Require water Plants require water for transpiration, metabolism, and photosynthesis. How is water used in photosynthesis?
a) as a substrate for ATP synthase
b) as an electron acceptor
c) to combine with ADP forming ATP
d) to combine with NADP+ to form NADPH
e) as an electron donor
Answer: e) as an electron donor
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In modern terminology, Mendel's heredity "factors" are called
A. DNA. B. chromosomes. C. genes. D. RNA.
A human karyotype showing 22 pairs of autosomes and two X chromosomes would be
a. a normal male. b. a normal female. c. an abnormal male. d. an abnormal female. e. a human whose sex cannot be determined.
What was the average number of spots at the start of your experiments?
a. 1.0 spots b. 2.0 spots c. 3.0 spots d. 4.0 spots
Chemical signals that mediate interactions between two or more members of a given species are called _______________.
A. pheromones B. alarm signals C. hormones D. competitive exclusions