Quantrex Academy Quantrex AcademyPYQs with solutions · JEE · NEET · NDA

Home · NEET UG · Zoology · Excretory Products and their Elimination

Excretory Products and their Elimination — NEET UG Zoology PYQs

402 previous year questions from Excretory Products and their Elimination with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

402 questionsZoologySolutions on every page
1

Which of the following statements about the reabsorption process in Henle's loop are correct ? (a) The descending limb of Henle's loop is permeable to water but almost impermeable

NEET 2026 Solution View → 2

The JGA (Juxta Glomerular Apparatus) is a special sensitive region formed by cellular modifications in ____________ related to the same nephron.

NEET 2026 Solution View → 3

Arrange the following events occurring in Renin-Angiotensin mechanism in the correct order : A. Increase in blood pressure and Glomerular filtration rate. B. Reabsorption of Na ⁺ a

NEET 2026 Solution View → 4

Which of the following diagrams is correct with regard to the proximal (P) and distal (D) tubule of the Nephron.

NEET 2025 Solution View → 5

Given below are two statements: Statements I: Concentrated urine is formed due to counter current mechanism in nephron. Statement II: Counter current mechanism helps to maintain os

NEET 2024 Solution View → 6

Choose the correct statement given below regarding juxta medullary nephron.

NEET 2024 Solution View → 7

Given below are two statements : Statement I : In the nephron, the descending limb of loop of Henle is impermeable to water and permeable to electrolytes. Statement II : The proxim

NEET 2024 Solution View → 8

Diuresis is prevented by:

NEET 2024 Solution View → 9

Arrange the events of Renin - Angiotensin mechanism in correct sequence. (A) Activation of JG cells and release of renin. (B) Angiotensin II activates release of aldosterone. (C) F

NEET 2023 Solution View → 10

Match List I and List II List I List II A Taenia I Nephridia B Paramoecium II Contractile vacuole C Periplaneta III Flame cells D Pheretima IV Urecose gland Choose the correct answ

NEET 2023 Solution View → 11

Given below are statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Nephrons are of two types: Cortical and Juxta medullary, based on the

NEET 2023 Solution View → 12

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Ascending limb of loop of Henle is impermeable to water a

NEET 2023 Solution View → 13

Nitrogenous waste is excreted in the form of pellet or paste by:

NEET 2022 Solution View → 14

Select the correct statements. (a) Angiotensin II activates the cortex of adrenal gland to release aldosterone. (b) Aldosterone leads to increase in blood pressure. (c) ANF acts as

NEET 2022 Solution View → 15

Erythropoietin hormone which stimulates RBC formation is produced by:

NEET 2021 Solution View → 16

The increase in osmolarity from outer to inner medullary interstitium is maintained due to : (i) Close proximity between Henle's loop and vasa recta (ii) Counter current mechan

NEET 2020 Solution View → 17

Select the correct statement:

NEET 2020 Solution View → 18

Which of the following would help in the prevention of diuresis?

NEET 2020 Solution View → 19

The renal fluid isotonic to the cortical fluid and blood is found in

AIIMS 2019 Solution View → 20

Assertion : Malpighian tubules are excretory organs in most of the insects. Reason : These help in excretion of urea only.

AIIMS 2019 Solution View → 21

Assertion : Stimulation of renin secretion will increase the volume of extracellular fluid (ECF). Reason : Increased ECF occurs due to decreased active reabsorption of Na ⁺ .

AIIMS 2019 Solution View → 22

What is the function of Bowman's capsule and Glomerulus?

AIIMS 2019 Solution View → 23

Match the following parts of a nephron with their function. Select the correct option from the following

NEET 2019 Solution View → 24

Use of an artificial kidney during hemodialysis may result in: a Nitrogenous waste build-up in the body b Non-elimination of excess potassium ions ( c ) Reduced absorption of calci

NEET 2019 Solution View → 25

Which of the following factors is responsible for the formation of concentrated urine?

NEET 2019 Solution View → 26

Match the items in Column-I with those in Column II Select the correct option from the following

NEET 2019 Solution View → 27

It is a disease which mainly affects mucous membrane of urinogenital tract. In males, burning feeling on passing urine, after a yellow discharge occurs, that is accompanied by feve

AIIMS 2018 Solution View → 28

An X-ray of the lower abdomen shows a shadow in the region of the ureter suspected to be a ureteric calculus. A possible clinical symptom would be

AIIMS 2018 Solution View → 29

Match the items given in Column I with those in Column II and select the correct option given below: Column - I Column - II a. Glycosuria i. Accumulation of uric acid in joints b.

NEET 2018 Solution View → 30

Match the items given in Column I with those in Column II and select the correct option given below: Column - I Column - II (Part Function Part of Excretory System) a. Ultrafiltrat

NEET 2018 Solution View → 31

Which part of the nephron is impermeable to water?

AIIMS 2017 Solution View → 32

A decrease in blood pressure/volume will not cause the release of

NEET 2017 Solution View → 33

Which of the following statements is correct?

NEET 2017 Solution View → 34

In mammals, which blood vessel would normally carry the largest amount of urea?

NEET 2016 Solution View → 35

The part of nephron involved in conditional reabsorption of sodium is

NEET 2016 Solution View → 36

Which of the following waste products in grasshopper is not excreted and is used in other metabolic activities?

AIIMS 2015 Solution View → 37

Which part of the nephrons is impermeable to water?

AIIMS 2015 Solution View → 38

The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of :

NEET 2015 Solution View → 39

Human urine is usually acidic because

NEET 2015 Solution View → 40

Removal of proximal convoluted tubule from the nephron will result in:

NEET 2015 Solution View → 41

Which of the following does not favor the formation of large quantities of dilute urine?

NEET 2015 Solution View → 42

Refer the given figure of nephron. Identify A, B, C and D and select the correct option regarding them

AIIMS 2014 Solution View → 43

Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?

NEET 2014 Solution View → 44

Which of the following is true for excretion in humans?

AIIMS 2013 Solution View → 45

Select the option which shows correct matching of animal with its excretory organ and excretory product.

NEET 2013 Solution View → 46

Figure shows human urinary system with structures labelled A to D . Select option, which correctly identifies them and gives their characteristics and/of functions

NEET 2013 Solution View → 47

Assertion : In proximal convoluted tubule glomerular filtrate becomes hypertonic to blood plasma. Reason : HCO ₃⁻ is absorbed only in the proximal convoluted tubule.

AIIMS 2012 Solution View → 48

The maximum amount of electrolytes and water (70-80 %) from the glomerular filtrate is reabsorbed in which part of the nephron?

NEET 2012 Solution View → 49

Which one of the following options gives the correct categorisation of six animals according to the type of nitrogenous wastes (A, B, C), they give out?

NEET 2012 Solution View → 50

A fall in glomerular filtration rate (GFR) activates

NEET 2012 Solution View → 51

Which one of the following characteristics is common both in humans and adult frogs?

NEET 2012 Solution View → 52

Which one of the following is correct regarding the excretion?

AIIMS 2011 Solution View → 53

If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from

NEET 2011 Solution View → 54

Which one of the following correctly explains the function of a specific part of a human nephron?

NEET 2011 Solution View → 55

Which one of the following is not a part of a renal pyramid?

NEET 2011 Solution View → 56

Uricotelic mode of passing out nitrogenous wastes is found in

NEET 2011 Solution View → 57

Ureters act as urogenital ducts in

NEET 2011 Solution View → 58

Assertion : While on going down the loop of Henle, the filtrate becomes hypotonic. Reason : The descending limb of loop of Henle is impermeable to both water and electrolytes.

AIIMS 2010 Solution View → 59

Which one of the following statements in regard to the excretion by the human kidneys is correct?

NEET 2010 Solution View → 60

In which one of the following organism, its excretory organs are correctly stated?

NEET 2010 Solution View → 61

Consider the following four statements (1-4) regarding kidney transplant and select the two correct ones out of these. (1) Even if a kidney transplant is proper the recipient may n

NEET 2010 Solution View → 62

The principal nitrogenous excretory compound in humans is synthesised

NEET 2010 Solution View → 63

What will happen if the stretch receptors of the urinary bladder wall are totally removed?

NEET 2009 Solution View → 64

Uric acid is the chief nitrogenous component of the excretory products of

NEET 2009 Solution View → 65

What will happen if the stretch receptors of the urinary bladder wall are totally removed ?

NEET 2009 Solution View → 66

Which one of the following pairs is not correctly matched?

AIIMS 2008 Solution View → 67

Assertion : Secreting hypotonic urine is effective in reducing urinary loss of water. Reason : Hypotonic urine is more concentrated and higher in osmotic pressure than the blood.

AIIMS 2007 Solution View → 68

A person who is on a long hunger strike and is surviving only on water, will have:

NEET 2007 Solution View → 69

Bowman's glands are located in the:

NEET 2007 Solution View → 70

Angiotensinogen is a protein produced and secreted by:

NEET 2006 Solution View → 71

Which one of the following statements is correct with respect to salt water balance inside the body of living organisms?

AIIMS 2005 Solution View → 72

In ornithine cycle, which of the following wastes are removed from the blood?

NEET 2005 Solution View → 73

The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is:

NEET 2005 Solution View → 74

Uricotelism is found in:

NEET 2004 Solution View → 75

If Henle's loop were absent from mammalian nephron, which one of the following is to be expected ?

NEET 2003 Solution View → 76

Which of the following are uricotelic animals?

AIIMS 2002 Solution View → 77

What substances do animals accumulate?

NEET Solution View → 78

What is the main elimination mechanism in our body?

NEET Solution View → 79

What are the major forms of nitrogenous waste excreted by animals?

NEET Solution View → 80

Which form of nitrogenous waste is the most toxic?

NEET Solution View → 81

Which form of nitrogenous waste requires the least amount of water for elimination?

NEET Solution View → 82

How does the toxicity of ammonia, urea and uric acid compare?

NEET Solution View → 83

What is the significance of water in the elimination of ammonia?

NEET Solution View → 84

What is the process of excreting ammonia called?

NEET Solution View → 85

What type of animals are ammonotelic in nature?

NEET Solution View → 86

How is ammonia excreted by animals?

NEET Solution View → 87

Why is terrestrial adaptation necessary for the production of lesser toxic nitrogenous wastes?

NEET Solution View → 88

What type of animals are referred to as ureotelic animals?

NEET Solution View → 89

How is ammonia produced from metabolism excreted from ureotelic animals?

NEET Solution View → 90

How do uricotelic animals excrete nitrogenous waste?

NEET Solution View → 91

Which type of animal excretes nitrogenous waste as both urea and uric acid?

NEET Solution View → 92

Why is some amount of urea retained in the kidney matrix of some ureotelic animals?

NEET Solution View → 93

What type of excretory structures are found in most of the invertebrates?

NEET Solution View → 94

What are protonephridia primarily concerned with?

NEET Solution View → 95

What type of excretory structures are found in earthworms and other annelids?

NEET Solution View → 96

What are malpighian tubules responsible for in insects?

NEET Solution View → 97

Which type of excretory structure is found in flatworms?

NEET Solution View → 98

What are the excretory functions performed by the antennal glands in crustaceans?

NEET Solution View → 99

What type of excretory structures are found in most vertebrates?

NEET Solution View → 100

What type of excretory structure is found in cephalochordate Amphioxus?

NEET Solution View → 101

What is the function of nephridia in annelids?

NEET Solution View → 102

What type of excretory structures are primarily concerned with osmoregulation in invertebrates?

NEET Solution View → 103

What is the excretory system in humans comprised of?

NEET Solution View → 104

What is the shape of the human kidney?

NEET Solution View → 105

Where are the kidneys located in the human body?

NEET Solution View → 106

What is the hilum?

NEET Solution View → 107

What is the average weight of an adult human kidney?

NEET Solution View → 108

What is the renal pelvis?

NEET Solution View → 109

What is the outer layer of the kidney called?

NEET Solution View → 110

What are the medullary pyramids?

NEET Solution View → 111

What are the renal columns called?

NEET Solution View → 112

What is the innermost part of the kidney?

NEET Solution View → 113

What are nephrons in the kidney?

NEET Solution View → 114

What are the two parts of a nephron?

NEET Solution View → 115

What is the glomerulus in a nephron?

NEET Solution View → 116

What carries blood away from the glomerulus in a nephron?

NEET Solution View → 117

How many nephrons are in each kidney of a human?

NEET Solution View → 118

What encloses the glomerulus in the renal tubule?

NEET Solution View → 119

What is the glomerulus along with Bowman's capsule called?

NEET Solution View → 120

What is the first part of the renal tubule after Bowman's capsule?

NEET Solution View →
Practice all Excretory Products and their Elimination questions in the app →