CBSE Questions for Class 11 Medical Biology Excretory Products And Their Elimination Quiz 6 - MCQExams.com

A person's limbs are swollen and he is suffering from weakness and fatigue. This organ may be damaged in him.
  • Kidney
  • Brain
  • Heart
  • Liver
When we say a nephron is the structural and functional unit of the kidneys, we mean that 
(P) The kidney is made up of many nephrons.
(Q) The filtration of blood that occurs in the kidneys is because of what the nephrons do.
(R) Urea formation occurs in the nephrons.
  • Only P and Q
  • Only Q and R
  • Only P and R
  • P, Q and R
How many uriniferous tubules are there in each kidney?
  • $$10$$ lakhs
  • $$20$$ lakhs
  • $$30$$ lakhs
  • $$1$$ lakh
During which process blood is filtered out in Bowman's capsule?
  • Reabsorption
  • Secretion
  • Ultrafiltration
  • None of them
During which process is blood filtered in Bowman's capsule?
  • Reabsorption
  • Secretion
  • Ultrafiltration
  • None of the given three
The yellow colour of normal urine is due to
  • Bilirubin
  • Biliverdin
  • Urochrome
  • Uric acid
Curved portion of the Henle's loop of the Neprons are lined by
  • Ciliated epithelium
  • Cuboidal epithelium
  • Squamous epithelium
  • Columnar epithelium
Effective filtration pressure in glomerulus is caused due to
  • Powerful pumping action of the heart
  • Secretion of adrenalin
  • Afferent arteriole in slightly larger than efferent arteriole
  • Vacuum develops in proximal convoluted tubule and sucks the blood
The Bowman's capsule, a part of the kidney is the site of
  • Filtration of blood constituents
  • Re-absorption of water and glucose
  • Formation of ammonia
  • Formation of urea
The correct match is
I. DCT - Secretion of $$Na^+$$ and $$K^+$$ ions
II. Henle's loop - Reabsorption of glucose, water and $$Na^+$$ ions
III. Podocytes - Attached to the parietal layer of Bowmans capsule
IV. JGA - Rise in glomerular blood pressure activates it to release rennin.
  • III
  • II
  • I
  • IV
Nephrons are related to_______.
  • Respiratory system
  • Circulatory system
  • Excretory system
  • Integumentary system
Most abundant mineral of body fluid is
  • Sodium
  • Chloride
  • Potassium
  • Phosphate
In the given diagram, water absorption does not occur in part labelled as 
639655_40d3786eb71e4708ae4e9b08ab1740c1.jpg
  • W
  • X
  • Y
  • Z
If loop of Henle is absent from mammalian nephron which of the following is expected?
  • Urine will be more concentrated
  • Urine will be more diluted
  • No urine formation
  • No change in quality and quantity
Dahlia starch is used for
  • Study of digestive enzymes
  • Study of kidney function
  • Preparation of noodles
  • Manufacture of chocolates
Proximal and distal convoluted tubules are consituents of.
  • Nephron
  • Vas deferens
  • Oviduct
  • Intestine
Homeostasis is maintained by 
  • Transport system
  • Favourable changes in extra cellular fluid.
  • Hormonal signals
  • All the above
The reabsorption of glucose from the glomerular filtrate is due to
  • High osmotic pressure of filtrate
  • Passive diffusion
  • Active transport across the walls of proximal convoluted part
  • Filtration pressure exerted on the fluids in the loop of Henle
Maintenance of favorable internal environment of living being is called 
  • Homeostasis
  • Metabolism
  • Adaption
  • Irritatibilty
Kidney of adult rabbit is
  • Pronephros
  • Metanephros
  • Mesonephros
  • Opisthonephros
Glomeruli are limited to
  • Cortex
  • Pyramids
  • Medulla
  • Hilus
The yellow colour of urine is due to
  • Uric acid
  • Urea
  • Urochrome
  • Melanin
Columns of Bertin are found in
  • Testes
  • Ovaries
  • Kidney
  • Liver
In man, kidney is
  • Pronephros
  • Mesonephros
  • Metanephros
  • None of the above
The excretory organs of palaeomon are
  • Malpighian tubules
  • Nephridia
  • Green glands
  • Kidneys
Kidney is differentiated into.
  • Cortex and stroma
  • Cortex and medulla
  • Parenchyma and medulla
  • All the above
The bunch of capillaries present in the Bowmans capsule is called
  • Paccinian corpuscle
  • Bowmans capsule
  • Glomerulus
  • Malpighian capsule
The position of kidneys is
  • Inter-peritoneal
  • Retroperitoneal
  • Intraperitoneal
  • None of these
Ducts of Bellini are found in.
  • Liver
  • Intestine
  • Medulla oblongata
  • Kidney
The greenish colour of bile is due to
  • Biliverdin and biluribin
  • Melanin
  • Haematochrome
  • All the above
Malpighian body is present in
  • Skin
  • Kidney
  • Testes
  • Ovaries
Malpighian tubules are the excretory organs in
  • Cockroach
  • Platyhelminthes
  • Ascaris
  • Pila
The amount of urine output per day by a normal human being is
  • 4-5 litres
  • 3-4 litres
  • 1-1.8 litres
  • 0.5-0.75 litres
Malpighian body is constituted by
  • Glomerulus only
  • Glomerulus and Bowman's capsule
  • Glomerulus and efferent vessel
  • Glomerulus, Bowmans capsule and efferent vessel
In adult Frog, the kidney is
  • Pronephros
  • Opisthonephros
  • Mesonephros
  • Metanephros
The collecting ducts in the kidney converge to form
  • Pyramid
  • Calyx
  • Pelvis
  • Columns of Bertin
Rate of glomerular filtration per minute in an adult human being is
  • 125 ml
  • 25 ml
  • 225 ml
  • 425 ml
The pH of fresh urine is about
  • 7.1
  • 6.0
  • 8.4
  • 9.9
In kidneys, urine is produced by three processes
  • Dialysis, ultrafiltration and tubular secretion
  • Ultrafiltration, dialysis and tubular secretion
  • Ultrafiltration, tubular reabsorption and tubular secretion
  • Tubular reabsorption and tubular secretion
The process that pushes out water and other dissolved materials from blood in the glomerulus is
  • Dialysis
  • Secretion
  • Filtration
  • Ultrafiltration
Brush border is characteristic of
  • Neck of nephron
  • Collecting tube
  • Proximal convoluted tubule
  • All the above
Loop of Henle is connected with 
  • Excretory system
  • Nervous system
  • Reproductive system
  • Muscular system
Bowmans capsule is lined by
  • Ciliated cuboidal epithelium
  • Squamous epithelium
  • Non-ciliated cuboidal epithelium
  • Non-ciliated columnar epithelium
Which is true about excretion?
  • 90% water and $$Na^+$$ of glomerular filtrate are absorbed
  • Glucose is reabsorbed in distal convoluted tubule
  • Water is reabsorbed in, proximal convoluted tubule
  • 99% of water and glucose in the glomerular filtrate are reabsorbed
In prawn, excretion is carried out by 
  • Nephrons
  • Malpighian tubules
  • Flame cells
  • Green glands
Identify the incorrect statement
  • Nephrons perform excretion through filtration, re-absorption and secretion
  • Nephridia are accessory excretory organs in Prawns
  • Tapeworm have excretory flame cells
  • Nephrons begin with Bowman's capsule having glomerulus
Liquid which collects in the cavity of Bowman's capsule is
  • Concentrated, urine
  • Plasma minus blood proteins
  • Glycogen and water
  • Sulphates and water
The mechanism of urine formation in nephron involves
  • Ultrafiltration
  • Secretion
  • Diffusion
  • Osmosis
Glomerular filtrate contains glucose in comparison to plasma
  • More
  • Same
  • Less
  • Nil
The filtrate from glomerulus contains
  • Blood without cells and proteins
  • Plasma without sugar
  • Blood with proteins but without cells
  • Blood without urea
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