Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 12, Problem 6CT
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.
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Chapter 12 Solutions
Human Biology (MindTap Course List)
Ch. 12 - Label the parts of this kidney and nephron.Ch. 12 - How does the formation of urine help maintain the...Ch. 12 - Explain what is meant when we talk about...Ch. 12 - Prob. 4RQCh. 12 - Explain how the kidneys help to maintain the...Ch. 12 - Prob. 1SQCh. 12 - The body loses water by way of the ________. a....Ch. 12 - Water and small solutes enter nephrons during...Ch. 12 - Prob. 4SQCh. 12 - Prob. 5SQ
Ch. 12 - Reabsorption depends on _________. a. osmosis...Ch. 12 - Prob. 7SQCh. 12 - Prob. 8SQCh. 12 - Prob. 9SQCh. 12 - Match the following saltwater balance concepts:Ch. 12 - A urinalysis reveals that the patients urine...Ch. 12 - As a person ages, nephron tubules lose some of...Ch. 12 - Fatty tissue holds the kidneys in place. Extremely...Ch. 12 - Licorice is used as a remedy in Chinese...Ch. 12 - Drinking too much water can be a bad thing. If...Ch. 12 - As the text noted, two-thirds of the water and...
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- As a person ages, nephron tubules lose some of their ability to concentrate urine. What is the effect of this change?arrow_forwardWhy is excretion important in order to achieve osmotic balance?arrow_forwardWhich of the following does not contribute to the process of filtration? (a) active transport by epithelial cells lining renal tubules (b) large surface area for filtration (c) low permeability of glomerular capillaries (d) high hydrostatic blood pressure in glomerular capillaries (e) podocytesarrow_forward
- Water and small solutes enter nephrons during ________. a. filtration b. reabsorption c. secretion d. both a and barrow_forwardFigure 41.6 Which of the following statements about the nephron is false? The collecting duct empties into the distal convoluted tubule. The Bowman’s capsule surrounds the glomerulus. The loop of Henle is between the proximal and distal convoluted tubules. The loop of Henle empties into the distal convoluted tubule.arrow_forwardReabsorption depends on _________. a. osmosis across the nephron wall b. active transport of sodium across the nephron wall c. a steep solute concentration gradient d. all of the abovearrow_forward
- Explain how the kidneys help to maintain the balance of acids and bases in extracellular fluid.arrow_forwardFatty tissue holds the kidneys in place. Extremely rapid weight loss may cause this tissue to shrink so that the kidneys slip from their normal position. On rare occasions, the slippage can put a kink in one or both ureters and block urine flow. Suggest what might then happen to the kidneys.arrow_forward
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