Which of the following algae contains mannitol as reserve food material?
(1) Volvox
(2) Ulothrix
(3) Ectocarpus
(4) Gracilaria
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following algae produce Carrageen?
(1) Red algae
(2) Blue-green algae
(3) Green algae
(4) Brown algae
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGemmae are present in:
(1) Some Gymnosperms
(2) Some Liverworts
(3) Mosses
(4) Pteridophytes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGenera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as
1. Homosporous
2. Heterosporous
3. Homosorus
4. Heterosorus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following pairs is of unicellular algae?
1. Gelidium and Gracilaria
2. Anabaena and Volvox
3. Chlorella and Spirulina
4. Laminaria and Sargassum
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhycoerythrin is the major pigment in :
1. Red algae
2. Blue-green algae
3. Green algae
4. Brown algae
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements is incorrect about gymnosperms?
1. They are heterosporous
2. Male and female gametophytes are free-living
3. Most of them have narrow leaves with thick cuticle
4. Their seeds are not covered
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMale and female gametophytes do not have an independent free-living existence in:-
1. Pteridophytes
2. Algae
3. Angiosperms
4. Bryophytes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPinus seed cannot germinate and establish without fungal association. This is because:
1. its seeds contain inhibitors that prevent germination.
2. its embryo is immature.
3. it has obligate association with mycorrhizae.
4. it has very hard seed coat.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFrom evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :
1. Gymnosperms
2. Liverworts
3. Mosses
4. Pteridophytes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology