Alternation of generations means that a diploid sporophyte produces haploid spores by meiosis and a haploid gametophyte produces gametes by mitosis.
a. true
b. false
Ans: a. true
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The sporangia (asci) of ascomycetes each ultimately produces:
A. eight diploid spores B. four genetically identical haploid spores C. four haploid spores, each genetically different D. eight identical haploid spores E. eight haploid spores, of which there are two each of four different genetic types
The discovery that ATP is a pain-signaling factor immediately suggested what possible therapeutic approach to alleviate chronic pain?
A. create large intracellular aggregates of ATP B. treat with an ATP receptor antagonist C. block the synthesis of ATP inside cells D. use electric stimulation on pain centers of the brain Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about pain? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A tennis player suffered an injury after a long match. Her elbow was significantly swollen and irritated. She most
likely damaged what structure in her elbow joint? a. ligaments b. bursae c. cartilage d. synovial membrane e. myofibrils
Glycolysis is active when cellular energy levels are _____; the regulatory enzyme, phosphofructokinase, is _____ by ATP
A) low; activated B) low; inhibited C) high; activated D) high; inhibited