Excretory Products And Their Elimination — DPP 1

20 NEET questions from Excretory Products And Their Elimination, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

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1
Vasa recta is absent or highly reduced in;
  1. A Cortical nephrons
  2. B Medullary nephrons
  3. C Juxtamedullary nephrons
  4. D Juxtaglomerular nephrons
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Correct answer: A

2
Urine is always excretory fluid except in;
  1. A mammals and terrestrial amphibians.
  2. B marine fishes and terrestrial amphibians.
  3. C birds and reptiles.
  4. D marine fishes and mammals.
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Correct answer: C

3
Region of nephron found in renal medulla is;
  1. A Malpighian corpuscle
  2. B Convoluted tubule
  3. C Distal convoluted tubule
  4. D Henle's loop
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Correct answer: D

4
Which of the following is not a ammonotelic organism?
  1. A Aquatic amphibians
  2. B Mammals
  3. C Aquatic insects
  4. D Many bony fishes
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Correct answer: B

5
Which blood vessel takes blood away from kidney?
  1. A Renal artery
  2. B Renal vein
  3. C Afferent arteriole
  4. D Efferent arteriole
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Correct answer: B

6
Terrestrial amphibians and marine fishes are;
  1. A Ammonotelic
  2. B Ureotelic
  3. C Uricotelic
  4. D Both (1) and (2)
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Correct answer: B

7
Average weight of human kidney is about;
  1. A 1.2 to 1.9 kg
  2. B 1.2 to 1.7 kg
  3. C 0.12 to 0.15 kg
  4. D 0.12 to 0.17 kg
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Correct answer: D

8
In majority of nephrons, the loop of Henle is too short and extends only very little into the medulla. Such nephrons are called;
  1. A Cortical nephrons
  2. B Medullary nephrons
  3. C Juxtamedullary nephrons
  4. D Juxtaglomerular nephrons
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Correct answer: A

9
Length, width and thickness of the adult human kidney are approximately;
  1. A $12 - 16 \mathrm {~cm} , 10 - 12 \mathrm {~cm}$ and $4 - 6 \mathrm {~cm}$ respectively.
  2. B $10 - 12 \mathrm {~cm} , 5 - 7 \mathrm {~cm}$ and $2 - 3 \mathrm {~cm}$ respectively.
  3. C $10 - 12 \mathrm {~cm} , 2 - 3 \mathrm {~cm}$ and $5 - 7 \mathrm {~cm}$ respectively.
  4. D $12 - 16 \mathrm {~cm} , 5 - 7 \mathrm {~cm}$ and $2 - 3 \mathrm {~cm}$ respectively.
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Correct answer: B

10
Protonephridia or flame cells or solenocytes are the excretory structures in;
  1. A Platyhelminthes
  2. B Rotifers and some annelids
  3. C Cephalochordates
  4. D All of these
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Correct answer: D

11
As compared to efferent arteriole, the afferent arteriole of kidney is;
  1. A shorter and wider
  2. B shorter and narrower.
  3. C longer and wider
  4. D longer and narrower.
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Correct answer: A

12
Renal tubule begins with the;
  1. A Afferent arteriole
  2. B Efferent arteriole
  3. C Bowman's capsule
  4. D PCT
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Correct answer: C

13
Part of nephron involved in active reabsorption of sodium is;
  1. A PCT
  2. B Descending limb of loop of Henle
  3. C Bowman's capsule
  4. D Both (1) and (2)
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Correct answer: A

14
In some of the nephrons, the loop of Henle is very long and runs deep into the medulla. These nephrons are called;
  1. A Cortical nephrons
  2. B Medullary nephrons
  3. C Juxtaglomerular nephrons
  4. D All of these
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Correct answer: C

15
Shape of Henle's loop and vasa recta is;
  1. A ' $C$ ' shaped and ' $U$ ' shaped respectively.
  2. B ' $U$ ' shaped and ' $C$ ' shaped respectively.
  3. C hairpin shaped and ' $U$ ' shaped respectively.
  4. D 'U' shaped and hairpin shaped respectively. (Arjuna NEET Zoology M-2)
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Correct answer: C

16
Each nephron has;
  1. A three parts-PCT, DCT and HL
  2. B three parts-Glomerulus, PCT and DCT
  3. C two parts-Glomerulus and bowman's capsule
  4. D two parts-Glomerulus and renal tubule
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Correct answer: D

17
In majority of nephrons, the loop of Henle is;
  1. A too long but extends only very little into the medulla.
  2. B too short and extends only very little into the medulla.
  3. C too short but extends deep into the medulla.
  4. D too long and extends deep into the medulla.
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Correct answer: B

18
Columns of Bertini in the kidney of mammals are formed as the extension of;
  1. A medulla into cortex
  2. B cortex into medulla
  3. C medulla into pelvis
  4. D pelvis into ureter
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Correct answer: B

19
Towards the centre of the inner concave surface of the kidney, a notch is present is called;
  1. A Hilum
  2. B Renal pelvis
  3. C Column of Bertini
  4. D Calyx
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Correct answer: A

20
Which one of the following statements is incorrect?
  1. A Birds and land snails are uricotelic.
  2. B Mammals and frogs are ureotelic.
  3. C Aquatic amphibians and aquatic insects are ammonotelic.
  4. D Birds and reptiles are ureotelic.
Show answer

Correct answer: D

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