Tag: economic importance of plants and animals

Questions Related to economic importance of plants and animals

Assertion : Sunflower oil is suggested for heart patients.

Reason : Sunflower oil does not increase the cholesterol level


biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true

Show answer
Correct Option: A
Explanation:

(a) Sunflower oil can be safely used by heart patients because sunflower oil does not raise the cholesterol level in the blood.

SO the correct option is A.

Which of the following is most important source of food

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Lichen

  2. Angiosperms

  3. Algae

  4. Fungi

Show answer
Correct Option: B
Explanation:

Angiosperms are seeded plants and they serve as the main source of
food seeds.

So the correct option is B.

One of the following is a social foresting species with
multiple utility

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Mangifera indica (Mango)

  2. Leucaena leucocephala (Subabul)

  3. Borassus flabelliformis (Palmyrah palm)

  4. Rosa grandiflora (Rose)

Show answer
Correct Option: B
Explanation:

Leucaena leucocephala (Subabul) is a quick-growing
the small leguminous plant included in social
forestation.

So the correct option is B.

What statement is true about microspore of angiosperms.

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Resultant of mitotic division

  2. First cell of gamophytic generation

  3. Resultant of double fertilization

  4. First cell of endosperm

Show answer
Correct Option: B

Richest source of vitamin 'C' is ______________.

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Capsicum frutescens

  2. Emblica officinalis (Amla)

  3. Orange

  4. Lemon

Show answer
Correct Option: B
Explanation:

(b) The fruits of Emblica officinalis are great medicinal value and it is one of the richest source of vitamin C.

So, the correct answer is 'Emblica officinalis (Amla)'

In India the state famous for peanut cultivation is

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Gujarat

  2. Maharashtra

  3. Punjab

  4. Tamilnadu

Show answer
Correct Option: A
Explanation:

Gujarat tops with 27.87 percent of the total production of peanuts in India.

So the correct option is A.

During summer, Khas khas mats for cooling air are prepared
from the roots of

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Bambusa nana

  2. Saccharum manja

  3. Vetiveria zizanoides

  4. Setaria pumila

Show answer
Correct Option: C
Explanation:
Khas khas mats are widely used in i\India to beat the summer heat. They are prepared with dry grass (Vetiveria zizanoides) or hay which can store a lot of water and are hung around the house. Then the water present in these mats absorb the heat from the surroundings in the form of latent form of energy and thus evaporates.
So the correct option is C.

Which fibre crop occupies the maximum area in India or the most cultivated fibre crop in India is _______.

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Jute

  2. Cotton

  3. Flax

  4. Sisal

Show answer
Correct Option: B
Explanation:

 India is 10% producer of cotton (Gossypium herbaceum) in whole world. The fibers are obtained from the fruit, a capsule. Cotton is mainly cultivated in Punjab, Maharashtra, Gujarat. 

So, the correct answer is 'Cotton'

Cultivated cotton is obtained from ____________.

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Two species

  2. Three species

  3. Four species

  4. One species

Show answer
Correct Option: C
Explanation:

Cotton obtained from four species of Gossypium genus namely, Gossypium arboreus, G. herbaceum (2n,) G.
hirsutum, G. barbadense (4n).

So, the correct answer is 'Four species'

Which of the following is a pseudo-cereal crop

biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Maize/Zea mays

  2. Barley/Hordeum vulgare

  3. Buck wheat/Fagopyrum esculentum

  4. Rice/Oryza sativa

Show answer
Correct Option: C
Explanation:

A pseudocereal crop is a non-grass that are used in the same way as cereals (true cereals are grasses). Examples are amaranth, quinoa, and buckwheat.

So the correct option is C.