The extracellular matrix attached to cells via glycoproteins may then bind to ________ in the plasma membrane
A) dynein
B) collagen
C) integrins
D) polysaccharides
Answer: C
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A new antibiotic has been developed that inhibits the activity of an enzyme by competitive inhibition. What effect will this have on the activation energy of the enzyme-catalyzed reaction?
A. The activation energy required for the reaction in the presence of the antibiotic would be greater than the activation energy required in the absence of the antibiotic B. The activation energy required for the reaction in the presence of the antibiotic would be less than the activation energy required in the absence of the antibiotic C. The activation energy required for the reaction in the presence of the antibiotic will be the same as the activation energy required in the absence of the antibiotic 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 enzymes and activation energy? What factors influence activation energy? What other information is related to the question? Choose Answer Do you have all necessary information to analyze how the antibiotic might influence activation energy? 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?
The fungal-plant root combination is referred to as
a. mycorrhizae. b. symbiosis. c. hyphae. d. mycelia. e. lichen.
The layering of sedimentary deposits is called
a. stratification. b. saponification. c. fossilization. d. petrifaction. e. putrefaction.
Which component of a negative feedback mechanism is responsible for producing the result that counteracts the original environmental change away from homeostasis?
a. an integrator b. a sensor c. an effector d. a stimulus