Tag: classification of plants

Questions Related to classification of plants

Identify the scientists who worked extensively on chlorophyllous and non chlorophyllous thallophytes respectively :
(a) Iyengar
(b) Swaminathan
(c) Mehta
(d) Maheshwari

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  1. a, d

  2. b, c

  3. c, d

  4. a, c

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Correct Option: D
Explanation:

Iyengar and mehta are scientists who worked extensively on chlorophyllous and non chlorophyllous thallophytes.

So the correct option is D.

Mature gymnosperms lack

biology classification of plants phanerogams gymnosperms angiosperms

  1. Seeds

  2. Leaves

  3. Flowers

  4. Vascular tissue

  5. Woody growth

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Correct Option: C
Explanation:

Gymnosperms are seed-bearing plants but lack the specialized features  of flowering plants. The gymnosperms do not bear flowers hence the seeds are naked i.e these are not enclosed within fruits.

Which of the following has seed with a covering?

biology classification of plants phanerogams gymnosperms angiosperms

  1. Dicots

  2. Angiosperms

  3. Gymnosperms

  4. Monocots

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Correct Option: B

Which of the following pairs produces spores and seeds respectively?

biology classification of plants phanerogams gymnosperms angiosperms

  1. Monocot and dicot

  2. Algae and fungi

  3. Mosses and ferns

  4. Ferns and gymnosperms

  5. Gymnosperms and angiosperms

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Correct Option: D

Which of the following is not a characteristic of gymnosperms?

biology classification of plants phanerogams gymnosperms angiosperms

  1. Seed plants

  2. Predominantly diploid

  3. to flower

  4. Conifers

  5. Naked seed plants

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Correct Option: C

Which group of plants bear flowers?

biology classification of plants phanerogams gymnosperms angiosperms

  1. Pteridophytes

  2. Angiosperms

  3. Gymnosperms

  4. Bryophytes

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Correct Option: B
Explanation:

Angiosperms or flowering plants include all those plants in which seeds are enclosed in the fruits. An ovule is well developed in angiosperms. Thus option B is the correct answer.

Vessels are found in

biology classification of plants phanerogams gymnosperms angiosperms

  1. All pteridophyta

  2. All angiosperms

  3. Some gymnosperms

  4. Both (B) and (C)

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Correct Option: D
Explanation:

Vessels are present in most of the angiosperms and also in certain lower plants like Gnetum, Marsilea and Selaginella. Tracheids are found in pteridophytes, most of the gymnosperms and a few angiosperms.
Thus, the correct answer is option D.