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Pyrenoids are found in which of the following organs of Spirogyra:

A. Nucleus

B. Cytoplasm

C. Chloroplast

D. Cell wall

Correct Answer :

C. Chloroplast


Related Questions

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4

Sea-lettuce is the common name for

A. Lamitiaria

B. Sargassum

C. Batrachospermun

D. Ulva

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4

Which one of the following algae is a source of iodine ?

A. Polysiphonia

B. Laminaria

C. Nostoc

D. Diatoms

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4

The blue-green algae belong to

A. Eukaryota

B. Prokaryota

C. Myxomycetes

D. None of these

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4

Simplest type of reproduction in plants is found in

A. Ulothrix

B. Nostoc

C. Chlamydomonas

D. Spirogyra

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4

Which of the following produces non-motile gametes ?

A. Cladophora

B. Ulothrix

C. Spirogyra

D. Anabaena

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4

The slippery nature of Spirogyra is due to covering of:

A. jelly like structure

B. mucus

C. mucilage

D. none of these

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4

Which of the following is a larvicidal alga?

A. Chlorella

B. Oscillatoria

C. Chlamydomonas

D. Spirogyra

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4

Nannandrium of Oedogonium is a

A. dwarf male

B. normal male

C. normal female

D. dwarf female

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4

A thick-walled spore meant for perenna-tionis

A. aplanospore

B. akinete

C. hypnospore

D. zoospore

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4

Heterotrichous habit is shown by

A. Chlamydomonas

B. Oedogonium

C. Stigeoclonium

D. Ulothrix

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4

Fucoxanthin is found in

A. brown algae

B. green algae

C. red algae

D. blue-green algae

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4

Red colour of the red algae is due to

A. y-phycocyanin

B. Xanthophyll

C. Carotene

D. y-phycoerythrin

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4

Clump formation during sexual reproduction occurs in

A. Chlamydomonas

B. Oedogonium

C. Both (a) and (b)

D. None of these

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4

What is the storage product of most algae?

A. Cellulose

B. Glycogen

C. Starch and oil

D. Fat

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4

Plants which are not differentiated roots, stems and leaves are grouped under

A. Thallophytes

B. Gymnosperms

C. Pteriodophytes

D. Spermatophyte

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4

Heterocysts are found in

A. Nostoc

B. Cystopus

C. Ulothrix

D. Aspergillus

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4

The red alga devoid of red pigment is

A. Gracilaria

B. Batrachospermum

C. Polysiphonia

D. Laminaria

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4

Spirogyra differs from moss-protonema in having

A. pyrenoids

B. branched filaments

C. discoid chloroplasts

D. rhizoidal branches

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4

Pyrenoids are found in which of the following organs of Spirogyra:

A. Nucleus

B. Cytoplasm

C. Chloroplast

D. Cell wall

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4

Which of the following algae produces Palmella stage ?

A. Chlamydomonas

B. Cystopus

C. Oedogonium

D. Scytonema

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4

The algae which help in the fixation of nitrogen belongs to class

A. Rhodophyceae

B. Cyanophyceae

C. Chlorophyceae

D. Phaeophyceae

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4

Fusing gametes in Ulothrix are

A. morphologically and physiologically different

B. physiologically different

C. morphologically different

D. morphologically similar physiologically different

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4

Redness of red sea is due to

A. Red colour present in the sea water

B. Trichodesmium erythrium

C. Red algae or Batrachospermum

D. None of these

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4

Alga rich in protein is

A. Ulothrix

B. Chlorella

C. Oscillatoria

D. Spirogyra

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4

The red snow balls of alpine regions are due to the growth of

A. Oscillatoria

B. batrachospermum

C. Sargassum

D. Haemalococcus

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4

Haematochrome is a :

A. non-photosynthetic pigment found in algae

B. photosynthatic pigment found in algae

C. both (a) and (b)

D. none of these

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Asexual reproduction in Spirogyra

A. takes place by zoospore formation

B. has not been recorded

C. takes place by hypnospore formation

D. takes place by aplanospore formation

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4

Ulothrix is found in

A. hot sandy desert

B. slow running water

C. rocky places

D. sea

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4

Agar-Agar is derived from

A. fungi

B. algae

C. bryophytes

D. gymnosperms

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The photosynthetic pigments of Chlamydomonas are located in

A. gran a

B. thylakoid

C. stroma

D. pyrenoid