Concept explainers
Introduction:
Want to see the full answer?
Check out a sample textbook solutionChapter 23 Solutions
Anatomy & Physiology: The Unity of Form and Function
- Which of the following correctly lists the three forms of nitrogenous waste in order from least to most toxic?  A. uric acid, ammonia, urea  B. urea, uric acid, ammonia  C. uric acid, urea, ammonia  D. urea, ammonia, uric acid  E. ammonia, urea, uric acidarrow_forwardWhich statement about nitrogenous wastes is true?   ammonia cannot be concentrated as much as urea and uric acid because it is more toxic   some vertebrates are able to avoid producing nitrogenous wastes by using only anaerobic respiration   most vertebrates that produce urea excrete the urea as salt crystals that have precipitated out of solution to conserve water   many saurapsids excrete their nitrogenous wastes as nitric oxide   All of these are correctarrow_forwardThe two organs that are capable of creating urea are ___ and ___ A. Liver, skeletal muscle B. Liver, kidneys C. Kidneys, adrenal glands D. Brain, skeletal musclesarrow_forward
- 1)Which structure would a molecule of urea pass through first? A) proximal convoluted tubule B) glomerulus C) descending and thin ascending limbs of the nephron loop D) collecting duct E) ureterarrow_forwardA friend who is enthusiastic about health foods and organic gardening asks you whether urea is organic or chemical. how do you reply to his question?arrow_forwardExplain why drinking saltwater causes diarrhea and dehydrationarrow_forward
- Name the process of removal of nitrogenous wastes from the body.arrow_forwardProduction of any sort of nitrogenous waste other than ammonia costs energy. Name at least three distinctly different advantages an animal might gain by investing in production of urea or uric acid.arrow_forwardDefine the following terms:a. urea cycleb. Krebs bicyclec. carbamoyl phosphated. ureotelic organisme. ornithine translocasearrow_forward