As a research scientist, you measure the amount of ATP and NADPH consumed by the Calvin cycle in 1 hour. You find that 30,000 molecules of ATP were consumed, but only 20,000 molecules of NADPH were consumed. Where did the extra ATP molecules come from?
A) photosystem II
B) photosystem I
C) cyclic electron flow
D) linear electron flow
C
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Which of the following is not part of the lymphatic system?
1.adrenal gland 2.spleen 3.thymus 4.tonsils
In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over
spotted (s). If a red, spotted male was crossed with a black, solid female and all the offspring from several crosses expressed only the dominant traits, the genotype of the female would be a. BB SS. b. Bb SS. c. Bb Ss. d. BB Ss. e. none of these.
Which one of the following is TRUE regarding erythropoietin?
A) It is secreted by the liver in response to rising blood pH. B) It causes the bladder to store increased amounts of urine. C) It is part of a positive feedback loop used to control the amount of hydrogen ion secreted by the kidneys. D) It stimulates the production of red blood cells in the bone marrow. E) It is secreted in response to rising blood oxygen levels.
The excess fluid from the cardiovascular system that enters the lymphatic system is called ________.
A. plasma B. blood C. urine D. lymph E. tissue fluid