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MHT-CET Excretory Products and Their Elimination — practice questions

Explore 73 free Excretory Products and Their Elimination questions in MHT-CET Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Excretory Products and Their Elimination questions and exercises with answers

Showing questions 1–30 of 73.

Which nitrogenous waste is the most toxic and needs much water to remove?Read the answer and worked solution →The excretion of ammonia as the main nitrogenous waste is called what?Read the answer and worked solution →Which group of animals is typically ammonotelic?Read the answer and worked solution →Mammals mainly excrete which nitrogenous waste, making them what?Read the answer and worked solution →Which animals are uricotelic?Read the answer and worked solution →In which organ is ammonia converted into urea in ureotelic animals?Read the answer and worked solution →What is the excretory structure of flatworms such as Planaria?Read the answer and worked solution →Which excretory structures are found in earthworms?Read the answer and worked solution →Antennal glands, also called green glands, are excretory organs of which animals?Read the answer and worked solution →What is the main function of protonephridia?Read the answer and worked solution →What is the notch on the inner concave surface of the kidney called?Read the answer and worked solution →The broad funnel shaped space inner to the hilum is called what?Read the answer and worked solution →The medullary pyramids project into which structures?Read the answer and worked solution →What are the extensions of the cortex between the medullary pyramids called?Read the answer and worked solution →The functional unit of the kidney is the what?Read the answer and worked solution →Roughly how many nephrons does each human kidney have?Read the answer and worked solution →A nephron is made of which two parts?Read the answer and worked solution →The glomerulus is a tuft of capillaries formed by which vessel?Read the answer and worked solution →Which vessel carries blood away from the glomerulus?Read the answer and worked solution →What is the double walled cup-like part that encloses the glomerulus?Read the answer and worked solution →Glomerulus together with Bowman's capsule is known as what?Read the answer and worked solution →Which part of the nephron comes right after Bowman's capsule?Read the answer and worked solution →Many distal convoluted tubules open into which structure?Read the answer and worked solution →Which parts of a nephron lie in the cortex of the kidney?Read the answer and worked solution →Nephrons with a very long loop of Henle deep in the medulla are called what?Read the answer and worked solution →Which capillary network surrounds the renal tubule?Read the answer and worked solution →The U-shaped vessel running parallel to Henle's loop is called what?Read the answer and worked solution →In which nephrons is the vasa recta absent or highly reduced?Read the answer and worked solution →Which three processes make up urine formation?Read the answer and worked solution →Where does glomerular filtration take place?Read the answer and worked solution →

Worked practice questions

Which nitrogenous waste is the most toxic and needs much water to remove?

  1. Creatinine
  2. Urea
  3. Uric acid
  4. Ammonia
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Correct answer: D. Ammonia

Ammonia is highly soluble and toxic, so it must be diluted with a large volume of water before it is eliminated.

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The excretion of ammonia as the main nitrogenous waste is called what?

  1. Ureotelism
  2. Uricotelism
  3. Ammonotelism
  4. Aminotelism
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Correct answer: C. Ammonotelism

Animals that excrete mainly ammonia are ammonotelic, and the process is called ammonotelism.

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Which group of animals is typically ammonotelic?

  1. Birds
  2. Reptiles
  3. Mammals
  4. Bony fishes
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Correct answer: D. Bony fishes

Bony fishes lose ammonia by diffusion across the gills as ammonium ions, so they are ammonotelic.

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