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Chapters
2: Classical Genetics
3: Chromosomal Basis of Inheritance
4: Principles and Processes of Biotechnology
5: Plant Tissue Culture
6: Principles of Ecology
7: Ecosystem
8: Environmental Issues
9: Plant Breeding
▶ 10: Economically Useful Plants and Entrepreneurial Botany
![Samacheer Kalvi solutions for Botany [English] Class 12 TN Board chapter 10 - Economically Useful Plants and Entrepreneurial Botany - Shaalaa.com](/images/botany-english-class-12-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Botany [English] Class 12 TN Board chapter 10 - Economically Useful Plants and Entrepreneurial Botany")
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Solutions for Chapter 10: Economically Useful Plants and Entrepreneurial Botany
Below listed, you can find solutions for Chapter 10 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Botany [English] Class 12 TN Board.
Samacheer Kalvi solutions for Botany [English] Class 12 TN Board 10 Economically Useful Plants and Entrepreneurial Botany Evaluation [Pages 258 - 261]
Consider the following statements and choose the right option.
- Cereals are members of the grass family.
- Most of the food grains come from monocotyledon.
(i) is correct and (ii) is wrong
Both (i) and (ii) are correct
(i) is wrong and (ii) is correct
Both (i) and (ii) are wrong
Assertion: Vegetables are important part of healthy eating.
Reason: Vegetables are succulent structures of plants with pleasant aroma and flavours.
Assertion is correct, Reason is wrong
Assertion is wrong, Reason is correct
Both are correct and reason is the correct explanation for assertion.
Both are correct and reason is not the correct explanation for assertion.
Groundnut is native of ______
Philippines
India
North America
Brazil
Statement A: Coffee contains caffeine
Statement B: Drinking coffee enhances cancer
A is correct, B is wrong
A and B – Both are correct
A is wrong, B is correct
A and B – Both are wrong
This is an example of brush fibre yielding plant
Cyperus
Neem
Cotton
Palm
Tectona grandis is coming under family
Lamiaceae
Fabaceae
Dipterocaipaceae
Ebenaceae
Tamarindus indica is indigenous to
Tropical African region
South India, Sri Lanka
South America, Greece
India alone
New world species of cotton
Gossipium arboretum
G.herbaceum
Both a and b
G.barbadense
Assertion: Turmeric fights various kinds of cancer
Reason: Curcumin is an anti-oxidant present in turmeric
Assertion is correct, Reason is wrong
Assertion is wrong, Reason is correct
Both are correct
Both are wrong
Find out the correctly matched pair.
Rubber - Shorea robusta
Dye - Indigofera annecta
Timber - Cyperus papyrus
Pulp - Hevea brasiliensis
Find out the wrongly paired one
Burma teak - Tectona grandis
Rosewood - Dalbergia sp.
Ebony - Diaspyros eberum
Henna - Shorea robusta
Observe the following statements and pick out the right option from the following:
Statement I – Perfumes are manufactured from essential oils.
Statement II – Essential oils are formed in different parts of the plants.
Statement I is correct
Statement II is correct
Both statements are correct
Both statements are wrong
Observe the following statements and pick out the right option from the following:
Statement I: The drug sources of Siddha include plants, animal parts, ores, and minerals.
Statement II: Minerals are used for preparing drugs with a long shelf-life.
Statement I is correct
Statement II is correct
Both statements are correct
Both statements are wrong
Select the mismatch.
Andrographis – hepato protective
Adhatada – broncho dialator
Phyllanthus – anti-diabetic
Curcumin – anti-oxidant
The active principle trans-tetra hydro canabial is present in
Opium
Curcuma
Marijuana
Andrographis
Which one of the following matches is correct?
Palmyra - Native of Brazil
Saccharun - Abundant in Kanyakumari
Steveocide - Natural sweetener
Palmyra sap - Fermented to give ethanol
The only cereal that has originated and domesticated from the New World.
Oryza sativa
Triticum asetumn
Triticum duram
Zea mays
Which of the following statement(s) is/are correct?
- Mushrooms are the fruiting body of edible fungi.
- Single-cell proteins are the dried cells of micro-organisms.
- Regular use of liquid seaweed fertilizer will help plants to withstand environmental stress.
- SCP can completely replace conventional protein sources.
(i) and (ii),
(i) and (iii),
(i) and (iv),
(i) alone
Select the incorrect pair/pairs of statements about single-cell protein
- Chemical pesticides - Safe for human and the environment
- Mushrooms - White vegetable
- Zarrouk medium- Culture medium
- Seaweed - Rich in potassium
(i) and (ii),
(i) and (iv),
(i) and (iii),
(i) alone
Match the following pairs about mushroom cultivation.
| A. | Straw size | (i) | 75-85% |
| B. | Distant between blocks | (ii) | 20 cm |
| C. | Capsize at harvesting | (iii) | 2-4 inch |
| D. | Relative humidity | (iv) | 10-12 cm |
A - (ii), B - (iii), C - (iv), D - (i)
A - (iii), B - (ii), C - (iv), D - (i)
A - (ii), B - (iii), C - (iv), D - (i)
A - (i), B - (ii), C - (iii), D - (iv)
Assertion: In Spirulina culture, half of the required nutrients added first and the rest in later.
Reason: If all the nutrients are added first, it will affect the culture's growth.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
Both A and R are false.
Write the cosmetic uses of Aloe.
What is pseudo cereal? Give an example.
What are cucurbits?
Why it is considered an important summer vegetable?
Which fruit is rich in potassium? Mention its economic importance.
Discuss which wood is better for making furniture.
A person got irritation while applying chemical dye. What would be your suggestion for an alternative?
Name the humors that are responsible for the health of human beings.
Give definitions for organic farming?
Define bonsai?
What is a terrarium?
Which is called the “King of Bitters”? Mention their medicinal importance.
Differentiate bio-medicines and botanical medicines.
Write the origin and area of cultivation of green gram and red gram.
What are millets? What are its types? Give example for each type.
Write the economic importance of Lycopersicon esculentum.
If a person drinks a cup of coffee daily it will help him for his health. Is this correct? If it is correct, list out the benefits.
Enumerate the uses of turmeric.
What is TSM? How does it classify and what does it focus on?
What are the advantages of cultivation of aromatic plants?
How will you make a Bonsai tree?
What is NMPB?
Write the uses of nuts you have studied.
Give an account of the role of Jasminum and Rosa in perfuming.
Give an account of the active principle and medicinal values of any two plants you have studied.
Write the economic importance of rice.
Which TSM is widely practiced and culturally accepted in Tamil Nadu? - explain.
What are psychoactive drugs? Add a note Marijuana and Opium
Describe the types of fibres.
What are the King and Queen of spices? Explain about them and their uses.
How will you prepare an organic pesticide for your home garden with the vegetables available from your kitchen?
What will you do if you want to make a portable indoor greenery?
Give an account of the cultivation of Gloriosa superba/Cymbopogon citrates.
Solutions for 10: Economically Useful Plants and Entrepreneurial Botany
Samacheer Kalvi solutions for Botany [English] Class 12 TN Board chapter 10 - Economically Useful Plants and Entrepreneurial Botany
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Concepts covered in Botany [English] Class 12 TN Board chapter 10 Economically Useful Plants and Entrepreneurial Botany are Timber, Latex, Pulp Wood, Dye, Cosmetics, Traditional Systems of Medicines, Medicinal Plants, Entrepreneurial Botany, Food Plants, Spices and Condiments, Fibres.
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