Red light and phytochrome are involved in which of the following plant growth responses? Check all that apply.
A. inhibition of seed germination
B. detection of crowding by neighboring plants
C. thigmotropic responses
D. elongation of etiolated shoots
Answer: D
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A new antibiotic has been developed. It acts as a noncompetitive inhibitor. How will this antibiotic affect delta G for the enzyme-catalyzed reaction?
A. Delta G will increase B. Delta G will decrease C. Delta G will be unaffected 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 free energy? What other information is related to the question? Choose Answer Do you have all necessary information to analyze how the noncompetitive inhibitor might influence free 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?
A euryhaline species can tolerate:
a. a wide range of temperatures. b. a narrow range of temperatures. c. a wide range of salinities. d. a narrow range of salinities.
Activation of the parasympathetic nervous system
a. causes the pupils of the eye to constrict. b. decreases heart rate. c. decreases glandular secretions. d. contracts sphincters. e. increases the flow of thick saliva.
Which of the following is the most broad-spectrum antibiotic?
a. penicillin b. erythromycin c. acyclovir d. tetracycline