Which of the following occurs during depolarization?
A) Voltage-gated potassium channels open.
B) Some voltage-gated sodium channels inactivate.
C) Sodium flows into the cell.
D) Both A and C occur.
E) All of the above occur.
Ans: C) Sodium flows into the cell.
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A. is filtered by the spleen. B. is synthesized by the lymphoid organs. C. is excess interstitial fluid. D. is found only when there is a pathological condition that allows it to leak from capillaries. E. All of the choices are correct.
What is the advantage of storing energy as glycogen rather than as lipids?
A) It contains more energy per unit mass. B) It does not prevent physical functions of a cell. C) It can be mobilized very rapidly. D) Both A and B
If your elderly patient's blood calcium level is normal, does that mean the patient does not have osteoporosis? Explain.
What will be an ideal response?
Dna
A) is routinely broken down to provide cellular energy. B) stores genetic information, including instructions for enzymes that synthesize fats and carbohydrates. C) is a protein. D) plays no role in the synthesis of fats.