11th Standard Syllabus & Materials
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Published on: 13/05/2022
QB365 provides detailed and simple solution for every book back questions in class 11 Biology subject.It will helps to get more idea about question pattern in every book back questions with solution.
latest Book back QuestionsDownload Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Biology Test1.
Several statements are given here in reference to cone cells Which of the following option indicates all correct statements for cone cells? Statements
(i) Cone cells are less sensitive in bright light than Rod cells
(ii) They are responsible for colour vision
(iii) Erythropsin is a photo pigment which is sensitive to red colour light
(iv) They are present in the fovea of retina
(iii), (ii) and (i)
(ii), (iii) and (iv)
(i), (iii) and (iv)
(i), (ii) and (iv)
2.
Assertion(A): The imbalance in concentration of Na+, K+ and proteins generates action potential.
Reason(R): To maintain the unequal distribution of Na+ and K+, the neurons use electrical energy.
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion.
Assertion is true, but Reason is false.
Both Assertion and Reason are false
3.
A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abnormal skin. This is the result of ____.
Low secretion of growth hormone
Cancer of the thyroid gland
Over secretion of pars distalis
Deficiency of iodine in diet
4.
Isinglass is used in _____.
Preparation
Clearing of wines
Distillation of wines
Preservation of wines
5.
Synovial fluid is found in _____.
Ventricles of the brain
Spinal cord
Immovable joint
Freely movable joints
6.
Each skeletal muscle is covered by ______.
epimysium
perimysium
endomysium
hypomysium
7.
The bundle of muscle fibres is called _____.
Myofibrils
fascicle
sarcomere
sarcoplasm
8.
CO2 is transported through blood to lungs as _____.
carbonic acid
oxyhaemoglobin
carbamino haemoglobin
carboxy haemoglobin
9.
10.
Aldosterone acts at the distal convoluted tubule and collecting duct resulting in the absorption of water through _____.
Aquaporins
Spectrins
GLUT
Chloride channels
11.
Which of the following is not true regarding intestinal villi?
They possess microvilli.
They increase the surface area.
They are supplied with capillaries and the lacteal vessels
They only participate in digestion of fats.
12.
Which one is incorrectly matched?
Pepsin - Stomach
Renin -Liver
Trypsin - Intestine
Ptyalin - Mouth
13.
The sphincter of Oddi guards _____.
Hepatopancreatic duct
Common bile duct
Pancreatic duct
Cystic duct
14.
At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?
Relative lack of smooth muscles
Presence of valves
Proximity of the veins to lymphatics
Thin endothelial lining
15.
At the venous end of the capillary bed, the osmotic pressure is _____.
Greater than the hydrostatic pressure
Result in net outflow of fluids
Results in net absorption of fluids
No change occurs
16.
Erythroblastosis foetalis is due to the destruction of ______.
Foetal RBCs
Foetus suffers from atherosclerosis
Foetal WBCs
Foetus suffers from minamata
17.
Blood group is due to the presence or absence of surface _______.
Antigens on the surface of WBC
Antibodies on the surface of RBC
Antigens on the surface of RBC
Antibodies on the surface of WBC
18.
Choose the wrong statement among the following :
In earthworm, a single male genital pore is present.
Setae help in locomotion of earthworms.
Muscular layer in the body wall of earthworm is made up of circular muscles only
Typhlosole is part of the intestine of earthworm
19.
Prevention of substances from leaking across the tissue is provided by ______.
Tight junction
Adhering junction
Gap junction
Elastic junction
20.
Which of the following is an egg laying mammal?
Delphinus
Macropus
Ornithorhynchus
Equus
21.
Four chambered heart is present in _______.
Lizard
Snake
Scorpion
Crocodile
22.
The symmetry exhibited in cnidarians is ______.
Radial
Bilateral
Pentamerous radial
Asymmetrical
23.
Cladogram considers the following characters _______.
Physiological and Biochemical
Evolutionary and Phylogenetic
Taxonimic and systematic
None of the above
24.
Every unit of classification regardless of its rank is _____.
Taxon
Variety
Species
Strain
25.
A living organism is differentiated from non-living structure based on _______.
Reproduction
Growth
Metabolism
All the above
1.
(b)
(ii), (iii) and (iv)
2.
(a)
Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.
3.
(a)
Low secretion of growth hormone
4.
(b)
Clearing of wines
5.
(d)
Freely movable joints
6.
(a)
epimysium
7.
(b)
fascicle
8.
(c)
carbamino haemoglobin
9.
(c)
10.
(a)
Aquaporins
11.
(d)
They only participate in digestion of fats.
12.
(b)
Renin -Liver
13.
(a)
Hepatopancreatic duct
14.
(b)
Presence of valves
15.
(a)
Greater than the hydrostatic pressure
16.
(a)
Foetal RBCs
17.
(c)
Antigens on the surface of RBC
18.
(c)
Muscular layer in the body wall of earthworm is made up of circular muscles only
19.
(a)
Tight junction
20.
(c)
Ornithorhynchus
21.
(d)
Crocodile
22.
(a)
Radial
23.
(b)
Evolutionary and Phylogenetic
24.
(a)
Taxon
25.
(d)
All the above
11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - துணைப்பாடம் - யானை டாக்டர் Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
TN 11th Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set A
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