Tag: biology

Questions Related to biology

Coenobium occurs in

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Spirogyra

  2. Ulothrix

  3. Volvox

  4. Chlorella

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Correct Option: C

After liberation of daughter colonies, the parent colony of Volvox

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Undergoes sexual reproduction

  2. Forms a new set of daughter colonies

  3. Undergoes fission

  4. Disintegrates

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Correct Option: D

A daughter colony is formed in Volvox by

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Fission

  2. Gonidium

  3. Budding

  4. All the above

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Correct Option: B

Calcium deposition and larvicidal properties are found in

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Diatoms

  2. Oscillatoria

  3. Chara

  4. Caulerpa

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Correct Option: C

Which one grows over molluscan shell

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Characium

  2. Spirogyra

  3. Cladophora

  4. Protoderma

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Correct Option: C

Sea Lettuce is

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Laminaria

  2. Chlorella

  3. Sargassum

  4. Ulva

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Correct Option: D

Alga forming a motile colony is

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Nostoc

  2. Spirogyra

  3. Volvox

  4. Chlamydomonas

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Correct Option: C

Which of the following is not correctly matched?

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Chlamydomonas - Unicellular flagellate

  2. Volvox - Colonial, non-flagellate

  3. Laminaria - Flattened leaf like thallus

  4. Chlorella - Unicellular, non-flagellate

  5. Spirogyra - Filamentous structure

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Correct Option: B

Non flowering plants belong to 

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Monocots

  2. Dicots

  3. Cryptogams

  4. Phanerogams

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Correct Option: C
Explanation:

Non flowering plants are those plants which cannot produce flowers. They reproduce mainly through spores. Examples of non flowering plants include ferns, mosses and liverworts. They belong to cryptogams. Cryptogams are non flowering and seedless, spore-bearing plants. 

Thus, the correct answer is option C.

A nonflowering plant of submerged stage is 

biology classification of plants thallophyta cryptograms kingdom plantae

  1. Vallisneria

  2. Ceratophyllum

  3. Chara

  4. Hydrilla

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Correct Option: C
Explanation:

Chara is a streptophytic algae that grows underwater. It does not produce flowers and remains in a submerged stage.

So the correct option is C.