In the graph above, the point at which the potassium channels open is indicated by the letter
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A) A.
B) B.
C) C.
D) D.
E) E.
C) C.
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Which of the following statements are true of CAM photosynthesis? (Select all correct answer options.)
A. The Calvin cycle is active during the day. B. Organic acids are decarboxylated at night. C. Organic acids are decarboxylated in daylight. D. CO2 capture and fixation occur at different times. E. CO2 capture and fixation occur in different cells.
Assume the Na+ is being transported across a membrane via facilitated diffusion. Which of the following conditions would allow for the most transport of Na+ across the membrane?
Respond to the following statements in reference to the five stages of sperm development listed below. Answers may be used more than once or not at all.
A. This continues to undergo mitosis throughout the reproductive life of the male. B. This represents the product of the first meiotic division. C. This is a diploid mitotic product that then undergoes meiosis. D. Haploid cells resulting from meiosis II of a secondary spermatocyte. E. The male sex cell is fully formed at this stage of development.
What part of the DNA replication process would be most directly affected if a strain of bacteria lacking primase were used to make the cell extracts?
(a) initiation of DNA synthesis (b) Okazaki fragment synthesis (c) leading-strand elongation (d) lagging-strand completion