Which of the following is true concerning oxygen in regards to aerobic respiration?
A) It directly receives electrons and protons from NAD+ and FAD.
B) It is the final electron acceptor in aerobic respiration.
C) It is the only substrate of aerobic respiration.
D) It directly transfers electrons and protons to NAD+ and FAD.
E) It transports electrons to the mitochondrion.
B
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A person who gets hit on the back of the head might suffer injury to which of these bones?
A. Temporal B. Nasal C. Sphenoid D. Zygomatic E. Occipital
Glucagon secretion is stimulated by:
A. hypoglycemia and parasympathetic nerve firing. B. hyperglycemia and a high concentration of epinephrine. C. high plasma epinephrine and high plasma incretin concentrations. D. hypoglycemia and high plasma epinephrine concentration. E. hyperglycemia and high plasma incretin concentration.
Which of the following combining forms means primitive?
A. phag/o B. hemat/o C. blast/o D. erythr/o
Which tissues have little to no functional regenerative capacity?
a. cardiac muscle and nervous tissue in the brain and spinal cord b. epithelial tissue, bones, and areolar connective tissue c. cardiac and smooth muscle d. nervous tissue and smooth muscle