24. liter. The solutions are separated by a selectively permeable membrane. If t

Question

24. liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move. Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per A. move by simple diffusion from solution A to solutionB B. move by osmosis from solution B to solution A C. move by active transport from solution B to solution A D. move by filtration from solution A to solution B E. There will be no movement of water. 25 A woman is stabbed in the abdomen with an ice pick near the midline of the abdomen. The pick passes through the abdominal body wall, into and through the stomach, pierces the diaphragm, and finally stops in the heart. Select the membranes the ice pick had to penetrate (they do not have to be listed in order and please select only those which had to be pierced) 1) parietal pericardium 2) parietal pleura 3) parietal peritoneum- 4) visceral pericardium 5) visceral pleura 6) visceral peritoneum A. 1, 2,3, 4 B. 1,3, 5, 6 C. 1,2,3 D. 1,2,4, 5 E. 1,3,4, 6 26. Active transport A. follows osmotic pressure gradients. B. can move substances along their concentration gradient C. does not requires metabolic energy ATP)

Explanation / Answer

24. B

Explanation: Diffusion of water called osmosis. Water moves from its own higher concentration to lower concentration (or lower concentration of solution to higher concentration of solution) hence it will move from B to A

25. E

Explanation: Pleura is covering of lungs, as per statement there is no penetration in lungs; so the options with parietal and visceral pleura (2 and 5) will be eliminated. So the E will be the correct answer.

26. E

Explanation: Active transport always requires energy, i.e. ATP

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