11th Standard Syllabus & Materials
11th Standard
TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil மொழி கலை -செய்யுள் - ஒவ்வொரு புல்லையும் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - துணைப்பாடம் - வாடிவாசல் Important Questions And Answers Study Material - QB365 Set A
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TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A

Published on: 08/06/2021
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.
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.
Seed dormancy allows the plants to
overcome unfavourable climatic conditions
develop healthy seeds
reduce viability
prevent deterioration of seeds
2.
If the diameter of the pulley is 12 inches, length of pointer is 10 inches and distance travelled by pointer is 5 inches. Calculate the actual growth in length of plant.
3 inches
6 inches
12 inches
30 inches
3.
The compound which links glycolysis and Krebs cycle is _______.
Succinic acid
Pyruvic acid
Acetyl CoA
Citric acid
4.
The element which is not remobilized?
Phosphorous
Potassium
Calcium
Nitrogen
5.
When a leaf trace extends from a vascular bundle in a dicot stem, what would be the arrangement of vascular tissues in the veins of the leaf?
Xylem would be on top and the phloem on the bottom
Phloem would be on top and the xylem on the bottom
Xylem would encircle the phloem
Phloem would encircle the xylem
6.
Refer to the given figure and select the correct statement.

i. A, B, and C are histogen of shoot apex
ii. A Gives rise to medullary rays.
iii. B Gives rise to cortex
iv. C Gives rise to epidermis
i and ii only
ii and iii only
i and iii only
iii and iv only
7.
Bryophyllum and Dioscorea are example for ______.
Foliar bud, apical bud
Foliar bud, cauline bud
Cauline bud, apical bud
Cauline bud, foliar bud
8.
Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of __________
Tuberous root
Beaded root
Moniliform root
Nodulose root
9.
When the root is thick and fleshy, but does not taken a definite shape, it said to be _________
Nodulose root
Tuberous root
Monilliform root
Fasiculated root
10.
Roots are ______.
Descending, negatively geotrophic, positively phototropic
Descending, positively geotrophic, negatively phototrophic
Ascending, positively geotrophic, negatively phototrophic
Ascending, negatively geotrophic, positively phototrophic
11.
12.
Aggregate fruit develops from _____.
Multicarpellary, apocarpous ovary
Multicarpellary, syncarpous ovary
Multicarpellary ovary
Whole inflorescence
13.
Vexillary aestivation is characteristic of the family _____.
Fabaceae
Asteraceae
Solanaceae
Brassicaceae
14.
Identify the Archaebacterium.
Acetobacter
Erwinia
Treponema
Methanobacterium
15.
Which one of the following statement about virus is correct?
Possess their own metabolic system
They are facultative parasites
They contain DNA or RNA
Enzymes are present
16.
The most basic amino acid is
Arginine
Histidine
Glycine
Glutamine
17.
Keeping in view the fluid mosaic model for the structure of cell membrane which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other.
Neither lipid nor proteins can flip-flop
Both lipid and proteins can flip flop
While lipids can rarely flip-flop proteins cannot
While proteins can flip-flop lipids cannot
18.
Many cells function properly and divide mitotically even though they do not have.
plasma membrane
cytoskeleton
mitochondria
plastids
19.
The two subunits of ribosomes remain united at critical ion level of _______.
Magnesium
Calcium
Sodium
Ferrous
20.
Flowers are zygomorphic in ______.
Ceropegia
Thevetia
Datura
Solanum
21.
The taxonomy which involves the similarities & dissimilarities among the immune system of different taxa is termed as ______.
Chemotaxonomy
Molecular systematics
Serotaxonomy
Numerical taxonomy
22.
Phylogenetic classification is the most favoured classification because it reflects _______.
Comparative Anatomy
Number of flowers produced
Comparative cytology
Evolutionary relationships
23.
Specimen derived from non-original collection serves as the nomenclature type, when original specimen is missing. It is known as ________ .
Holotype
Neotype
Isotype
Paratype
24.
Anaphase promoting complex APC is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in human cell, which of the following is expected to occur?
Chromosomes will be fragmented
Chromosomes will not condense
Chromosomes will not segregate
Recombination of Chromosomes will occur
25.
If mitotic division is restricted in G1 phase of the cell cycle then the condition is known as _____.
S Phase
G2 Phase
M Phase
G0 Phase
1.
(a)
overcome unfavourable climatic conditions
2.
(a)
3 inches
3.
(c)
Acetyl CoA
4.
(c)
Calcium
5.
(a)
Xylem would be on top and the phloem on the bottom
6.
(c)
i and iii only
7.
(b)
Foliar bud, cauline bud
8.
(d)
Nodulose root
9.
(b)
Tuberous root
10.
(b)
Descending, positively geotrophic, negatively phototrophic
11.
(a)
12.
(a)
Multicarpellary, apocarpous ovary
13.
(a)
Fabaceae
14.
(d)
Methanobacterium
15.
(c)
They contain DNA or RNA
16.
(a)
Arginine
17.
(c)
While lipids can rarely flip-flop proteins cannot
18.
(d)
plastids
19.
(a)
Magnesium
20.
(a)
Ceropegia
21.
(c)
Serotaxonomy
22.
(d)
Evolutionary relationships
23.
(b)
Neotype
24.
(c)
Chromosomes will not segregate
25.
(d)
G0 Phase
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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