CBSE Class 11 Biology Excretory Products And Their Elimination Worksheet Set B

Read and download free pdf of CBSE Class 11 Biology Excretory Products And Their Elimination Worksheet Set B. Students and teachers of Class 11 Biology can get free printable Worksheets for Class 11 Biology Chapter 19 Excretory Products and their Elimination in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 11 students should practice questions and answers given here for Biology in Class 11 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 11 Biology Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests

Worksheet for Class 11 Biology Chapter 19 Excretory Products and their Elimination

Class 11 Biology students should refer to the following printable worksheet in Pdf for Chapter 19 Excretory Products and their Elimination in Class 11. This test paper with questions and answers for Class 11 will be very useful for exams and help you to score good marks

Class 11 Biology Worksheet for Chapter 19 Excretory Products and their Elimination

Excretory Products And Their Elimination MCQ Questions with Answers Class 11 Biology

Question- In which segment of the nephron, reabsorption is minimum?

(1) Proximal convoluted tubule (PCT)

(2) Distal convoluted tubule (DCT)

(3) Loop of Henle

(4) Both (1) & (2)

Answer (3)

 

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

(1) Proximal convoluted tubule

(2) Descending limb of loop of Henle

(3) Ascending limb of loop of Henle

(4) Distal convoluted tubule

Answer (1)

 

Question- Select the true statement

(1) In fishes kidney play a major role in ammonia excretion

(2) Ammonia is 100,000 times less toxic than urea

(3) Sharks retain a large amount of urea in the blood as a major osmolyte to balance the osmolarity of the body fluids

(4) Most terrestrial reptile excrete ammonia

Answer (3)



Question- What is the osmolarity of the filtrate at the hairpin bend of loop of Henle?

(1) 300 mOsmL–1

(2) 1200 mOsmL–1

(3) 600 mOsmL–1

(4) 800 mOsmL–1

Answer (2)

 

Question- The parts of nephron situated in cortical region of kidney are

(1) Loop of Henle, PCT and collecting duct

(2) Collecting duct, PCT and malpighian corpuscle

(3) PCT, DCT and Loop of Henle

(4) PCT, DCT and Malpighian corpuscle

Answer (4)

 

Question- On an average, ______ ml of blood is filtered by the kidneys per minute which constitute roughly ______ of the blood pumped out by each ventricle of the heart in a minute.

(1) 500–600, 1/5th

(2) 1100–1200, 1/3rd

(3) 500–600, 1/3rd

(4) 1100–1200, 1/5th

Answer (4)

 

Question- Which of the following is excretory product of liver?

(1) Carbon dioxide

(2) Bilirubin

(3) Biliverdin

(4) More than one option is correct

Answer (4)

 

Question-  Which one of the following statement is incorrect?

(1) The medullary zone of kidney is divided into a few conical masses called medullary pyramids projecting into calyces

(2) Inside the kidney the cortical region extends in between the medullary pyramids as renal pelvis

(3) Glomerulus along with Bowman’s capsule is called the renal corpuscle

(4) Renal corpuscle, proximal convoluted tubule (PCT) and distal convoluted tubule (DCT) of the nephron are situated in the cortical region of kidney

Answer (2)

 

Question-  Which of the following pairs is wrong?

(1) Uricotelic – Birds

(2) Ureotelic – Insects

(3) Ammonotelic – Bony fishes

(4) Ureotelic – Elephant

Answer (2)

 

Question- Which of the following statement is incorrect?

(1) ADH is a vasoconstrictor

(2) Aldosterone facilitates water reabsorption

(3) ANF enhances sodium reabsorption

(4) ANF causes vasodilation

Answer (3)

 

Question- Removal of proximal convoluted tubule from the nephron will result in 

(1) No urine formation

(2) More diluted urine

(3) More concentrated urine

(4) No change in quality and quantity of urine

Answer (2)

 

Question- Angiotensin - II increases the blood volume by

(1) Signalling PCT to reabsorb more NaCl and water

(2) Stimulating adrenal gland to release aldosterone

(3) By stimulating the release of ADH

(4) More than one option is correct

Answer (4)

 

Question- Consider the following water conservation mechanisms

A. Nasal countercurrent mechanism

B. Dependence on metabolic water

C. Highly hypertonic urine

D. Living more on protein rich diet

The kangaroo rat living in desert can survive without drinking water because of
(1) A, B & C (2) A, B & D (3) B, C & D (4) A, C & D

Answer (1)
 

Question- The kidneys not only remove the waste products from the blood but also play a very important role in maintaining

(1) Equilibrium of the body

(2) Temperature of the body

(3) Constant composition of the blood irrespective of the nature of the food or fluid intake

(4) Blood pressure constant

Answer (3)

 

Question-  The presence of glucose and ketone bodies in urine are indicative of

(1) Diabetes mellitus

(2) Diabetes insipidus

(3) Renal calculi

(4) Glomerulonephritis

 Answer (1)



Question- Henle’s loops are found in those animals which excrete hypertonic urine. One of the following does not have Henle’s loop

(1) Birds

(2) Mammals

(3) Frogs

(4) Reptiles

Answer (3)

 

Question-  Which one influences the activity of kidney?

(1) Vasopressin

(2) Thyroxine

(3) Vasopressin and aldosterone

(4) Gonadotrophin

Answer (3)

 

Question- Vitamin excreted by urine in higher vertebrates is

(1) A

(2) D

(3) K

(4) C

Answer (4)

 

Question-  Which of the following is correct?

(1) Afferent arteriole is narrower than the efferent arteriole

(2) Efferent venule is narrower than vein

(3) Efferent arteriole is narrower than afferent arteriole

(4) Both afferent and efferent arteriole are of same diameter

Answer (3)

 

Question- A fresh water fish maintains osmoregulation by

(1) Continuously taking in water and eliminating excess of salts

(2) Eliminating excess of water and taking up salts from the environment

(3) Taking both water and salt from the environment

(4) Eliminating both salt and water into the environment

Answer (2)

 

Question- When the volume of body fluid falls below normal, ADH

(1) Decreases permeability of distal convoluted tubule and collecting tubule

(2) Increases permeability of distal convoluted tubule and collecting tubule

(3) Has nothing to do with permeability of convoluted tubule

(4) Decreases permeability of proximal convoluted tubule

Answer (2)

 

Question- Haematuria is the disorder involving

(1) The loss of blood through the urine

(2) Loss of haemoglobin in RBC

(3) Loss of glucose in urine

(4) The increase in concentration of blood urea

Answer (1)

 

Question- Concentration of sodium and chloride ions is lowest

(1) Near the cortex

(2) Deep in medulla

(3) In the interstitial fluid

(4) In the middle of Henle’s loop

Answer (1)

 

Question- Human urine is usually acidic because 

(1) Hydrogen ions are actively secreted into the filtrate

(2) The sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries

(3) Excreted plasma proteins are acidic

(4) Potassium and sodium exchange generates acidity

Answer (1)

 

Question-  Sweat contains

(1) NaCl

(2) Lactic acid

(3) Small amount of urea

(4) All of these

Answer (4)

 

Question- Which of the following does not favour the formation of large quantities of dilute urine?

(1) Atrial-natriuretic factor

(2) Alcohol

(3) Caffeine

(4) Renin

Answer (4)

 

Question- The yellow colour of urine is due to

(1) Uric acid

(2) Urea

(3) Urochrome

(4) Melanin

Answer (3)

 

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

(1) Increase in aldosterone levels

(2) Increase in antidiuretic hormone levels

(3) Decrease in aldosterone levels

(4) Decrease in antidiuretic hormone levels

Answer (1)

 

More Question

1 Define the following terms and give one example each:

a) Ammonotelism

b) Ureotelism

c) Urecotelism

2 Identify the excretory structures of the following organisms.

a) Platyhelminthes

b) Annelids

c) Insects

d) Crustaceans

3 With the help of a neat labeled diagram explain the structure of human kidney.

4 Draw a neat labeled diagram of Human Urinary System.

5 Briefly describe the functions of different parts of nephron.

6 Identify and differentiate between the two types of nephrons.

7 What is GFR? Give the GFR rate in a normal human being.

8 Explain the process of urine formation.

9 How does ADH control the kidney function?

10 What is Renin-Angiotensin mechanism?

11 ANF acts as a check on the renin-angiotensin mechanism. Justify.

12 Briefly describe the roles of liver, lungs and skin in excretion.

13 What is uremia? How can kidney failure be avoided in such patients?

14 Name the condition in which stones are formed within the kidney.

15 What is glomerulonephritis?

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