GMS 6440 Exam Review Questions With 100% Correct Answers 2024

GMS 6440 Exam Review Questions With 100% Correct Answers 2024 Our body secretes about 8L of intestinal juices into the GI tract daily, but only _________ mL of water is excreted in feces. - answer100 mL (the rest is reabsorbed by the digestive system) How many lobes are found in the lungs? - answerThere are 3 lobes in the right lung, while the smaller left lung has 2 lobes, making space in the chest cavity for the heart. Filtrate produced by the glomerulus of the nephron will flow through the nephron tubules in what order? - answerBowman's capsule --> proximal tubule --> loop of Henle --> distal tubule --> collecting duct. What chemical component of the plasma membrane prevents ions from readily and freely moving across the membrane? - answerLipids (phospholipids) Where is the concentration of [K+] greater: the ICF or the ECF? - answerICF; K+ is largely an intracellular ion. Across a cell's plasma membrane, movement of water is (passive/active) and (simple/facilitated). - answerpassive (by osmosis), facilitated (through a channel) Where is the concentration of [Na+] greater: ICF or ECF? - answerECF; Na+ is largely an extracellular ion. Describe secondary active transport of glucose. - answerGlucose is moved into the cell, against its concentration gradient, by symport with Na+ (through the sodium-glucose cotransporter.) This is secondary active transport, and relies on the Na+ gradient being favorable due to actions of other ATPases. The movement of a charged electrolyte across the cell membrane is determined by ______________________, _______________________, and _______________. - answerconcentration gradient (or chemical potential) voltage (or electric potential)