Concept explainers
Introduction:
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Anatomy and Physiology
- Indicate whether the following sentences is True or False 1) Urea is the major nitrogen-containing metabolic product of protein catabolism in humans, accounting for > 75% of the nonprotein nitrogen eventually excreted 2) Dialysis is the process of separating substances in solution based on size and the difference in their diffusion rates through a semipermeable membranearrow_forwardWhat is the correct term for the removal of toxic waste materials of metabolism from an organism? defecation egestion excretion urinationarrow_forwardIn general terms, explain the role in insects of the malpighian tubules and rectum in conserving water, ions, and amino acids and removing nitrogen waste.arrow_forward
- Explain why kidney failure could result in the accumulation of nitrogen-containing waste products in the blood.arrow_forwardDescribe the effects of starvation on urea production.arrow_forwardDuring the first week of a prolonged diet there is a relativelyrapid weight loss. In addition to water loss, what other factorcontributes to this phenomenon?arrow_forward
- explain the metabolic source of ammonia and how thebody disposes of it.arrow_forwardDiscuss six issues that suggestively influence the uptake of mineral elementsarrow_forward1) Anemia, hemorrhage, and chronic obstructive pulmonary disease can all cause metabolic acidosis. The best explanation is that the lack of oxygen causes: A) a decrease in insulin that, in turn, increases anaerobic glycolysis in the brain B) a decrease in oxidative phosphorylation so the cells have to rely upon anaerobic glycolysis C) a decrease in the oxidation of tyrosine to epinephrine which decreases gluconeogenesis in muscle D) a decrease in the removal of CO2 from the blood. The resulting decrease in pH causes an increase in glycolysis in most cells E) an increase in glycolysis in red blood cells 2) Which of the following is NOT TRUE following β-oxidation in the liver? a) The formation of propionyl CoA could lead to the production of glucose from B-oxidation b) The formation of acetyl CoA could lead to ketone bodies synthesis c) Acetyl CoA could be converted to pyruvate allowing for the production of glucose d) Acetyl CoA could be used for the synthesis of HMG CoA e) Acetyl CoA…arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning