Tag: uses of angiosperms

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Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

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

  1. Mangifera indica (Mango)

  2. Leucaena leucocephala (Subabul)

  3. Borassus flabelliformis (Palmyrah palm)

  4. Rosa grandiflora (Rose)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leucaena leucocephala (Subabul) is a social foresting species with multiple utility like green manure, biomass production, food for humans, pulpwood for paper industry.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

Among the plants listed, point out which one does not fit into ecological group represented by other plants 

  1. Acacia

  2. Rhizophora / Vallisneria

  3. Euphorbia

  4. Aloe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Acacia, Aloe, Euphorbia are xerophytes plants while Vallisneria is hydrophyte and Rhizophora belongs to the halophyte plant group.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

Development of microsporangium in angiosperms and gymnosperms is of.

  1. Eusporangiate type

  2. Leptosporangiate type

  3. Monosporic type

  4. Tetrasporic type
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In angiosperms and gymnosperms, the microsporangium develops from a group of archesporial cells, which is characteristic of the eusporangiate type of development.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

In angiosperms normally after fertilization.

  1. The zygote divides earlier than the primary endosperm nucleus

  2. The primary endosperm nucleus divides earlier than the zygote

  3. Both the zygote and primary endosperm nuclei divide simultaneously

  4. Both the zygote and primary endosperm nuclei undergo a resting period
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In angiosperms, the primary endosperm nucleus (PEN) typically divides prior to the division of the zygote. This ensures that the nutritive endosperm tissue is established early to support the subsequent development of the embryo from the zygote.

Multiple choice botany taxonomy and systematic botany importance and classification of angiosperms plant adaptation adaptation in plants uses of angiosperms classification of angiosperms

Which one of the following statements is correct?

  1. In the wood of dicots, ray tracheids are absent

  2. In the wood of gymnosperms, ray parenchyma is absent

  3. In most commercially important dicot woods, fibers are absent

  4. In the wood of all gymnosperms, vessels are absent
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gymnosperm wood is generally composed of tracheids and lacks vessels. Ray tracheids are often found in gymnosperms but are absent in most dicot woods.

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

A cultivated plant whose seed epidermis produces abundant cellulosic hairs used in textile industry and manufacture of fine quality paper is

  1. Cannabis sativa

  2. Linum usitatissimum

  3. Gossypium herbaceum

  4. Salmalia malabarica
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gossypium herbaceum, or cotton, is a plant whose seed epidermis produces cellulosic hairs used for textiles and paper.

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

The expansion of CIMAP is

  1. Central Indigenous Medicinal and Aromatic Plants

  2. Central Institute of Medicinal and Semi-arid crop Plants

  3. Central Institute of Medicinal and Aromatic Plants

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Central Institute of Medicinal and Aromatic Plants is a research institute of Council of Scientific and Industrial Research with its headquarter in Lucknow. It is engaged in the field of science and business of medicinal and aromatic plants. So the correct option is A. (Central Indigenous Medicinal and Aromatic Plants )