CBSE Questions for Class 11 Medical Biology Excretory Products And Their Elimination Quiz 16 - MCQExams.com

Which of the following statement is false
  • Nephrons perform excretion through filtration, reabsorption and secretion.
  • Nephridia are accessory excretory organs in Prawn
  • Tapeworm have excretory flame cells
  • Nephrons begin with Bowmen's capsule having glomerulus
Nephron produces how much concentrated urine? 
  • 4 times
  • 5 times
  • 3 times
  • 2 times
State if the following statement is True or False. Correct the False statement.
The blood vessel leading into Bowman's capsule is called renal artery.
  • True
  • False
Excretion, irritability and homeostasis are the characters of?
  • All animals
  • All plants
  • All plants and animals
  • All animals and few plants
The glomerulus is derived from?
  • Renal cortex
  • Renal medulla
  • Renal vein
  • Renal artery
Which one of the following statements is incorrect?
  • In cockroaches and prawns excretion of waste material occurs through Malpighian tubules
  • In ctenophores, locomotion is mediated by comb plates
  • In Fasciola flame cells take part in excretion
  • Earthworm are hermaphrodites and yet cross fertilization take place among them
Extensions of cortex in between renal medullary pyramids are known as:
  • Columns of Bertini
  • Ducts of Bellini
  • Collecting ducts
  • Juxta glomerular apparatus
Which of the following statements is not correct about vasa recta?
  • It is the branch of efferent arteriole present along juxtamedullary nephrons
  • It acts like a counters current exchanger during osmoregulation process
  • Vasa recta contain blood plasma hypertonic to plasma of normal blood capillaries in both its limbs
  • Vasa recta maintain the medullary hyperosmolarity
The kidneys have built in mechanism for the regulation of glomerular filtration rate. One such efficient mechanism is carried out by juxtaglomerular apparatus(JGA). JGA is a specific sensitive region formed by
A. Afferent arteriole before it divides to form glomerulus
B. Cellular modifications in distal convoluted tubule where it is in contact with afferent arteriole
C. Macula densa cells
D. Glomerulus.
  • A only
  • A & B
  • A, B & C
  • A, B, C & D
If renal plasma flow is 1000 ml/min and filtration fraction is 24%. What will be glomerular filtration rate per hour ?
  • 240 ml
  • 1.44 lt
  • 14.4 ml
  • 14.4 lt
Creatinine is formed by?
  • Urea
  • Uric acid
  • Breakdown of certain phosphate in muscle
  • Kidney
What is oxidized in second stage of aerobic decomposition?
  • Nitrogenous matter
  • Carbonaceous matter
  • Organic matter
  • Inorganic Dusts
Mark the incorrect statement.
  • Angiostensin II is involved in enhancing reabsorption of $$Na^+$$ in DCT of the nephron
  • Loop of Henle is largely responsible for concentrating urine
  • Ionocytes are main structures for elimination of monovalent ions from the body fluids of an osmoregulatory marine fish
  • Arginase enzyme catalyzes the step involving conversion of ornithine to urea
What causes bad odour in waste treatment plant?
  • $$CO_{2}$$
  • $$CO$$
  • $$H_{2}S$$
  • PAN
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 11 Medical Biology Quiz Questions and Answers