to control leg movements would be the largest one. C) Yes; a motor unit that controls eye movements would be the largest one. D) Yes; a motor unit that controls hand movements would be the largest one.
Cancer is usually due to:
A. exposure to chemicals or radiation. B. mutations in stem cells. C. a series of mutations that occur throughout an affected tissue or organ. D. a series of mutations that occur in a single lineage of somatic cells. E. a series of mutations that occur in multiple lineages of germ cells.