A cofactor is ______ and examples are _____
A) a molecule that destabilizes substrates; carbonic acid
B) an inorganic molecule that some enzymes require; vitamin B12 and B6
C) a necessary part of some enzymes; copper, iron, and zinc
D) an inorganic molecule that all enzymes require; cholesterol and calcium
C
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The ventral root of a spinal nerve contains
A) cell bodies of motor neurons. B) interneurons. C) axons of motor neurons. D) ventral rami. E) axons of sensory neurons.
Of the following muscles of the thigh which one has its origin on the ilium, sacrum and coccyx and its insertion on the posterior surface of the femur?
A) gluteus maximus B) adductor magnus C) biceps femoris D) gluteus minimus
Thymine is replaced by which nitrogen base in RNA?
A) ribose B) uracil C) guanine D) thymine is not replaced in RNA E) cytosine
Which duct transports bile to and from the gallbladder?
A. Common bile duct B. Hepatic duct C. Hepatopancreatic duct D. Pancreatic duct E. Cystic duct