A solution that contains an excess of protons is(are)
A. hydroxide ions.
B. an acid.
C. a base.
D. the pH.
B. an acid.
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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?
Which organism is used to initiate the fermentation of cabbage to make sauerkraut?
A. Propionibacterium B. Saccharomyces cerevisiae C. Streptococcus lactis D. Spirulina E. Leuconostoc mesenteroides
In the phalarope, or wadepiper bird, the male is unusual in playing the larger parenting role -- he performs all the egg incubation and chick care. What unusual behavior might you predict for the female of the species?
A. The female provides sperm to fertilize the male's eggs. B. The female is part of a large harem of females, under the domain of a single male. C. The females compete to mate with the males, who choose among them. D. The females have dull, brown coloring that keeps them well-camouflaged. 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 traditional roles of mate selection and parental investments? 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? Reflection: 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 genetic cross was performed with two pea plants both with green, wrinkled seeds. Of the resulting offspring, 75% had green, wrinkled seeds and 25% had green, smooth seeds (W = wrinkled; w = smooth)
With regard to wrinkled versus smooth seeds, the parental plants must have been ________. Fill in the blank with correct word.