Tag: kingdom plantae

Questions Related to kingdom plantae

Which of the following are heterosporous pteridophytes?
I. Lycopodium   II. Selaginella   III. Equisetum   IV. Salvinia

classification of pteridophytes kingdom plantae plant kingdom biology

  1. I and II

  2. II and III

  3. III and IV

  4. II and IV

  5. I and IV

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Correct Option: D

Integument like covering of megasporangium occurs in Selaginella

classification of pteridophytes kingdom plantae plant kingdom biology

  1. S. apus

  2. S. rupestris

  3. S. sulcata

  4. S. yemensis

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Correct Option: A
Explanation:
A) S. apus
The sporophyte is herbaceous. The shoot is dorsiventral and radial and creeping or erect. An ovule consists of a megasporangium, is surrounded by a single covering or integument, and eventually will become a seed.

Megaspores are retained inside megasporogonium for germination in species of Selaginella

classification of pteridophytes kingdom plantae plant kingdom biology

  1. S.bryopteris and S.lepidophylla

  2. S.chrysocaulos and S.subdiaphana

  3. S.selaginoides and S.kraussiana

  4. S.apus and S.rupestris

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Correct Option: A

Ptyxis is

classification of pteridophytes kingdom plantae plant kingdom biology

  1. Arrangement of leaves on the stem

  2. Arrangement of leaves in the bud

  3. Folding of lamina in bud

  4. Both B and C

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Correct Option: C
Explanation:

The folding of lamina in bud condition is called as ptyxis. Arrangement of leaves on the stem branches is called as phyllotaxy. Vernation is the phenomenon of arrangement of leaves in the bud. 

Thus, the correct answer is 'Folding of lamina in bud.'

Tracheophyta characterised by habitual heterophylly, absence of companion cells and presence of vessels in xylem is

classification of pteridophytes kingdom plantae plant kingdom biology

  1. Pteris

  2. Drimys

  3. Selaginella

  4. Gnetum

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Correct Option: C

Which one does not occur in Selaginella?

classification of pteridophytes kingdom plantae plant kingdom biology

  1. Heterospory

  2. Heterophylly

  3. Homospory

  4. Ligulate leaves

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Correct Option: C

Which is not a bryophyta?

classification of pteridophytes kingdom plantae plant kingdom biology

  1. Hepaticopsida

  2. Anthocerotopsida

  3. Bryopsida

  4. Lycopsida

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Correct Option: D

Which species of Selaginella exhibits homophylly?

classification of pteridophytes kingdom plantae plant kingdom biology

  1. S. kraussiana

  2. S. helvetica

  3. S. rupestris

  4. S. lepidophylla

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Correct Option: C

In what one of the following groups of plants would one find vessels in all the plants?

classification of pteridophytes kingdom plantae plant kingdom biology

  1. Selaginella, Marchantia, Cycas, Schizandra

  2. Selaginella, Gnetum, Mangfera, Marsilea

  3. Gnetum, Pinus, Ficus, Polytrichum

  4. Magnolia, Lycopodium, Funaria

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Correct Option: A

Which one of the following pairs of plants bears sporangia with two different types of spores?

classification of pteridophytes kingdom plantae plant kingdom biology

  1. Selaginella and Equisetum

  2. Equisetum and Pteridium

  3. Selaginella and Marselia

  4. Pteriodium and Marselia

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Correct Option: A