Single-celled eukaryotic cells belong to which of the following domains?
A. Fungi
B. Eukarya
C. Animalia
D. Plantae
Answer: B
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A biochemist wants to control the initial substrate-level phosphorylation that occurs in the tracheal cells of grasshoppers once glucose has crossed the plasma membrane. He has access to the following inhibitors: Rotenone - an electron transport chain inhibitor, Oligomycin - an ATP synthase inhibitor, and TLN-232, an inhibitor of glycolysis. Which inhibitor should he use to slow down initial substrate-level phosphorylation that occurs once glucose has crossed the plasma membrane?
A. Rotenone B. Oligomycin C. TLN-232 D. None of these inhibitors would be effective in preventing substrate-level phosphorylation 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 substrate-level phosphorylation during cellular respiration? What other information is related to the question? Choose Answer Do you have all the information needed to determine which inhibitor would have the biggest impact on substrate-level phosphorylation? 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?
Thomas Malthus proposed that
a. species gradually improved over generations because of an inherent drive toward perfection b. humans reproduce beyond the capacity of their environment to sustain them. c. the food supply and populations multiplied at the same rate. d. artificial selection was the key to evolution. e. natural selection was the key to evolution.
The sac fungi are members of the
a. Ascomycetes. b. Basidiomycetes. c. Glomeromycetes. d. Chytrids.. e. Zygomycetes.
Which molecules recognize specific codons and transport amino acids?
A. DNA B. mRNA C. rRNA D. tRNA