Here, you will get Class 11 Biology MCQ of Chapter 19 Excretory Products And Their Elimination for cracking NEET/AIIMS. By solving these MCQs of Class 11 Biology Chapter 19 Excretory Products And Their Elimination, you will get the confidence to crack NEET. Practice MCQ Questions for Class 11 Biology with Answers on a daily basis and score well in exams.
Excretory Products And Their Elimination Class 11 MCQs Questions with Answers
Brush border is characteristic of
(a) Neck of nephron
(b) Collecting tube
(c) Proximal convoluted tubule
(d) All the above
Answer: (c) Proximal convoluted tubule
When a fresh-water protozoan possessing a contractile vacuole, is placed in a glass containing marine water, the vacuole will
(a) increase in number
(b) disappear
(c) increase in size
(d) decrease in size
Answer: (b) disappear
Podocyte are present in
(a) Afferent arteriole
(b) Efferent arteriole
(c) Peritubular network
(d) Bowman’s cup
Answer: (d) Bowman’s cup
If Henle’s loop were absent from mammalian nephron, which of the following is to be expected?
(a) The urine will be more dilute
(b) There will be no urine formation
(c) There will be hardly any change in the qualityand quantity of urine formed
(d) The urine will be more concentrated
Answer: (a) The urine will be more dilute
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
Answer: (b) Urea and uric acid
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
Answer: (d) Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules
Formation of concentrated (hyperosmotic) urine in vertebrates generally depends on
(a) length of the proximal convoluted tubule
(b) length of Henle’s loop
(c) area of Bowman’s capsule epithelium
(d) capillary network forming glomerulus
Answer: (b) length of Henle’s loop
The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is
(a) 50 mm Hg
(b) 75 mm Hg
(c) 20 mm Hg
(d) 30 mm Hg
Answer: (c) 20 mm Hg
Malpighian corpuscles are present in
(a) Cortex
(b) Medulla
(c) Germinal cells
(d) None of the above
Answer: (a) Cortex
Ammonia is the main nitrogenous excretory material in
(a) Amphibians
(b) Aves
(c) Tadpoles
(d) Reptiles
Answer: (c) Tadpoles
A patient suffering from cholera is given saline drip because
(a) Cl– ions are important component of blood plasma
(b) Na+ ions help to retain water in the body
(c) Na+ ions are important in transport of substances across membrane
(d) Cl– ions help in the formation of HCl in stomach for digestion
Answer: (b) Na+ \ ions help to retain water in the body
Pyramids in kidney of frog are
(a) 2
(b) 5
(c) 10
(d) absent
Answer: (d) absent
Average blood filtered by kidneys per minute is
(a) 1000 – 1500 mL
(b) 500 – 600 mL
(c) 200 – 300 mL
(d) 1100 – 1200 mL
Answer: (d) 1100 – 1200 mL
pH of human urine is
(a) 7.0
(b) 6.5
(c) 6.0
(d) 7.5
Answer: (b) 6.5
Nephron is made up of
(a) Malpighian body
(b) Coiled tuble
(c) Both of the above
(d) None of the above
Answer: (c) Both of the above
The principal nitrogenous excretory compound in humans is synthesised
(a) in kidneys but eliminated mostly through liver
(b) in kidneys as well as eliminated by kidneys
(c) in liver and also eliminated by the samethrough bile
(d) in the liver, but eliminated mostly through kidneys
Answer: (d) in the liver, but eliminated mostly through kidneys
Which pair is correct?
(a) Sweat = temperature regulation
(b) Saliva = sense of food taste
(c) Sebum = sexual attraction
(d) Humerus = Hind leg
Answer: (a) Sweat = temperature regulation
Most water and salts are reabsorbed in
(a) DCT
(b) Bowman s capsule
(c) PCT
(d) DCT and PCT
Answer: (c) PCT
Which is not a basic renal function?
(a) Perfusion
(b) Secretion
(c) Reabsorption
(d) Filtration
Answer: (a) Perfusion
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
Answer: (c) Uremia
Ornithine cycle leads to the formation of
(a) NH3
(b) ((NH2)2)CO
(c) C5H4N4O3
(d) C5H4N4
Answer: (b) ((NH2)2)CO
Presence of RBCs in urine is
(a) Uremia
(b) ketonuria
(c) Glucosuria
(d) hematuria
Answer: (d) hematuria
Uric acid is nitrogenous waste in
(a) Mammals and molluscs
(b) Birds and lizards
(c) Frog and cartilaginous fishes
(d) Insects and bony fishes
Answer: (b) Birds and lizards
The two kidneys lie in man
(a) At the level of ovaries
(b) At the same level
(c) Left kidney at a higher level than the right one
(d) Right kidney at a higher level than the left one
Answer: (c) Left kidney at a higher level than the right one
A person is undergoing prolonged fasting. His urine will be found to contain abnormal quantities of
(a) fats
(b) amino acids
(c) glucose
(d) ketones
Answer: (d) ketones
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