Consumption of vitamin C
a. enhances absorption of iron.
b. limits absorption of iron.
c. does not affect absorption of iron.
a. enhances absorption of iron.
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Which statement about bilateral symmetry is FALSE?
a. Bilateral symmetry evolved in cnidarians. b. Bilateral animals tend to have cephalization. c. Bilaterally symmetrical animals has three axes. d. Bilateral symmetry animals have a mesoderm. e. Animals with bilateral symmetry have dorsal and ventral surfaces.
At 4:00 p.m. a closed flask of sterile broth is inoculated with 10,000 cells. The lag phase lasts 1 hour. At 9:00 p.m. the culture enters stationary phase with a population of approximately 41 million cells. At what time is the population half maximal?
A. 7:20 p.m. B. 6:30 p.m. C. 8:20 p.m. D. 8:40 p.m.
The fatty acid tails of unsaturated fats incorporate one or more __________.
A) single covalent bonds B) double covalent bonds
Which of the following statements describes the mitochondrial outer membrane?
(a) It is permeable to molecules with molecular mass as high as 5000 daltons. (b) It contains transporters for ATP molecules. (c) It contains proteins that are released during apoptosis. (d) It contains enzymes required for the oxidation of fatty acids.