CBSE Questions for Class 11 Medical Biology Excretory Products And Their Elimination Quiz 13 - MCQExams.com

Proboscis gland in Balanoglossus is associated with
  • Digestion
  • Respiration
  • Circulation
  • Excretion
  • Reproduction
Which of the following does not have an excretory system?
  • Myxine
  • Carcharodone
  • Balanoglossus
  • Asterias
  • Catla
Match the excretory organs listed under column I with the animals given under column II . Choose the answer which gives the correct combination of  alphabets of the two columns.

Column I
(Excretory organs)

Column II
(Animals)
A
Nephridia
p
Hydra
B
Malpighian  tubules
q
Leech
C
Protonephridia
r
Shark
D
Kidneys
s
Round worms


t
Cockroach
  • $$A- q; B - t; C - s; D - r$$
  • $$A - s; B - q; C - p; D - t$$
  • $$A - t; B - q; C - s; D - r$$
  • $$A - q; B - s; C - t; D - p$$
Bowman's capsules occur in.
  • Kidney
  • Pancreas
  • Adrenal gland
  • Pituitary body
Which one of the following correctly explains the function of a specific part of a human nephron?
  • Afferent arteriole: Carries the blood away from the glomerulus toward renal vein
  • Podocytes: Create minute spaces (slit pores) for the filtration of blood into the Bowman's capsule
  • Henle's loop: Most reabsorption of the major substance from the glomerular filtrate
  • Distal convoluted tubule: Reabsorption of K$$^{+}$$ ions into the surrounding blood capillaries
Which one of following statements is false?

  • Presence of albumin in urine is albuminuria.
  • Presence of glucose in urine is albuminuria.
  • Presence of ketone sugar in urine is ketonuria.
  • Presence of excess urea in blood is uremia.
  • Presence of haemoglobin in urine is haemoglobinuria.
  • Presence of glucose in blood is glucosuria. 
Filteration takes place in

  • Malpighian corpuscles
  • Bowman's capsule
  • Glomerulus
  • Collecting tubule
The crossopterygians possess scales called as
  • Placoid
  • Cycloid
  • Ganoid
  • Cosmoid
Match the words of column (A) with that of column (B).

Column (A)
Column (B)
A. PhloemExcretion
B. Nephron2. Translocation of food
C. Veins3. Clotting of blood
D. Platelets4. Deoxygenated blood
  • A- 2, B- 1, C- 4, D- 3
  • A- 1, B- 2, C- 4, D- 3
  • A- 2, B- 1, C- 3, D- 4
  • A- 2, B- 4, C- 1, D- 3
The deep sea organisms having luminous or phosphorescent organ in their integument are
  • Amphibians
  • Fish
  • Mammals
  • All of the above
Biliverdin and bilirubin are excreted mainly alongwith ______.
  • Urine
  • Faeces
  • Sweat
  • Vitamins
Match the following and find the appropriate option.
List - IList - II
AGanoid scales1Pigeon
BUropygial gland
2Polypterus
CPlacoid scales3Frog
DPoison gland4Cartilagenous fish
  • A- 1, B- 2, C- 3, D- 4
  • A- 2, B- 1, C- 3, D- 4
  • A- 1, B- 2, C- 4, D- 3
  • A- 2, B- 1, C- 4, D- 3
Dermal scales are present in
  • Anura
  • Urodela
  • Labyrinthodontia
  • Gymnophiona
Antennary glands are excretory organs of 
  • Spiders
  • Crustaceans
  • Mollusca
  • Echinodermata
Cloacal scent glands occur in epidermis of which animal?
  • Crocodile
  • Alligator
  • Snake
  • All of the above
Placoid scales are unique to
  • Teleosts
  • Elasmobranchs
  • Birds
  • Armadillo
Kidney of amniotes is
  • Pronephros
  • Mesonephros
  • Opisthonephros
  • Metanephros
The ureters of opisthonephric kidneys represents
  • Wolffian ducts in male
  • Mullerian duct in female
  • Wolffian duct in both sexes
  • Both A and B
Renal gland is the excretory organ of
  • Annelida
  • Echinodermata
  • Crustaceans
  • Mollusca
Tuft of capillary vessels which is surrounded by Bowman's capsule is 
  • Malpighian corpuscle
  • Juxtaglomerular apparatus
  • Glomerulus
  • Loop of Henle
Marcello Malpighi in 1966 first described
  • Nephron
  • Glomerulus
  • Bowman's capsule
  • Pygmalion corpuscles
Proximal convoluted tubule is lined by a single layer of .......... cells.
  • Brush bordered cubical
  • Columnar
  • Squamous
  • Cubical
The dotted appearance of cortex of kidney is due to 
  • Malpighian body
  • Convoluted parts
  • Loop of Henle
  • Collecting tubes
In kidney, the high capillary bed is found
  • In Bowman's capsule
  • Around anterior tubules
  • Around loop of Henle
  • Absent
The archinephric kidney is present in 
  • Larvae of vertebrates
  • Lampreys
  • Hagfish
  • Tadpole
The cells of proximal tubule develop microvilli and have brushy border. The number of microvilli per square micron in human being is
  • 150
  • 500
  • 3000
  • 3500
Yellow colour of the urine is due to urochrome, which is synthesized by the oxidation of 
  • Stercobilin.
  • Uric acid.
  • Bile.
  • Cholesterol.
If a person is suffering from a disease of muscular dystrophy, he will eliminate one of the following in large amount in his urine.
  • Sulphates
  • Glucose
  • Creatinine
  • Water
The passing out of almost solid excretory wastes in reptiles is an indication of 
  • Xeric habits
  • Excretion through skin
  • Reutilizing water of urine
  • Both A and C
The interior of the urinary bladder is lined by
  • Columnar epithelium
  • Squamous epithelium
  • Transitional epithelium
  • Goblet cells
In humans, .......... % of the nephrons are cortical.
  • 10%
  • 30-50%
  • 70-80%
  • 100%
Liquid which is collected in Bowman's capsule is 
  • Concentrated urine
  • Plasma without blood proteins
  • Glycogen and water
  • Sulphates and water
The glomerulus is a network of parallel capillaries which are approximately ........... in number.
  • 5
  • 50
  • 500
  • 5000
Urinary bladder is not found in 
  • All of the above
  • Snakes
  • Crocodiles
  • Birds
In Bright's disease
  • Amount of urea in blood increases
  • Blood is passed with urine
  • Kidney stones are formed
  • All of the above
The nephrons in adult human metanephric kidney are 1 million per kidney, whereas in pronephric kidney of embryo of human, number is .......... per kidney.
  • 100
  • 1000
  • 40
  • 10
This question is based on the diagram of a mammalian nephron given below.
At which part urine is less osmotic?
174281_f67cc5a3e94c4e30ab3baa02e4cf33bc.png
  • A
  • B
  • C
  • D
In which one of the following organisms excretory organs are correctly stated?
  • Humans- Kidneys, sebaceous glands and tear glands
  • Earthworm- Pharyngeal, integumentary and septal nephridia
  • Cockroach- Malpighian tubules and enter caeca
  • Frog- Kidneys, skin and buccal epithelium
What is glycosuria?
  • Low amount of sugar in urine
  • Low amount of fat in urine
  • Average amount of carbohydrate in urine
  • High amount of sugar in urine
The afferent arterioles are a group of blood vessels that supply the .......... in the kidneys.
  • Oxygenated blood
  • Distal tubule
  • Junction tub
  • None of the above
This question is based on the diagram of a mammalian nephron given below.
In which of the following part urine is becoming hypertonic, as it goes down?
174287_c0a88b1df9f74a189511485e9c48499f.png
  • A
  • B
  • C
  • D
A medicine that promotes the excretion of excess urine from the body is 
  • Uretic
  • Monouretic
  • Diuretic
  • Triuretic
Match the excretory organs with the animals given. Choose the answer which gives the correct combination of alphabets of the two columns.
List 1List 2
A. NephridiaEarthworm
B. Malpighian tubules2. Cockroach
C. Protonephridia3. Shark
D. KidneysLiver fluke
  • A=2, B=4, C=3, D=1
  • A=1, B=2, C=4, D=3
  • A=4, B=2, C=1, D=5
  • A=2, B=5, C=4, D=3
Choose the correct statement.
  • The juxta medullary nephrons have reduced Henle's loop.
  • Vasa recta is well developed in cortical nephrons.
  • The PCT and DCT are situated in the medulla of the kidney.
  • The glomerulus encloses the Bowman's capsule.
  • The ascending limb of the Henle's loop extends as the DCT.
Name the condition in which the concentration of ketone bodies increases in urine.
  • Acromegaly
  • Diabetes mellitus
  • Diabetes insipidus
  • Cushing's disease
Which one of the following is not a part of renal pyramid?
  • Loops of Henle
  • Peritubular capillaries
  • Convoluted tubules
  • Collecting ducts
The loop of Henle is longest in 
  • Desert lizards
  • Mammals
  • Aquatic reptiles
  • Amphibians
Blackening of urine occurs when exposed to air, is a metabolic disorder in human beings. This is due to 
  • Phenylalanine
  • Tyrosine
  • Valine replacing glutamine
  • Glutamine replacing valine
  • Homogentisic acid
Malpighian tubules empty the excretory wastes  into the 
  • Ureter
  • Gut
  • Coelom
  • Urinary bladder
A large quantity of fluid is filtered every day by the nephrons in the kidneys. Only about 1 % of it is excreted as urine. The remaining 99% of the filtrate
  • Gets collected in the renal pelvis.
  • Is lost as sweat.
  • Is stored in the urinary bladder.
  • Is reabsorbed into the blood.
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