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When filtrate moves through the ____ limb of loop of henle, NaCl leaves the filtrate through ____ transport
fill in the blank
(A) descending, active
(B) ascending, active
(C) ascending, passive
(D) descending, passive
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- As the text noted, two-thirds of the water and solutes that the body reclaims by reabsorption in nephrons occurs in the proximal tubule. Proximal tubule cells have large numbers of mitochondria and demand a great deal of oxygen. Explain why.The mammalian kidney contains an immense network of nephrons that functions to conserve water by producing urine that is hyperosmotic compared to other body fluids. Describe in detail how the transport epithelia of the nephron and collecting duct are able to use transport mechanisms to process the filtrate as it moves through the vessels and produce a hyperosmotic filtrate.The renal handling of a novel drug is being studied. When the drug is present in the blood, it is filtered into the Bowman’s capsule and secreted via transport proteins in the renal tubules, but it is NOT reabsorbed. The lines on the following graph represent filtration, secretion and excretion rates of this drug at various plasma concentrations. For the three lines shown (labeled A-C) identify which line represents filtration, which line represents secretion, and which line represents excretion Explain how you determined this.
- Draw a schematic diagram showing the flow of water and salts in the proximal tubule of the kidney. In this diagram, put the lumen on the left side of the diagram and the extracellular fluids on the right side of the diagram. Indicate where the lumen is, where the extracellular fluid is, where the apical portion of the cell is, and show the location of the proteins that are responsible for the movement of water and salts and glucose reabsorption in this area of the kidneyThe mammalian kidney contains an immense network of nephrons that functions to conserve water by producing urine that is hyperosmotic compared to other body fluids. Explain how the transport epithelia of the nephron and collecting duct are able to use transport mechanisms to process the filtrate as it moves through the vessels and produce a hyperosmotic filtrate.In a short essay (100–150 words), compare how membrane structures in the loop of Henle and collecting duct of the mammalian kidney enable water to be recovered from filtrate in the process of osmoregulation.
- This diagram illustrates which of the following Choose from the following: (A) secretion of hydrogen via Na+/H+ exchange ions by the proximal convoluted tubule (B) reabsorption of bicarbonate ions by intercalated cells (A) in the collecting duct (C) secretion of H+ by H+K+/ATPase pumps in the intercalated cells (A) in the collecting duct (D) A and B (E) all of the aboveIdentify the incorrect statement about reabsorption at the nephron (A) water becomes more salty as it travels down the loop of henle(B) water gets reabsorbed through osmosis(C) aquaporins allow for the passage of water(D) the Osm is 1200 prior to entering the loop of henleSodium ion reabsorption from the filtrate into peritubular blood across the cells of this component of the nephron (marked by the black asterisk) Choose from the following: (A) is regulated by the binding of the hormone aldosterone (B) is not regulated by any hormone, but is determined by sodium ion concentration and filtrate flow
- in a healthy adult which of the following will pass through the filtration membrane and become part of the filtrate? choose all that apply: glucose, proteins, water, amino acids.Identify the mechanism of transport used in this location across the simple cuboidal cell of the proximal convoluted tubule Choose from the following: (A) facilitated diffusion (B) simple diffusion (C) active transport (D) secondary active transportThe question is: "How would an inhibitor of protein transporters of toxic compounds that target the distal region of the tube affect the excretion process?" This is in regards to the 4 steps of excretion through tubules (filtration, tubular reabsorption, tubular secretion, excretion). I know transport proteins move specific molecules & ions into or out of the tubule, but I'm not sure how to answer this question exactly. Thanks! Please answer asap and in short and content should not be palgarised please
