Which of the following statements about photosynthesis is false?
A) Photosynthesis involves many redox reactions similar to the electron transport chain used during cellular respiration.
B) Sunlight excites electrons from chlorophyll, which are captured by ATP.
C) In the light reactions, electrons eventually wind up on NADPH.
D) A waste product of the light reactions is O2.
E) During the light reactions, ATP and NADPH are synthesized.
Answer: B
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A person who is homozygous recessive for this defective gene often suffers from severe
pancreatitis, which can be deadly. A treatment that replaces this gene is __________.
a. gene therapy b. genomics c. therapeutic cloning d. a genetic marker
The graphic representation of energy relationships in an ecosystem is a(n) ____
a. Punnett square b. energy flow chart c. energy pyramid d. ecological pyramid e. biomass pyramid
Which statement best describes the cause of decompression sickness?
A) Oxygen molecules are so tightly compressed due to pressure exerted by the water column that they cannot deliver oxygen to the tissues. B) The oxygen molecule expands upon ascent and bursts, therefore causing a lack of oxygen to the tissues. C) Carbon dioxide is driven into the cardiovascular system and causes acidosis. D) Nitrogen gas bubbles form in the blood, joints, and nervous system as pressure decreases from too fast an ascent. E) Carbon dioxide bubbles come out of solution too quickly and burst blood vessels, especially in the brain.
The use of the binomial system of nomenclature was developed by
A. Linnaeus. B. Lamarck. C. Oparin. D. Taxa.