NEET  >  Biology 31 Years NEET Chapterwise Solved Papers  >  31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 Download as PDF

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1


Test Description

25 Questions MCQ Test Biology 31 Years NEET Chapterwise Solved Papers | 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 for NEET 2022 is part of Biology 31 Years NEET Chapterwise Solved Papers preparation. The 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 questions and answers have been prepared according to the NEET exam syllabus.The 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 below.
Solutions of 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 questions in English are available as part of our Biology 31 Years NEET Chapterwise Solved Papers for NEET & 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 solutions in Hindi for Biology 31 Years NEET Chapterwise Solved Papers course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 | 25 questions in 25 minutes | Mock test for NEET preparation | Free important questions MCQ to study Biology 31 Years NEET Chapterwise Solved Papers for NEET Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 1

Presence of which of the following conditions in urine are indicative of Diabetes Mellitus?   [2020]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 1

Diabetes mellitus leads to a complex disorder called prolonged hyperglycemia, which is associated with loss of glucose through urine known as glycosuria and when the cell are unable to utilize carbohydrates for energy instead they use fats & proteins, and degradation of these fats produces ketone bodies.  The presence of these ketone bodies in urine is known as ketonuria.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 2

Which of the following factors is responsible for the formation of concentrated urine?   [2019]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 2

The counter current mechanism helps to maintain a concentration gradient in the medullary mterstitium. The proximity between the Henle’s loop and vasa recta, as well as the counter current in them help in maintaining an increasing osmolarity towards the inner medullary interstitium, i.e., from 300 mOsmoIL-1 in the cortex to about 1200 mOsmolL-1 m the inner medulla. This gradient is mainly caused by NaCl and urea. Presence of such interstitial gradient helps in an easy passage of water from the collecting tubule thereby concentrating the filtrate (urine).

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 3

The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is:[2005]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 3

(i) Glomerular capillary pressure (45 mm Hg) favours filteration. (ii) The colloidal osmotic pressure (due to plasma proteins, particularly albumin) acts against filteration. Its value is ~20 mmHg. (iii) The filterate pressure due to the glomerular filterate filled in the Bowman’s capsule also acts against filteration. Its value is ~10 mmHg.
Net filteration pressure = 45 – (20 + 10) mm Hg = 15 mm of Hg  (10 – 20 mm of Hg)

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 4

In Ornithine cycle, which of the following wastes are removed from the blood? [2005]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 4

Urea NH2 – CO – NH2 is formed from two molecules of ammonia and one molecule of carbon dioxide. A molecule of ammonia combines with carbondioxide to form carbonyl phosphate. It reacts with ornithine to form citrulline. Citrulline accepts another molecule of NH4+ giving rise to arginine. Arginine is hydrolysed into urea and ornithine with the help of enzyme arginase.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 5

 Earthworms are [2006]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 5

Some animals have dual behaviour of excretion eg. earthworm. It excretes ammonia (hence called ammonotelic) when enough water is available but excretes urea (ureotelic) in dry conditions.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 6

Bowman’s glands are located in the anterior pituitary    [2007]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 6

Bowman’s gland sare located in the olfactory epithelium of our nose. 

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 7

Lysozyme that is present in perspiration, saliva and tears, destroys [2007]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 7

Lysozyme is an antibacterial agent which is secreted by the major salivary glands.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 8

Consider the following four statements (a-d)  about certain desert animals such as kangaroo, rat.
[2008]
(a) They have dark colour and high rate of reproduction and excrete solid urine
(b) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs
(c) They feed on dry seeds and do not require drinking water
(d) They excrete very concentrated urine and do not use water to regulate body temperature
Which two of the above statements for such animals are true? [2008]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 8

Characteristics of certain desert animals such as kangaroo, rat are -

  • They feed on dry seeds and do not require drinking water.
  • They excrete very concentrated urine and do not use water to regulate body temperature. 
*Multiple options can be correct
31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 9

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

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 9

The correct option is Option A,C.

Stretch receptors are responsible for sending the signal to the brain when the urinary bladder is filled to its maximum capacity if they are removed urine will collect normally in the bladder and may overflow after a point.

Stretch receptors are responsible for sending the signal to the brain when the urinary bladder is filled to its maximum capacity if they are removed two things will happen:

1- Urine will continue to get collected in the bladder,

2- Since there is no receptor to stop urine collection in the bladder and remove the already present urine, there will be no micturition.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 10

Uric acid is the chief nitrogenous component of the excretory products of [2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 10

Uric acid is the chief nitrogenous component of the excretory product of cockroach. Animals which live in dry conditions have to conserve water in their bodies. Therefore, they synthesise crystals of uric acid trom ammonia. Uric acid crystals are non-toxic and can be retained in the body for a considerable time. Uricotelic animals include most insects e.g. cockroach, reptiles and birds.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 11

Which one of the following statements in regard to the excretion by the human kidneys is correct? [2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 11

Urine formation involves three main process called, glomerular filtration, reabsorption and secretion. A comparison of the volume of the filtrate formed per day (which is 180 litres per day) with that of urine released (about 1.5 litres) suggest that nearly 99 percent of the glomerular filtrate is resorbed by the renal tubules. The descending limb of loop of Henle is permeable to water but impermeable to electrolytes.
The ascending limb is impermeable to water but allows transport of electrolytes.
Reabsorption of sodium ions and water takes place in distal convoluted tubule.
Also, it is capable of reabsorption of HCO3.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 12

The principal nitrogenous excretory compound in humans is synthesised [2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 12

The principal nitrogenous excretory compound in humans is urea. It is synthesized in the mitrochondrial matrix and cytosol of liver cells and eliminated through kidneys.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 13

Consider the following four statements (i-iv) regarding kidney transplant and select the two correct ones out of these. [2010]
(i) Even if a kidney transplant is proper the recipient may need to take immune suppresants for a long time
(ii) The cell mediated immune response is responsible for the graft rejection
iii) The B lymphocytes are responsible for rejection of the graft
(iv) The acceptance or rejection of a kidney transplant depends on specific interferons
The two correct statements are:

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 13

Tissue and blood group matching are essential before undertaking kidney transplant. Even if kidney transplant is proper, the recipient may need to take immuno suppresant all his/her life. The ability of body to differentiate self and nonself and the cell-mediated immune response is responsible for graft rejection.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 14

Which one of the following is not a part of a renal pelvis? [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 14

The medulla is divided into a few conical masses called medullary pyramids projecting into the calyces.
The cortex extends in between the medullary pyramids as renal columns called Columns of Bertini. Hence convoluted tubules are not a part of the renal tubule.
So, the correct answer is 'Convoluted tubules'.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 15

A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2 [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 15

A large portion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2 acts as a reserve during muscular exercise.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 16

Which one of the following correctly explains the function of a specific part of a human nephron ? [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 16

Glome podocytes are highly specialized cells with a complex cytoarchitecture plays a major role in establishing the  selective permeability of glomerular filtration barrier.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 17

Which one of the following statements is correct with respect to kidney function regulation ? [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 17

When some one drinks lots of water, kidney release of ADH is suppressed.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 18

Uricotelic mode of passing out nitrogenous wastes is found in [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 18

An uricotelic organism produces uric acid as a result of de-amination. Examples of such organism are birds and insects.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 19

Ureters act as urogenital ducts in     [2011M]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 19

In the frog, each kidney is composed of several structural and functional units called uriniferous tubule or nephrons. Two ureters emerge from the kidneys in the male frogs. The ureters act as a urinogenital duct which opens into the cloaca. The thin-walled urinary bladder is present ventral to the rectum which opens in the cloaca.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 20

The maximum amount of electrolytes and water (70 - 80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron ? [2012]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 20

Nearly all the essential nutrients, and 70-80 percent of electrolytes and H2O are reabsorbed by proximal convoluted tubules.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 21

Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous wastes (A, B, C), they give out? [2012M]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 21

Those animals that excrete ammonia are called as ammonotelic, eg. aquatic amphibia. Those animals that excrete urea are called as ureotelic, eg. frog, humans.
Those animals that excrete uric acid are called as uricotelic, eg. pigeon, lizards, and cockroach.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 22

A fall in glomer ular filtration rate (GFR) activates [2012M]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 22

 The amount of the filtrate formed by the kidneys per minute is called glomerular filtration rate (GFR). GFR in a healthy individual is approximately 125 ml/ minute, i.e., 180 litres per day. A fall in GFR can activate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the GFR back to normal. Renin converts angiotensinogen in blood to angiotensin I and further angiotensin II. Angiotensin II being powerful vasoconstrictor increases the glomerular blood pressure and thereby GFR

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 23

Which one of the following characteristics is common to both in humans and adult frogs? [2012M] 

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 23

Adult frog and human exhibit ureotelism because there excretory waste product is urea.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 24

Figure shown human urinar y system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and /or functions. [NEET 2013]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 24

A – Adrenal gland – located at the anterior part of kidney, secrete Catecholamines which stimulate glycogen breakdown.

31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 25

Select the option which shows correct matching of animal with excretory organs and excretory product [NEET Kar. 2013]

Detailed Solution for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 - Question 25

Option ( c) is correct answer. 

Explanation :- 

As Housefly - Malpigian Tubules - Uric acid

Rohu - Kidney - Ammonia

Peacock - Kidney - Uric acid

Salamander - Kidney - Urea

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 Page
In this test you can find the Exam questions for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for 31 Years NEET Previous Year Questions: Excretory Products & Their Elimination - 1, EduRev gives you an ample number of Online tests for practice