Class 11 15.Chapter Excretion and Osmoregulation Exercise Biology Science Mahara.. board 2022
Channel: MB Class
Date: 10/01/2021

Excretion and Osmoregulation

Class 11 15.Chapter Excretion and Osmoregulation Exercise Biology Science Mahara.. board 2022

#HSC BOARD
#Exercise

1. Living World
2. Systematics of Living Organisms
3. Kingdom Plantae
4. Kingdom Animalia
5. Cell Structure and Organization
6. Biomolecules
7. Cell Division
8. Plant Tissues and Anatomy 
9. Morphology of Flowering Plants
10. Animal Tissue
11. Study of Animal Type : Cockroach
12. Photosynthesis
13. Respiration and Energy Transfer
14. Human Nutrition
15. Excretion and Osmoregulation
16. Skeleton and Movement
#LivingWorld
#SystematicsofLivingOrganisms
#KingdomPlantae
#KingdomAnimalia
#CellStructureandOrganization
#Biomolecules
#CellDivision
#PlantTissuesandAnatomy
#MorphologyofFloweringPlants
#AnimalTissue
#StudyofAnimalType:Cockroach
#Photosynthesis
#RespirationandEnergyTransfer
#HumanNutrition
#ExcretionandOsmoregulation
#SkeletonandMovement
#NCERT
Exercise:
1. Choose correct option
A. Which one of the following organisms 
would spend maximum energy in 
production of nitrogenous waste?
a. Polar bear b. Flamingo 
c. Frog d. Shark
B. In human beings, uric acid is formed due 
to metabolism of __________.
a. amino acids b. fatty acids 
c. creatinine d. nucleic acids
C. Visceral layer : Podocytes :: PCT : 
_______
a. Cilliated cells 
b. Squamous cells
c. Columnar cells 
d. Cells with brush border
D. Deproteinised plasma is found in 
__________.
a. Bowman's capsule
b. Descending limb
c. Glomerular capillaries
d. Ascending limb
E. Specific gravity of urine would _______
if level of ADH increases.
a. remain unaffected b. increases 
c. decreases d. stabilise
F. What is micturition?
a. Urination b. Urine formation 
c. Uremia c. Urolithiasis
G. Which one of the following organisms 
excrete waste through nephridia?
a. Cockroach b. Earthworm 
c. Crab d. Liver Fluke 
H. Person suffering from kidney stone is 
advised not to have tomatoes as it has 
_______.
a. seeds b. lycopene 
c. oxalic acid d. sour taste
I. Tubular secretion does not take place in 
________.
a. DCT b. PCT 
d. collecting duct d. Henle's loop
J. The minor calyx ____________.
a. collects urine 
b. connects pelvis to ureter
c. is present in the cortex
d. receives column of Bertini
K. Which one of the followings is not a part 
of human kidney?
a. Malpighian body 
b. Malpighian tubule
c. Glomerulus 
d. Loop of Henle
L. The yellow colour of the urine is due to 
presence of ___________
a. uric acid b. cholesterol 
c. urochrome d. urea
M. Hypotonic filtrate is formed in _______
a. PCT b. DCT c. LoH d. CT
N. In reptiles, uric acid is stored in _____
a. cloaca b. fat bodies 
c. liver d. anus
O. The part of nephron which absorbs 
glucose and amino acid is______
a. collecting tubule
b. proximal tubule
c. Henle's loop 
d. DCT
P. Bowman's capsule is located in kidney 
in the ________
a. cortex b. medulla 
c. pelvis d. pyramids
Q. The snakes living in desert are 
mainly__________
a. aminotelic b. ureotelic 
c. ammonotelic d. uricotelicR. Urea is a product of breakdown of 
___________
a. fatty acids b. amino acids 
c. glucose d. fats
S. Volume of the urine is regulated 
by__________
a. aldosterone b. ADH 
c. both a and b d. none
2. Answer the following questions
A. Doctors say Mr. Shaikh is suffering from 
urolithiasis. How it could be explained 
in simple words?
B. Anitaji needs to micturate several 
times and feels very thirsty. This is an 
indication of change in permeability of 
certain part of nephron. Which is this 
part?
C. Effective filtration pressure was 
calculated to be 20 mm Hg; where 
glomerular hydrostatic pressure was 
70 mm of Hg. Which other pressure is 
affecting the filtration process? How 
much is it?D. Name any one guanotelic organism.
E. Why are kidneys called 'retroperitoneal'?
F. State role of liver in urea production.
G. Why do we get bad breath after eating 
garlic or raw onion?
3. Answer the following questions
A. John has two options as treatment for 
his renal problem : Dialysis or kidney 
transplants. Which option should he 
choose? Why?
B. Amphibian tadpole can afford to be 
ammonotelic. Justify.
C. Birds are uricotelic in nature. Give 
reason.
4. Write the explanation in your word
A. Nitya has been admitted to hospital after 
heavy blood loss. Till proper treatment 
could be given; how did Nitya's body 
must have tackled the situation?
5. Complete the diagram / chart with correct 
 labels / information. Write the conceptual 
 details regarding it
A 
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