Tag: classification of angiosperms

Questions Related to classification of angiosperms

The largest fibre crop of east 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. Flax

  3. Cotton

  4. Coir

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Correct Option: A

Which of the following groups of characteristics is applicable to the timber obtained from Sal(Shorea)?

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

  1. Strong, durable, moderately heavy, takes good polish

  2. Strong, durable, heavy, does not take good polish

  3. Strong, durable, heavy. takes good polish

  4. Not strong, durable if not exposed, light, does not take good polish

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Correct Option: A

Which gas easily oxidize paints, textile fibers and dyes?

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

  1. $CO _{2}$

  2. $O _{2}$

  3. $O _{3}$

  4. $H _{2}S$

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Correct Option: C

Match List I with List II and select the correct answer using the codes below the lists:

List-I(Timber) List-II(Country)
A. Cedar 1. Myanmar
B. Douglas Fir 2. Canada
C. Mahogany 3. Mexico
D. Teak 4. Honduras
biology economic importance of plants and animals uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. A - 2, B - 3, C - 4, D - 1

  2. A - 3, B - 2, C - 4, D - 1

  3. A - 3, B - 2, C - 1, D - 4

  4. A - 2, B - 3, C - 1, D - 4

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Correct Option: B
Explanation:
 Cedar  Mexico
 Douglas Fir  Canada
 Mahogany  Honduras
 Teak  Myanmar

So, the correct option is 'A - 3, B - 2, C - 4, D - 1'.

Fibre of great commercial importance derived from the epidermis is

biology plants in daily life uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Flax

  2. Cotton

  3. Hemp

  4. Coir

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Correct Option: B

The Botanical name of ''indian rai''

biology plants in daily life uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Brassica campestris

  2. B. juncea

  3. B. nigra

  4. B. alba

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Correct Option: B
Explanation:

Brassica juncea, commonly known as Indian Rye or Indian mustard is a species of a mustard plant. Brassica species flowers are complete, bisexual, i.e., with functional male (androecium) and female (gynoecium), including stamens, carpels and ovary. Pollination is entomophilous i.e., by insects, or cleistogamy i.e., by self or allogamy i.e., by cross-pollination. 

So, the correct answer is 'B.juncea'

The botanical name of manila hemp is

biology plants in daily life uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Cannabis sativa

  2. Hibiscus cannabinus

  3. Musa textilis

  4. Agave sisalana

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Correct Option: C

Jute fibre deteriorates quickly due to presence of

biology plants in daily life uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. High cellulose

  2. Low cellulose

  3. High lignin

  4. Low lignin

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Correct Option: C

The cotton thread fibres are

biology plants in daily life uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Fibres taken out from stem

  2. Epidermal hairs of seeds

  3. Epidermal hairs of fruits

  4. Fibres taken out from roots

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Correct Option: B

Which of the following crop is most important for human

biology plants in daily life uses of angiosperms importance and classification of angiosperms classification of angiosperms importance of plants

  1. Barley

  2. Wheat

  3. Cotton

  4. Millet

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Correct Option: B
Explanation:

Wheat is the most widely grown crop in the world and provides 20% of the daily protein and of the food calories for 4.5 billion people. It is the second most important food crop in the developing world after rice. The most planted crops throughout the world are wheat and maize (corn). 

So, the correct answer is 'Wheat'