Question

SECTION A Select the best choice 1.Which statement is incorrect? A) The term "homeostasis" describes the maintenance of nearly constant conditions in the body B) In most diseases, homeostatic mechanisms are no longer operating in the body C The body's compensatory mechanisms often lead to deviations from the normal range in the body's functions D) Disease is generally considered to be a state of disrupted homeostasis 2. Which of the following is not a major function of the endoplasmic reticulum (ER)? A) Synthesis of lipids B) Synthesis of proteins C) Providing enzymes that control glycogen breakdown DProviding enzymes that detoxify substances that could damage the cell E) Secretion of proteins synthesized in the cell 3. Which statement about feedback control systems is incorrect? ) Most control systems of the body act by negative feedback B) Positive feedback usually promotes stability in a system C) Generation of nerve actions potentials involves positive feedback Feed-forward control is important in regulating muscle activity ut organelles are transferred to lysosomes by which of the following? A) Autophagosomes B) Granular endoplasmic reticulum C) Agranular endoplasmic reticulum ))Golgi apparatus E) Mitochondria Assume that excess blood is transfused into a patient whose arterial baroreceptors are nonfunctional and whose blood pressure increases from 100 to 150 mm Hg. Then, assu that the same volume of blood is infused into the same patient under conditions in which his arterial baroreceptors me are functioning normally and blood pressure increases from 100 to 125 mm Hg. What is the approximate feedback "gain" of the arterial baroreceptors in this patient when they are functioning normally? A)-1.0 B) -2.0 C) 0.0 ED +2.0 6. Which of the following solutions, when infused intravenously, would result in an increase in extr acellular fluid volume, a decrease in intracellular fluid volume, and an increase in total body water after osmotic equilib: 'um? 1 Liter of 0.9% sodium chloride (NaCl) solution B) 1 Liter of 0.45% NaCl solution C) 1 Liter of 3% NaCl solution D) 1 Liter of 5% dextrose solution E) 1 Liter of pure water

Answer 1

1. A. The term homeostasis describes maintenance of nearly constant conditions in the body.

Rest all are incorrect description.

2. C. Provide enzymes that control glycogen breakdown

Rest all involve the fundamental function

3. B. Positive feedback usually promote stability in a system

It causes instability

4. A. Autophagosome