8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 04/09/2019
Plant Kingdom
Download Tamil Nadu 8th Standard Science 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 Science Test1.
The reserve food material of fungi are _______ and ______
2.
Monocotyledon seeds bear only _______cotyledon.
3.
The word ‘Taxonomy’ is derived from __________.
4.
Penicillin is an antibiotic, which is extracted from
Algae
Fungi
Bryophytes
Pteridophytes
5.
The well-developed sporophytic plant body is seen in
Bryophytes
Pteridophytes
Gymnosperms
Angiosperms
6.
An example for colonial form of algae is
Oscillatoria
Nostac
Volvox
Chlorella
7.
Solanum trilobatum is the binomial name of Thoothuvalai. Here the word ‘Solanum’ refers to
Species
Genus
Class
Orders
8.
Artificial system of classification is based on the vegetative characters of the plant.
9.
Binomial name should contains more than two words.
10.
In polypetalae, the petals are free.
11.
Mention the four types of classification
12.
Seeds of gymnosperm plants are naked. Why?
13.
How many classes are there in Bryophytes? What are they?
14.
Write the differences between algae and fungi.
15.
Write the economic importance of Gymnosperms.
16.
Draw the outline of Bentham and Hooker's system of classification.
1.
( )
glycogen and oil
2.
( )
one
3.
( )
Greek words Taxis and Nomos
4.
(b)
Fungi
5.
(c)
Gymnosperms
6.
(c)
Volvox
7.
(b)
Genus
8.
(b)
9.
(b)
10.
(a)
11.
1. Artificial system of classification
2. Natural system of classification
3. Phylogenetic system of classification
4. Modern system of classification
12.
Seeds of gymnosperm plants are naked because the ovule is not enclosed by ovary.
13.
There are three classes in Bryophyta. They are:
1. Class I - Hepaticae (Liverworts) eg: Riccia
2. Class II - Anthocerotae (Hornworts) eg. Anthoceros
3. Class III - Masci (Mosses) eg.Funtaria
14.
| S.No | Algae | Fungi |
| 1 | Algae are autotrophs | Fungi are heterotrophs |
| 2 | It has pigments | It has no pigments |
| 3 | Reserve food material is starch. | Reserve food materials are glycogen and oil |
| 4 | Some algae are Prokaryotic in nature | All are eukaryotic nature |
| 5 | lEg; Nostac, Anabenae | Eg: Agaricus |
15.
i) Woods of many conifers are used in the paper industries Eg: pinus, Agathis.
ii) Conifers are the sources of softwood for construction, packing and plywood industry Eg: Cedrus, Agathis.
iii) Turpentine is an essential oil used for paint preparation extracted from the resin of pinus
iv) It is also used medicinally for relief from pain and bronchitis etc.
v) Seeds of Pinus gerardiana are edible.
vi) Ephedrine is an alkaloid extracted from Ephedra. It cures asthma and respiratory problem.
vii) Araicaroa bidwillii is an ornamental plant.
16.
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
