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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

TN 12th Biology Botany - Economically Useful Plants and Entrepreneurial Botany Sample Question Papers Study Material - QB365 Set A

Published on: 22/08/2026

Download 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.

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Std: 12th Standard - Biology

chapter: Botany - Economically Useful Plants and Entrepreneurial Botany - Sample Question Papers

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Questions:

Generic 2

3 x 2 = 6

Differentiate bio-medicines and botanical medicines.

Name the humors that are responsible for the health of human beings.

What is pseudo cereal? Give an example.

Generic 3

3 x 3 = 9

Write the uses of nuts you have studied.

What are millets? What are its types? Give example for each type.

Discuss which wood is better for making furniture.

Generic 5

1 x 5 = 5

Write the economic importance of rice.

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Answers Key:

Generic 2

3 x 2 = 6

Botanical medicines: Medicinal plants which are marketed as powders or in other modified forms.
Bio medicines: Derived from the bio molecules of all organisms include micro organisms.

Vatam, Pittam and Kapam.

1. It is used to describe foods that are prepared and eaten as a whole grain.
2. Ex. Quinoa. (Seeds from the Chenopodium quinoa) belong to the family Amaranthaceae.
3. Has carbohydrate protein have been eaten for 6000 years in Andes hilt region.

Generic 3

3 x 3 = 9

S. No	Common name	Botanical name	Uses
1.	Cashew Nut	Anacardium occidentale (Family: Anacardiaceae)	Garnishing sweets Ground for sauces _ Raw Kernels as snacks.

S.No	Common name	Botanical name
1	Foxtail Millet	Staria italica
2	Kodo Millet	Paspalum scrobiculatum

1. Tectona grandis is the plant gives wood better for making furniture.
2. It is one of the best timber in the world.
3. The heart wood is yellow to golden brown turner darker.
4. Durability and immune to attack of termites and fungi is well known.

Generic 5

1 x 5 = 5

Common Name Botanical name Origin and area Uses PADDY/ RICE:Semi
aquatic crop grown in standing water. Second
position next to wheat Oryza sativa South East Asia - China, lndia,
Thailand- Delta of
TamilNadu 1. Staple food with calcium in many southern hill regions of lndia.
2. Made in to Porridge and gruel.
3. Ragi malt - nutrient drink and fermented beverages