What is a coenzyme?
A. an organic cofactor that directly participates as one of the substrates in an enzymatic reaction
B. a metal, such as zinc, that participates in enzymatic reactions
C. a term regarding enzymatic reactions that is synonymous with "cofactor"
D. any ligand that binds to a specific site on a protein receptor
E. an inorganic molecule that catalyzes enzymatic reactions
A
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Which of the following is not true of William Harvey?
A. He experimentally demonstrated that blood returns to the heart after passing through the organs. B. He measured cardiac output in a variety of animals. C. He observed capillaries under the microscope. D. He believed blood orbits the body similar to the way planets orbit the sun. E. He wrote about his work in the 1600s.
Imagine that erythrocytes were no longer able to utilize the enzyme carbonic anhydrase. Given its action, a decrease in the pH of arterial blood would be expected.
Answer the following statement true (T) or false (F)
In a hydrolysis reaction:
a. water is a product b. water is a reactant c. water is broken down into hydrogen and oxygen d. the product is larger than either reactant
Bone remodeling may occur
A. as bones grow. B. constantly during a person's lifetime. C. as fractures heal. D. as bones adjust to stress. E. All of the choices are correct.