Tag: classification of angiosperms

Questions Related to 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)


Correct Option: B
Explanation:

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

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


Correct Option: B
Explanation:

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

Development of microsporangium in angiosperms and gymnosperms is of.

  1. Eusporangiate type

  2. Leptosporangiate type

  3. Monosporic type

  4. Tetrasporic type


Correct Option: A

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


Correct Option: A

Which of the following Angiosperm families possess vessels in the wood?
a. Magnoliaceae
b. Degeneriaceae
c. Winteraceae
d. Annonaceae
Select the correct answer.

  1. $1, 2$ and $3$

  2. $1, 3$ and $4$

  3. $1, 2$ and $4$

  4. $2$ and $4$


Correct Option: A

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


Correct Option: A

Gnetum resembles angiosperms in showing which one of the following types of female gametophyte development?

  1. Monophonic

  2. Bishopric

  3. Endymion

  4. Tetrasporic


Correct Option: A

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


Correct Option: C

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


Correct Option: A
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 )