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: 24/07/2018
In this question paper, it covers the important one mark questions from the Bio-Botany. Questions are covers from the book back and the creative questions. Please Click Here to get the answer to this question paper.
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.
In Polyalthia longifolia, the stem is_____________.
decurrent
caudex
excurrent
culm
2.
The cells of this region undergo active cell division____________.
root hair zone
maturation zone
elongation zone
meristematic zone
3.
The __________ eventually stretches right across the cell forming the middle lamella.
Cytokinesis
Cell plate
Genetic stability
Repair of tissues
4.
______________ carries a copy of instructions for assembling amino acids into proteins.
Ribonucleic acid
messenger RNA
Prokaryotic mRNA
transfer RNA
5.
______________ could also be termed as poisons.
Activation energy
Inhibitors
Competitive inhibitors
Non - competitive inhibitors
6.
Chromosome contains a short, constricted region called __________ .
Centromere
Homologous pairs
Chromatids
Haploid state
7.
The individual polypeptide chains of the protein are called ______________
Quaternary protein structure
Subunits
Enzymes
Antibodies
8.
Chromatids are identical and are called______________________
Satellite
Kinetochore
Polycentric
Sister chromatids
9.
| (a) Single bonded | (i) Palmitic acid, Stearic acid |
| (b) Double bonded | (ii) Palmitic acid, Stearic acid |
| (c) Single bonded | (iii) Oleic acid, Linoleic acid |
| (d) Double bonded | (iv) Oleic acid, Linoleic acid |
A & D are correct; B & C are incorrect
A & B are correct; C & D are incorrect
A & C are correct; B & D are incorrect
A & D are incorrect; B & C are correct
10.
____________ are made up of successive layers of amylose and amylopectin.
Polysaccharide
Glycosidic bond
Cellulose
Starch
11.
_____________________was discovered by Harry Beevers.
Glyoxysome
Microbodies
Sphaerosome
Centrioles
12.
____________ are those that are required for the basic metabolic processes like photosynthesis.
Water
Hydrogen
Organic compounds
Primary metabolites
13.
Unique characteristic of__________________________is that they are inherited from female parent only.
Golgi bodies
Mitochondria
Mitochondrial DNA
Chloroplasts
14.
Viroids differ from viruses in having ________
DNA molecules with protein coat
DNA molecules without protein coat
RNA molecules with protein coat
RNA molecules without protein coat
15.
Compound microscope was invented by___________________________________
Z. Jansen
Compound microscope
Microscope
Bright field microscope.
16.
In Red algae female sex organ is called as ___________ .
Trichogine
Ovule
Oogamete
Carpogonium
17.
Blue green algae is otherwise called ___________.
Xanthophyceae
Batillariophyceae
Cyanophyceae
Myxophyceae
18.
Prions are infections
Nucleic acid
Lipids
Proteins
Carbohydrates
19.
Give an example for cuboid symmetry.
Adeno virus
Influenza virus
TMV
Bacteriophage.
20.
Tobacco mosaic virus is a:
romboid shaped helical virus
rod shaped helical virus
rectangular shaped virus
triangular shaped helical virus
21.
Glycogen is not seen in the organs of human body ___________
Muscle fibre
Liver
Brain
Kidney
22.
Pulmonary tuberculosis is caused by ___________
Funaria hygrometrica
Sphagnu
Marchantia polynmorpha
Riccia
23.
For every CO2 molecule entering the C3 cycle, the number of ATP & NADPH required ________.
2ATP + 2NADPH
2ATP + 3NADPH
3ATP + 2NADPH
3ATP + 3NADPH
24.
Which among the following is correct?
i. Apoplast is fastest and operate in nonliving part.
ii. Transmembrane route includes vacuole.
iii. Symplast interconnect the nearby cell through plasmadesmata.
iv. Symplast and transmembrane route are in living part of the cell
i and ii
ii and iii
iii and iv
i, ii, iii, iv
25.
What is the fate of primary xylem in a dicot stem showing extensive secondary growth?
It is retained in the centre of the axis
It gets crushed
May or may not get crushed
It gets surrounded by primary phloem
26.
Usually, the monocotyledons do not increase their girth, because ____.
They possess actively dividing cambium
They do not possess actively dividing cambium
Ceases activity of cambium
All are correct
27.
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
28.
RNA is the polymer of ____________
Ribonucleotide
Ribonucleoside
Deoxyribonucleotide
Ribosome
29.
Opposite decussate phyllotaxy is found in ____
Calotropis
Mango
Hibiscus
Nerium
30.
A marine cyanobacterial species _______________
Trichodesmium
Gloeocapsa
Nostoc
Cycas
31.
The middle lamella is made up of ___________.
Muramic acid
Calcium pectate
Phosphoglycerol
Hemicellulose
32.
TMV has a molecular weight of _____________ Daltons.
39 \(\times\) 106
38 \(\times\) 105
39 \(\times\) 107
39 \(\times\) 1010
33.
Digestion of cell organelles by the cell is called_____
Phagocytosis
Pinocytosis
Autophagy
Autolysis
34.
Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of __________
Tuberous root
Beaded root
Moniliform root
Nodulose root
35.
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
36.
Which one is a incorrect pair?
G2 phase - Growth phase
M phase - Interphase
S phase - DNA synthesis
G1 phase - RNA and DNA synthesis
37.
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
38.
Living organisms constitute __________
Living world
Non-living world
Animal kingdom
Plant kingdom
39.
Monotropa derives nutrition by ___________
Root Nodules
Lichens
Mycorrhizae
Roots
40.
Identify the correctly matched pair.
Actinomycete - Late blight
Mycoplasma - Lumpy jaw
Bacteria - Crown gall
Fungi - Sandal spike
41.
Identify the incorrect statement about the Gram positive bacteria.
Teichoic acid absent
High percentage of peptidoglycan is found in cell wall
Cell wall is single layered
Lipopolysaccharide is present in cell wall
42.
Proteins perform many physiological functions. For example some functions as enzymes. One of the following represents an additional function that some proteins discharge:
Antibiotics
Pigment conferring colour to skin
Pigments making colours of flowers
Hormones
43.
An example of feedback inhibition is
Cyanide action on cytochrome
Sulpha drug on folic acid synthesiser bacteria
Allosteric inhibition of hexokinase by glucose-6-phosphate
The inhibition of succinic dehydrogenase by malonate
44.
Many cells function properly and divide mitotically even though they do not have.
plasma membrane
cytoskeleton
mitochondria
plastids
45.
The taxonomy which involves the similarities & dissimilarities among the immune system of different taxa is termed as ______.
Chemotaxonomy
Molecular systematics
Serotaxonomy
Numerical taxonomy
46.
Colchicine prevents the mitosis of the cells at which of the following stage ______.
Anaphase
Metaphase
Prophase
Interphase
47.
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
48.
Tubers store food materials in _____
Oedogonium
Chara
Ulothrix
Fucus
49.
The haploid number of chromosome for an Angiosperm is 14, the number of chromosome in its endosperm would be
7
14
42
28
50.
Which of following represents gametophytic generation in pteridophytes?
Prothallus
Thallus
Cone
Rhizophore
1.
(c)
excurrent
2.
(d)
meristematic zone
3.
(a)
Cytokinesis
4.
(a)
Ribonucleic acid
5.
(d)
Non - competitive inhibitors
6.
(a)
Centromere
7.
(b)
Subunits
8.
(d)
Sister chromatids
9.
(a)
A & D are correct; B & C are incorrect
10.
(d)
Starch
11.
(a)
Glyoxysome
12.
(d)
Primary metabolites
13.
(b)
Mitochondria
14.
(d)
RNA molecules without protein coat
15.
(a)
Z. Jansen
16.
(d)
Carpogonium
17.
(c)
Cyanophyceae
18.
(c)
Proteins
19.
(a)
Adeno virus
20.
(b)
rod shaped helical virus
21.
(c)
Brain
22.
(c)
Marchantia polynmorpha
23.
(c)
3ATP + 2NADPH
24.
(d)
i, ii, iii, iv
25.
(b)
It gets crushed
26.
(b)
They do not possess actively dividing cambium
27.
(a)
Xylem would be on top and the phloem on the bottom
28.
(a)
Ribonucleotide
29.
(a)
Calotropis
30.
(a)
Trichodesmium
31.
(b)
Calcium pectate
32.
(a)
39 \(\times\) 106
33.
(c)
Autophagy
34.
(d)
Nodulose root
35.
(b)
Tuberous root
36.
(b)
M phase - Interphase
37.
(a)
Proximal
38.
(a)
Living world
39.
(c)
Mycorrhizae
40.
(c)
Bacteria - Crown gall
41.
(d)
Lipopolysaccharide is present in cell wall
42.
(d)
Hormones
43.
(c)
Allosteric inhibition of hexokinase by glucose-6-phosphate
44.
(d)
plastids
45.
(c)
Serotaxonomy
46.
(b)
Metaphase
47.
(c)
Chromosomes will not segregate
48.
(b)
Chara
49.
(c)
42
50.
(a)
Prothallus
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