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Excretory Products and their Elimination Test 52

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Excretory Products and their Elimination Test 52
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  • Question 1
    1 / -0
    In which organ the kidneys stores water?
    Solution

    Urinary bladder is the organ that stores water. When the sac is empty, it just looks like a pear. It is positioned behind its pubic bone.Urine from the kidneys flows down through ureters and finally reaches the bladder.It gets accumulated in the sac which avoids frequent urination and the volume of water it can bear ranges from 400 to 600 ml.  It leaves the body through urethra.

    So, the correct answer is (C)

  • Question 2
    1 / -0
    Which is true about the difference between cortical and juxtamedullary nephrons?
    Solution
    Cortical nephrons have a glomerulus located nearer to the outer parts of the cortex and their loops of Henle are short. Juxtamedullary nephrons have a glomerulus near the junction of the cortex and medulla and their loops of Henle penetrate deep into the medulla.
    So, the correct answer is (B)
  • Question 3
    1 / -0
    Which of the following is most likely to cause an increase in the glomerular filtration rates?
    Solution
    Dilation of the afferent arterioles cause an increase in glomerular filtration rate and renal plasma flow as well, the reason being the vascular resistance is lessened while the hydrostatic pressure is increased when afferent arteriole gets dilated.
    So, the correct option is (B)
  • Question 4
    1 / -0
    What will be the glomerular filtration pressure(GFP) if glomerular hydrostatic pressure(GHP) is $$60$$mm Hg, blood colloidal osmotic pressure, (BCOP) is $$30$$mm Hg and capsular hydrostatic pressure (CHP) is $$20$$mm HP?
    Solution
    GFP= GHP -(BCOP+CHP)
    Then, GFP = 60-(30+20) 
    Hence, GFP= 10mm Hg
  • Question 5
    1 / -0
    Effective filtration in glomerulus is caused due to?
    Solution

    The diameter of afferent arteriole is larger than the efferent arteriole. This increases the volume of blood in glomerulus and increases the filtration rate. This causes the effective filtration pressure which is the total pressure that promotes filtration. 

    Hence, the correct answer is (C)
  • Question 6
    1 / -0
    What will happen if one kidney is removed from the body of a human being?
    Solution
    Correct Option: D
    Explanation:

    • Humans have two kidneys but need only one to survive.
    • People may be born with just one kidney, or have one removed after injury or for a donation.
    • People with one kidney have few or no health problems and have a normal life expectancy.
  • Question 7
    1 / -0
    Which of the following option has the correct pair of nephron parts that maintain pH and ionic balance of blood?
    Solution
    DCT maintains the pH and ionic balance in the blood by reabsorption of Na+, water, HCO 3and selective secretion of H+, K+and NH 3. Collecting duct plays a role in the maintenance of pH and ionic balance of blood by reabsorption of water, and selective secretion of H + and K +  ions.
    Hence, the correct answer is (B)
  • Question 8
    1 / -0
    Which of the following layers is not continuous?
    Solution
    The correct answer is D (Visceral layer of Bowman's capsule)
    The visceral epithelial layer or the inner layer of Bowman's capsule is composed of special type of cells called podocytes. These are arranged closely so as to leave some minute spaces called filtration slits or slit pores.so this is not a continuous layer
  • Question 9
    1 / -0
    The filtrate in the renal tubules comes in contact with blood in the?
  • Question 10
    1 / -0
    The enzyme converting Angiotensin-I to Angiotensin-II is secreted by?
    Solution
    Angiotensin I is produced by the action of renin on a protein called angiotensinogen, which is formed by the liver. Angiotensin enzymes are secreted by the kidneys. Angiotensin I is transformed into angiotensin IIby the action of the enzyme called angiotensin-converting enzyme (ACE).
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