BIOLOGY >PRINT UPGRADE<
11th Edition
ISBN: 9780357091586
Author: Solomon
Publisher: CENGAGE L
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Chapter 48.2, Problem 2LO
Summary Introduction
To contrast: The benefits and costs of excreting ammonia, uric acid, or urea.
Introduction: The urinary system is also known as the renal system. It consists of kidneys, ureters, bladder, and urethra. The urinary system is important to eliminate nitrogenous waste such as ammonia, urea, and uric acid out of the body. It also regulates the blood volume, blood pressure, and maintenance of electrolytes.
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Contrast the benefits and costs of excreting each of the following:ammonia, uric acid, or urea.a
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1) Excretion of Metabolic Waste Products, Foreign Chemicals, Drugs, and Hormone Metabolites.
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Chapter 48 Solutions
BIOLOGY >PRINT UPGRADE<
Ch. 48.1 - Prob. 1LOCh. 48.1 - How does osmoregulation contribute to homeostasis?Ch. 48.1 - Prob. 2CCh. 48.2 - Prob. 2LOCh. 48.2 - Prob. 1CCh. 48.2 - What are the benefits of excreting nitrogenous...Ch. 48.3 - Prob. 3LOCh. 48.3 - Compare the structure and function of...Ch. 48.3 - Prob. 1CCh. 48.4 - Relate the function of the vertebrate kidney to...
Ch. 48.4 - Compare adaptations for osmoregulation in...Ch. 48.4 - What type of osmoregulatory challenge is faced by...Ch. 48.4 - Prob. 2CCh. 48.5 - Prob. 7LOCh. 48.5 - Describe (and label on a diagram) the structures...Ch. 48.5 - Prob. 9LOCh. 48.5 - Prob. 10LOCh. 48.5 - Prob. 1CCh. 48.5 - Prob. 2CCh. 48.5 - VISUALIZE Draw a diagram showing the sequence of...Ch. 48.5 - Prob. 4CCh. 48 - Prob. 1TYUCh. 48 - Prob. 2TYUCh. 48 - Test Your Understanding 3 To compensate for fluid...Ch. 48 - The afferent arteriole delivers blood to the (a)...Ch. 48 - Which of the following does not contribute to the...Ch. 48 - Prob. 6TYUCh. 48 - Which of the following does not contribute to the...Ch. 48 - Test Your Understanding 8 Which is not true of...Ch. 48 - Prob. 9TYUCh. 48 - Prob. 10TYUCh. 48 - Arrange the following structures into an accurate...Ch. 48 - Test Your Understanding 12 VISUALIZE Label the...Ch. 48 - Prob. 13TYUCh. 48 - Prob. 14TYUCh. 48 - EVOLUTION LINK The number of protonephridia in a...Ch. 48 - Test Your Understanding 16 EVOLUTION LINK The...Ch. 48 - Test Your Understanding 17 EVOLUTION LINK Although...Ch. 48 - SCIENCE, TECHNOLOGY, AND SOCIETY A person with...
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- Fatty 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_forwardExplain how the kidneys help to maintain the balance of acids and bases in extracellular fluid.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
- Why is excretion important in order to achieve osmotic balance?arrow_forwardThe presence of either protein or glucose in a urinalysis is abnormal, but these two molecules end up in the urine for different reasons. For each of these molecules, briefly describe where in the urine production process (i.e., glomerular filtration, tubular reabsorption or tubular secretion) the problem occurs, and why it might happen.arrow_forwardState the implication of a high value of NPN in blood and urine. What does the amount of urea, ammonia, and creatinine in the urine tell us about renal function? Which food substances can lead to an increased value of NPN in the blood?arrow_forward
- Briefly explain three alterations in body function that occur with chronic renal failure. Why do so many renal diseases go undetected until significant damage has been caused to the kidneys?arrow_forwardA bird just flew overhead and bird droppings landed on your car. The droppings are a white paste. What are the primary components of this excrement? Compare/contrast excretion of ammonia, urea, and uric acid relative to source, energy needed to produce, and toxicity.arrow_forwardThe amount of a substance excreted from the kidneys is calculated by which of the following equations ? filtration 1 + secret - reabsorption filtration - secretion - reabsorption filtration - ( eretionre reabsorption )arrow_forward
- What are the physiological implications of excreting waste nitrogen in the form of urate, urea, or ammonia?arrow_forwardPhysiological processes are dictated by the laws of chemistry and physics. Give one example each of how a law of chemistry and a law of physics are important in understanding the regulation of renal function.arrow_forwardDehydration instigates which of the following processes? Thirst mechanism Decreased sweating Increased urine output Both a and barrow_forward
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