MCQ Questions for Class 11 Biology Chapter 19 Excretory Products and their Elimination with Answers

Excretory Products and their Elimination Class 11 Biology MCQs Questions with Answers

Check the below NCERT MCQ Questions for Class 11 Biology Chapter 19 Excretory Products and their Elimination with Answers Pdf free download. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have Provided Excretory Products and their Elimination Class 11 Biology MCQs Questions with Answers to help students understand the concept very well.

Class 11 Biology Chapter 19 Quiz

Class 11 Biology Chapter 19 MCQ Online Test

You can refer to NCERT Solutions for Class 11 Biology Chapter 19 Excretory Products and their Elimination to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Excretory Products and their Elimination Class 11 Biology MCQ online test

Q1.	Presence of RBCs in urine is
	A.Uremia
	B.ketonuria
	C.Glucosuria
	D.hematuria

Ans: hematuria
Explanation:
Presence of blood in urine is called hematuria.
Presence of glucose in urine is called glucosuria.
Presence of ketone bodies in urine is called ketonuria.

Q2.	Ornithine cycle leads to the formation of
	A.NH₃
	B.((NH₂)₂)CO)
	C.C₅H₄N₄O₃
	D.C₅H₄N₄

Ans: ((NH₂)₂)CO)
Explanation:
Ornithine cycle is the other name of urea cycle. Urea cycle is the production of urea from ammonia.
((NH₂)₂)CO) is the chemical formula of urea.
NH₃ is ammonia.
C₅H₄N₄ is purine.
C₅H₄N₄O₃ is uric acid.

Q3.	The yellow pigment derived from heme breakdown and excreted by kidneys is
	A.Uric acid
	B.Urochrome
	C.Cholesterol
	D.Melanin

Ans: Urochrome

Q4.	What happens when glomerular filteration rate falls?
	A.Activation of podocytes
	B.Release of renin
	C.Repression of juxta glomerular cells
	D.None of the above

Ans: Release of renin
Explanation:
Fall in GFR activates juxta glomerular cells to release renin which stimulates glomerular blood flow and brings back the GFR to normal.

Q5.	Which of the following can be cured by hemodialysis?
	A.Renal calculi
	B.Glomerulonephritis
	C.Uremia
	D.All of these can be cured by hemodialysis

Ans: Uremia
Explanation:
Malfunctioning of kidneys can lead to accumulation of urea in blood, this situation leads to uremia.
This can lead to kidney failure. In such patients, urea can be removed by hemodialysis.

Q6.	Kidneys are located in
	A.thoracic cavity
	B.abdominal cavity
	C.body cavity
	D.pelvic cavity

Ans: abdominal cavity
Explanation:
Kidneys are present in abdominal cavity along with digestive organs.
Body cavity contains brain and spinal cord.
Thoracic cavity contains heart and lungs.
Pelvic cavity contains bladder and reproductive organs.

Q7.	The muscular tubes which take the urine from the kidneys to the bladder are
	A.Urinary bladders
	B.Ureters
	C.Urethras
	D.Nephrons

Ans: Ureters

Q8.	Most water and salts are reabsorbed in
	A.DCT
	B.Bowman s capsule
	C.PCT
	D.DCT and PCT

Ans: PCT

Explanation:
Maximum absorption of water and salts occurs in proximal convulated tubule.

Q9.	Reabsorption of filterate occurs in
	A.renal tubules
	B.glomerular apparatus
	C.medullary pyramid
	D.juxta cells

Ans: renal tubules
Explanation:
Nearly 99 per cent of the filtrate is absorbed by renal tubules.

Q10.	JG cells release
	A.angiotensin II
	B.aldosterone
	C.renin
	D.ANF

Ans: renin
Explanation:
A fall in glomerular blood flow activates JG cells to release renin.

Q11.	pH of human urine is
	A.7.0
	B.6.5
	C.6.0
	D.7.5

Ans: 6.5
Explanation:
The average pH of human urine is 6.0.

Q12.	Average blood filtered by kidneys per minute is
	A.1000 – 1500 mL
	B.500 – 600 mL
	C.200 – 300 mL
	D.1100 – 1200 mL

Ans: 1100 – 1200 mL
Explanation:
On an average kidneys filter 1100 – 1200 mL of blood per minute.

Q13.	Kidneys are located in
	A.thoracic cavity
	B.abdominal cavity
	C.body cavity
	D.pelvic cavity

Q14.	Which one of the following statements in regard to the excretion by the human kidneys is correct?
	A.Ascending limb of Loop of Henle is impermeable to electrolytes
	B.Descending limb of Loop of Henle is impermeable to water
	C.Distal convoluted tubule is incapable of reabsorbing HCO₃
	D.Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules

Ans: Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules

Q15.	In the kidneys, osmotic pressure controls ______.
	A.Glucose absorption
	B.Sodium absorption
	C.Water absorption
	D.none of these

Ans: Water absorption

Q16.	Presence of __________ in urine indicates diabetes mellitus.
	A.Glucose
	B.Cholesterol
	C.Ketone bodies
	D.Both 1 and 3

Ans: Both 1 and 3
Explanation:
Presence of ketone bodies and glucose in urine indicates diabetes mellitus.

Q17.	If a man takes large amount of protein, he is likely to excrete more amount of
	A.Glucose
	B.Urea and uric acid
	C.Water
	D.Salts

Ans: Urea and uric acid

Q18.	Nerves, blood vessels and ureter enters into the kidney through
	A.calyces
	B.hilum
	C.capsule
	D.cortex

Ans: hilum
Explanation:
Nerves, blood vessels and ureter enters into the kidney through hilum.

Q19.	The principal nitrogenous excretory compound in humans is synthesised
	A.In the liver but eliminated mostly through kidneys
	B.In kidneys but eliminated mostly through liver
	C.In kidneys as well as eliminated by kidneys
	D.In liver and also eliminated by the same through bile