11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil கேடில் விழுச்செல்வம் - உரைநடை - தமிழகக் கல்வி வரலாறு Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - இலக்கணம் - பகுபத உறுப்புகள் Important Questions And Answers Study Material - QB365
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set B
Published on: 22/09/2018
Important Question paper 1mark
Download 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.
The development of adult characteristics in a moulting insect is promoted by __________
pheromone
thyroxine
juvenile hormone
ecdysone
2.
Cilia of gills of bivalve molluscs help in ______________
protection
respiration
excretion
feeding
3.
Animals devoid of respiratory, excretory and circulatory organs are belongs to phylum __________
echinodermata
platyhelminthes
porifera
mollusca
4.
Caterpiller and maggot are ____________
larvae
nymphs
adults
pupa
5.
Malpighian tubules are ___________
excretory organs of insects
excretory organs of frog
respiratory organs of insects
endocrine glands of insects
6.
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
aschelminthes (round worms)
ctenophores
sponges
coelenterates (cnidarians)
7.
Tube feet are the locomotory organs of ________
Platyhelminthes
Echinodermata
Mollusca
Arthropoda
8.
Mollusca is _______
Triploblastic, acoelomate
Triploblastic, coelomate
Diploblastic, acoelomate
Diploblastic, coelomate
9.
Medusa is the Reproductive organs of ___________
Hydra
Aurelia
obelia
sea anemone
10.
Cavity of coelenterates is called ____________
coelenteron
coelom
cavity
none of these
11.
Classification of sponges is primarily based on the __________
body organization
body plan
skeleton
canal system
12.
Two different kinds of leaf in the same plants is called ___________.
Isobilateral
Homophylly
Heterophylly
Centric
13.
___________ plant leaf is modified as Pitcher.
Acacia
Aloe
Nepenthes
Pisum
14.
Match.the following.
| A) Unifoliolate | 1. Aegle Marmelos |
| B) Bifoliolate | 2. Paris quadrifoliate |
| C) Trifoliate | 3. Bombax |
| D) Quadrifoliate | 4. Citrus |
| E) Multifoliate | 5. Zornia |
A - 4, B - 5, C - 1, D - 2, E - 3
A - 3, B - 4,C - 5,D - 1,E - 2
A-1, B-2, C-3, D-4, E-5
A - 4, B - 5, C - 3, D - 2, E - 1
15.
Lawn grass is stem modification of __________.
Runner
Stolon
Offset
Sucker
16.
The large flattened structure in Ruscus is ________.
Cladode
Cladophyll
Leaf scale
Petiole
17.
In Opuntia, the spines represent the modification of __________.
Stem
Leaves
Root
None of the above
18.
Stem is changed into fleshy green structure is called as _________.
Phyllode
Corm
Bulbil
Phylloclade
19.
Give an example for foliar buds _________.
Agave
Bryophyllum
Citrus
Duranta
20.
Photosynthetic roots are present in _________.
Viscum
Tinospora
Cassytha
Orabanche
21.
Which of them has Haustorial roots?
Cuscuta
Trapa
Tinospora
Avecinia
22.
Winged petiole is found in ___________
citrus
radish
acacia
peepal
23.
Potatoes are borne on _________
Primary roots
lateral roots
Adventitious roots
axil of scaly leaves
24.
Epiphytic roots are found in __________
Indian rubber
Orchid
Tinospora
Cuscuta
25.
Venation is a term used to describe the pattern of arrangement of ___________
floral organs
veins and veinlets in a lamina
flower in inflorescence
all of them
26.
Match the following:
| (i) Pothos | (a) Stem climber |
| (ii) Ipomoea | (b) Thorn climber |
| (iii) Bignonia | (c) Root climber |
| (iv) Carissa | (d) Hook climber |
(i)-(d), (ii)-(b), (iii)-(a), (iv)-(c)
(i)-(d), (ii)-(c), (iii)-(b), (iv)-(a)
(i)-(b), (ii)-(a), (iii)-(d), (iv)-(c)
(i)-(c), (ii)-(a), (iii)-(d), (iv)-(b)
27.
The root system of the plant is generally _____________
positively geotropic and negatively phototrophic in nature
negatively geotrophic and positively phototrophic in nature
negatively geotrophic and positively phototrophic in nature
negatively geotrophic and negatively phototrophic in nature
28.
Phyllanthus amarus belongs to the group ____________
Shrubs
Herbs
Climbers
Trees
29.
30.
The element which is not remobilized?
Phosphorous
Potassium
Calcium
Nitrogen
31.
If a plant is provided with all mineral nutrients but, Mn concentration is increased, what will be the deficiency?
Mn prevent the uptake of Fe, Mg but not Ca
Mn increase the uptake of Fe, Mg and Ca
Only increase the uptake of Ca
Prevent the uptake Fe, Mg, and Ca
32.
Pneumatic bones are seen in _______.
Mammalia
Aves
Reptilia
Sponges
33.
Which of the following is an egg laying mammal?
Delphinus
Macropus
Ornithorhynchus
Equus
34.
The respiratory pigment in cockroach is _____.
Haemoglobin
Haemocyanin
Oxyhaemoglobin
None of the above
35.
Which of the following is a crustacean?
Prawn
Snail
Sea anemone
Hydra
36.
Nephridia of Earthworms are performing the same functions as ______.
Gills of prawn
Flame cells of Planaria
Trachea of insects
Nematoblasts of Hydra
37.
In which of the following organisms, self fertilization is seen.
Fish
Round worm
Earthworm
Liver fluke
38.
Match
| 1 | Radical buds | i | Agave |
| 2 | Foliar bud | ii | Millingtonia |
| 3 | Cauline bud | iii | Begonia |
| iv | Solanum |
1 - iii, 2 - iv, 3 - i
1 - iii, 2 - i, 3 - ii
1 - ii, 2 - i, 3 - iv
1 - ii, 2 - iii, 3 - i
39.
Which one of the following is not a characteristic of root?
Presence of root cap
Presence of unicellular hair
Presence of chlorophyll
Absence of buds
40.
Stem modified into a flattened photosynthetic structure _____
Phylloclade
Bulbil
Phyllode
Tendril
41.
The terminal leaflets are modified into __________ in Bignonia
tendril
hooks
spines
foliar roots
42.
The leaf of Coriandrum is described as _____
bipinnate
unipinnate
decompound
tripinnate
43.
Stilt roots are also called _____
Pillar roots
Buttress root
Clasping root
Brace roots
44.
The root in Dahlia is described as ___
Annulated
Fasciculated
Nodulose
Beaded
45.
______ is a submerged aquatic plant.
Suaeda
Rhizophora
Vallisneria
Eichhornia
46.
_____ is an example for Lianas.
Bauhinia vahlii
Mango
Vanda
Nepenthes
47.
The growing tip of the root _____.
Root cap
Meristematic zone
Zone of elongation
Zone of maturation
48.
In an inflorescence where flowers are borne laterally in an acropetal succession the position of the youngest floral bud shall be ______.
Proximal
Distal
Intercalary
Anywhere
49.
Aggregate fruit develops from _____.
Multicarpellary, apocarpous ovary
Multicarpellary, syncarpous ovary
Multicarpellary ovary
Whole inflorescence
50.
Gynoecium with united carpels is termed as ______.
Apocarpous
Multicarpellary
Syncarpous
None of the above
1.
(d)
ecdysone
2.
(b)
respiration
3.
(c)
porifera
4.
(a)
larvae
5.
(a)
excretory organs of insects
6.
(a)
aschelminthes (round worms)
7.
(b)
Echinodermata
8.
(b)
Triploblastic, coelomate
9.
(b)
Aurelia
10.
(a)
coelenteron
11.
(c)
skeleton
12.
(c)
Heterophylly
13.
(c)
Nepenthes
14.
(a)
A - 4, B - 5, C - 1, D - 2, E - 3
15.
(a)
Runner
16.
(b)
Cladophyll
17.
(b)
Leaves
18.
(d)
Phylloclade
19.
(b)
Bryophyllum
20.
(b)
Tinospora
21.
(a)
Cuscuta
22.
(a)
citrus
23.
(d)
axil of scaly leaves
24.
(b)
Orchid
25.
(b)
veins and veinlets in a lamina
26.
(d)
(i)-(c), (ii)-(a), (iii)-(d), (iv)-(b)
27.
(c)
negatively geotrophic and positively phototrophic in nature
28.
(b)
Herbs
29.
(c)
30.
(c)
Calcium
31.
(a)
Mn prevent the uptake of Fe, Mg but not Ca
32.
(b)
Aves
33.
(c)
Ornithorhynchus
34.
(d)
None of the above
35.
(a)
Prawn
36.
(b)
Flame cells of Planaria
37.
(d)
Liver fluke
38.
(d)
1 - ii, 2 - iii, 3 - i
39.
(c)
Presence of chlorophyll
40.
(a)
Phylloclade
41.
(b)
hooks
42.
(c)
decompound
43.
(d)
Brace roots
44.
(b)
Fasciculated
45.
(c)
Vallisneria
46.
(a)
Bauhinia vahlii
47.
(b)
Meristematic zone
48.
(a)
Proximal
49.
(a)
Multicarpellary, apocarpous ovary
50.
(c)
Syncarpous
11th Standard Syllabus & Materials
11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - செய்யுள் - காவடிச்சிந்து Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set B
NEW11th Standard
Tamilnadu 11th Standard Tamil பீடு பெற நில் - உரைநடை - மலை இடப்பெயர்கள் : ஓர் ஆய்வு Important Questions And Answers Study Material - QB365 Set A
NEW11th Standard
Tamilnadu 11th Standard Tamil மாமழை போற்றுதும் - செய்யுள் - ஐங்குறுநூறு Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 11th Standard Subjects
Maths
Commerce
Economics
Biology
Business Maths and Statistics
Accountancy
Computer Science
Physics
Chemistry
Maths
Biology
Economics
Physics
Chemistry
History
Business Maths and Statistics
Computer Science
Accountancy
Computer Applications
History
Computer Technology
Commerce
Computer Applications
Computer Technology
Tamil
English
French
Tamilnadu Stateboard Standards
