Cyclic electron transport enhances ATP production because __________
A. ADP production increases
B. electrons are transferred from ferredoxin to
plastoquinone
C. proton translocation decreases
D. PSI pumps more protons
E. cyclic electron transport is more energyefficient
than linear electron transport
B
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Which of the events listed below occurs in the light reactions of photosynthesis?
A) NADP is produced. B) NADPH is reduced to NADP+. C) Carbon dioxide is incorporated into PGA. D) ATP is phosphorylated to yield ADP. E) Light is absorbed and funneled to reaction-center chlorophyll a.
The resumption of growth after a period of arrested embryonic development is:
a. senescence b. germination c. imbibition d. parthenogenesis e. thigmotropism
From his work with Streptococcus pneumoniae bacteria, Griffith described the transforming principle. What did this principle prove to be?
a. a polysaccharide capsule b. a phospholipid c. protein d. DNA
Lyme disease becomes chronic because
A) Borrelia changes its surface antigens frequently. B) Borrelia can lie dormant in liver cells. C) the bacterium resists phagocytosis. D) Borrelia is an intracellular parasite of erythrocytes. E) the bacterium resists phagocytosis and "hides" erythrocytes.