Gene duplications in Bacillus subtilis have resulted in a large gene family that encodes ________ transporters.
What will be an ideal response?
ABC
ATP-binding-cassette
ATP binding cassette
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The enzyme succinate dehydrogenase is located in the inner mitochondrial membrane and is directly
involved in what two steps of cellular respiration?
a. glycolysis and pyruvate oxidation b. pyruvate oxidation and citric acid cycle c. citric acid cycle and electron transfer system d. electron transfer system and glycolysis e. electron transfer system and fermentation
In some cases, inhibitors or activators of
enzyme-catalyzed reactions act by a. binding to the substrates. b. affecting the supply of ATP. c. reversibly binding to an enzyme's allosteric site. d. reducing or increasing the concentration of enzymes. e. binding to the products
Intercalated disks are gap junctions between cells of:
a. smooth muscle tissue. b. skeletal muscle tissue. c. cardiac muscle tissue. d. both skeletal and cardiac muscle tissue. e. all forms of muscle tissue.
After 24 hours incubation of a facultative anaerobic bacterium in the 'Lysine Iron Agar', Yellow Butt can be interpreted as
A. The pH decreased B. The pH did not change during the incubation C. The pH is increased following an initial decrease D. The pH is decreased following an initial increase E. The pH change is irrelevant