In osmosis:
A. water moves from extracellular to intracellular compartments.
B. water moves from a region of high water concentration to a region of low water concentration.
C. solutes move from a region of low water concentration to a region of high water concentration.
D. solutes move from a region of high solute concentration to a region of low solute concentration.
E. plasma membranes must be impermeable to water.
B. water moves from a region of high water concentration to a region of low water concentration.
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A patient is brought to the hospital after experiencing acute fatigue. The patient’s condition deteriorates rapidly during testing, despite alarmingly high blood glucose levels, and he has no history of diabetes. Initial tests also show low levels of glucose-6-phosphate. The results of further diagnostic testing are not available yet, but based on what you know, which hypothesis could explain the patient’s condition?
a. The patient has a severe phosphate deficiency, preventing phosphorylation of ADP molecules. b. The patient has inherited a mutated form of gene that regulates phosphofructokinase production. c. The patient has been exposed to a substance that binds to hexokinase and inhibits its function. d. The patient has depleted acetyl CoA, which has caused his citric acid cycle to come to a complete stop.
Which of the following do not get infected by viruses?
A. Plants B. Animals C. Bacteria D. Animals, plants and bacteria can all be infected by viruses.
Bowman's capsule, the start of the tubular part of a nephron, is located in the _____
a. renal cortex c. renal pelvis b. renal medulla d. renal artery
Which of the following produces ATP via the electron transport chain?
A. aerobic respiration B. anaerobic respiratio C. fermentatio D. glycolysis E. Photosynthesis A. A, B and C B. C, D and E C. A, B and E D. A, B, and D E. A, B, C, and E