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level: Exchange of nutrients and wastes

Questions and Answers List

level questions: Exchange of nutrients and wastes

QuestionAnswer
Define the villiTiny hair-like projections that line the inside of the small intestine. They contain blood vessels and help absorb nutrients.
Define the function of digestive enzymesThese proteins speed up chemical reactions that turn nutrients into substances that your digestive tract can absorb.
What is the waste product from the breakdown of proteins?Ammonia
Define a nephronA nephron is the structural and functional unit of the kidney. It regulates the concentration of water and minerals such as sodium by filtering the blood and reabsorbing the important nutrients.
What is the structure of a nephron?Glomerulus, Bowman’s capsule, proximal and distal tubules, Loop of Henle, collecting tubule
Define the function of the Loop of HenleTo recover water and sodium chloride from urine.
Define selective reabsorptionThe process where molecule are reabsorbed from the filtrate as they pass through the nephron.
Define the function of glomerulusThe glomerulus filters your blood
Define the function of the proximal tubulesReabsorption of filtrate in accordance with the needs of homeostasis
Define the function of the distal tubulesRegulating extracellular fluid volume and electrolyte homeostasis.
Define the function of the collecting tubuleTransportation of urine and absorption of water