Pyrenoids are found in which of the following organs of Spirogyra:
Nucleus
Cytoplasm
Chloroplast
Cell wall
Correct Answer :
C. Chloroplast
Related Questions
Red colour of the red algae is due to
y-phycocyanin
Xanthophyll
Carotene
y-phycoerythrin
Asexual reproduction in Spirogyra
takes place by zoospore formation
has not been recorded
takes place by hypnospore formation
takes place by aplanospore formation
Spirogyra differs from moss-protonema in having
pyrenoids
branched filaments
discoid chloroplasts
rhizoidal branches
Simplest type of reproduction in plants is found in
Ulothrix
Nostoc
Chlamydomonas
Spirogyra
Sexual fusion in Spirogyra is
isogamous
oogamous
morphologically anisogamous
physiologically anisogamous
A thick-walled spore meant for perenna-tionis
aplanospore
akinete
hypnospore
zoospore
Heterocysts are found in
Nostoc
Cystopus
Ulothrix
Aspergillus
Parasitic alga is
Cephaleuros
Ulothrix
Spirogyra
Chlamydomonas
The slippery nature of Spirogyra is due to covering of:
jelly like structure
mucus
mucilage
none of these
Clump formation during sexual reproduction occurs in
Chlamydomonas
Oedogonium
Both (a) and (b)
None of these
The red alga devoid of red pigment is
Gracilaria
Batrachospermum
Polysiphonia
Laminaria
Sea-lettuce is the common name for
Lamitiaria
Sargassum
Batrachospermun
Ulva
The blue-green algae belong to
Eukaryota
Prokaryota
Myxomycetes
None of these
Which one of the following algae is a source of iodine ?
Polysiphonia
Laminaria
Nostoc
Diatoms
Which of the following produces non-motile gametes ?
Cladophora
Ulothrix
Spirogyra
Anabaena
Heterotrichous habit is shown by
Chlamydomonas
Oedogonium
Stigeoclonium
Ulothrix
Fusing gametes in Ulothrix are
morphologically and physiologically different
physiologically different
morphologically different
morphologically similar physiologically different
Redness of red sea is due to
Red colour present in the sea water
Trichodesmium erythrium
Red algae or Batrachospermum
None of these
Fucoxanthin is found in
brown algae
green algae
red algae
blue-green algae
Alga rich in protein is
Ulothrix
Chlorella
Oscillatoria
Spirogyra
The algae which help in the fixation of nitrogen belongs to class
Rhodophyceae
Cyanophyceae
Chlorophyceae
Phaeophyceae
What is the storage product of most algae?
Cellulose
Glycogen
Starch and oil
Fat
Which is a rich source of protein ?
Nostoc
Anabaena
Spirulitia
Oscillatoria
The red snow balls of alpine regions are due to the growth of
Oscillatoria
batrachospermum
Sargassum
Haemalococcus
Filaments of Ulothrix are
branched
unbranched
brick-shaped
girdle-shaped
'Pond Silk' is the common name for
Spirogyra
Chlamydomonas
Anabaena
Nostoc
Agar-Agar is derived from
fungi
algae
bryophytes
gymnosperms
The food reserve in blue green algae is
cyanophycean starch
globulin
fats and oils
cellulose
Ulothrix is found in
hot sandy desert
slow running water
rocky places
sea
Nannandrium of Oedogonium is a
dwarf male
normal male
normal female
dwarf female