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Published on: 13/05/2022
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latest Creative QuestionsDownload Tamil Nadu 12th 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.
Coconut is an albuminous seed. Why?
2.
What happens to the following floral parts, after the fertilization process?
(a) Ovary
(b) Secondary nucleus
(c) Outer integument of ovule
(d) Funicle
3.
What is pollen pistil interaction?
4.
Mention the types of ovule seen in the members of
(a) Cactaceae
(b) Leguminosae
(c) Polygonaceae
(d) Primulaceae.
5.
Name the vegetative propagules of the following plants
(a) Allium cepa
(b) Zingiber Officinalis
(c) Agave
(d) Colocasia
1.
Since coconut seed possesses endosperm, It is called as albmunious seed. Endosperm nourishes the embryo during seed germination.
2.
(a) Ovary ⟶ Fruit
(b) Secondary nucleus ⟶ Endosperm
(c) Outer integument of ovule ⟶ Outer seed coat (Testa)
(d) Funicle ⟶ Stalk of the seed
3.
The events from pollen deposition on the stigma to the entry of pollen tube into the ovule is called pollen - pistil interaction. It is a dynamic process which involves recognition of pollen and to promote or inhabit its germination and growth.
4.
(a) Cactaceae - Circinotropous ovule
(b) Leguminosae - Campylotropous ovule
(c) Polygonaceae Orthotropous ovule
(d) Primulaceae - Hemianatropous ovule
5.
(a) Allium cepa - Bulb
(b) Zingiber officinal is - Rhizome
(c) Agave - Bulbils
(d) Colocasia - Corm
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
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Maths
Chemistry
Physics
Computer Technology
History
Accountancy
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