When __________ is uncovered and myosin can bind to it, contraction of a muscle can occur when ATP is utilized.
A. actin
B. myosin
C. tropomyosin
D. troponin
A. actin
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Some aerobic bacteria lack the Entner-Doudoroff and Embden-Meyerhoff pathways and instead use the pentose phosphate pathway for glycolysis.
Answer the following statement true (T) or false (F)
If you wanted a grass plant to bend to the right, where would you want to apply auxin?
A. on the left side of the tip of the grass B. on the left side of the grass, a few centimeters down from the tip C. on the right side of the grass, a few centimeters down from the tip D. on the right side of the tip of the grass
In its youth, a pet parrot was owned by someone who kept the wings clipped and never allowed it to fly. Later in life, the new owner let the feathers grow and let the parrot fly around the house. But the parrot kept knocking over lamps and crashing into walls. "Wow," said the owner, "I guess parrots are just too clumsy to fly around a house without destroying everything." What is an alternative explanation?
A. In nature, parrots have much more room to fly, and do not have to navigate around delicate home decor. B. Since the parrot was not able to practice flying during the critical period for flight development, the brain circuits for accurate flying were not able to develop. C. The parrot just needs more practice flying -- although it did not get to fly when young, this should not affect later ability. D. The critical period for flying development in the brain has just now begun with the bird's first attempt. In a few weeks the critical period will end, so it must practice during this time. 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 behaviors in an adult parrot based on how it was raised? 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 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?
An amino acid is to a protein as a ________ is to a nucleic acid.
A. glycerol B. cellulose C. nucleotide D. fatty acid E. glucose