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MHT-CET Excretory Products and Their Elimination — practice questions — page 2

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 31–60 of 73.

About how much blood do the kidneys filter per minute?Read the answer and worked solution →What drives filtration of blood in the glomerulus?Read the answer and worked solution →How many layers does the glomerular filtrate pass through?Read the answer and worked solution →What are the epithelial cells of Bowman's capsule called?Read the answer and worked solution →The minute spaces between podocytes are called what?Read the answer and worked solution →Which blood component does NOT normally pass into Bowman's capsule?Read the answer and worked solution →What is the GFR of a healthy person?Read the answer and worked solution →How much glomerular filtrate is formed in a day in a healthy adult?Read the answer and worked solution →Which structure regulates GFR through a built-in mechanism?Read the answer and worked solution →The JGA is formed from modifications in which two structures?Read the answer and worked solution →A fall in GFR activates JG cells to release which substance?Read the answer and worked solution →About what percentage of the glomerular filtrate is reabsorbed?Read the answer and worked solution →Which substances are reabsorbed by active transport in the tubule?Read the answer and worked solution →Which ions are secreted into the filtrate by tubular cells?Read the answer and worked solution →The PCT is lined by which type of epithelium?Read the answer and worked solution →What fraction of electrolytes and water does the PCT reabsorb?Read the answer and worked solution →Which part of the loop of Henle is permeable to water but nearly impermeable to electrolytes?Read the answer and worked solution →The ascending limb of Henle's loop is impermeable to which substance?Read the answer and worked solution →Where does conditional reabsorption of Na+ and water occur?Read the answer and worked solution →Which segment can reabsorb large amounts of water to make concentrated urine?Read the answer and worked solution →The medullary interstitium osmolarity rises from the cortex to about what value?Read the answer and worked solution →Which two substances mainly cause the medullary osmotic gradient?Read the answer and worked solution →Which gland releases ADH, also called vasopressin?Read the answer and worked solution →What is the effect of ADH on the kidney?Read the answer and worked solution →Which receptors detect changes in body fluid volume and ionic concentration?Read the answer and worked solution →What happens to ADH release when body fluid volume increases?Read the answer and worked solution →Renin converts which blood protein into angiotensin I?Read the answer and worked solution →Angiotensin II raises GFR because it is a powerful what?Read the answer and worked solution →What is the release of urine from the bladder called?Read the answer and worked solution →An adult human excretes roughly how much urine per day?Read the answer and worked solution →

Worked practice questions

About how much blood do the kidneys filter per minute?

  1. 250 to 300 ml
  2. 110 to 120 ml
  3. 11 to 12 litres
  4. 1100 to 1200 ml
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Correct answer: D. 1100 to 1200 ml

The kidneys filter about 1100 to 1200 ml of blood per minute, roughly one fifth of the cardiac output of each ventricle.

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What drives filtration of blood in the glomerulus?

  1. Osmosis into tubule
  2. Pumping by podocytes
  3. Glomerular blood pressure
  4. Muscle contraction
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Correct answer: C. Glomerular blood pressure

The pressure of blood in the glomerular capillaries forces fluid through the three filtration layers.

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How many layers does the glomerular filtrate pass through?

  1. One
  2. Two
  3. Three
  4. Five
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Correct answer: C. Three

Filtrate crosses the capillary endothelium, a basement membrane and the epithelium of Bowman's capsule: three layers.

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