Which molecule in the Calvin cycle is used to synthesize starch and sucrose?
A) 3-phosphoglycerate
B) glyceraldehyde-3-phosphate
C) ribulose-1,5-bisphosphate
D) 1,3-bisphosphoglycerate
E) ribulose-5-phosphate
Answer: B
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Nerve gas has its effect by causing the
accumulation of ___ in the synaptic cleft.
a. dopamine b. serotonin c. acetylcholine d. epinephrin e. an endorphin
What is a transgenic organism?
a. an organism with multiple copies of the same gene b. an organism that has genes from another species c. an organism that does not use DNA to specify proteins d. an organism that has had its entire genome sequenced e. an organism that has been DNA profiled
Several epidemic microbial diseases of earlier centuries incurred high death rates because they resulted in severe dehydration due to vomiting and diarrhea. Today they are usually not fatal because we have developed which of the following?
A) antiviral medications that are efficient and work well with most viruses B) intravenous feeding techniques C) medications to slow blood loss D) hydrating drinks with high concentrations of salts and glucose
Which species is most likely to become extinct?
A) The jack-in-the-pulpit, found throughout the eastern United States and Canada B) The northeastern pygmy shrew, found throughout New Jersey and Pennsylvania C) The white tiger beetle, found throughout several mid-Atlantic U.S. states D) Kirtland's warbler, which breeds in only a small area of Michigan E) Carp, found throughout Europe, the United States, and Canada