Class 11 · Plant Kingdom

Types of Sexual Reproduction — NEET Biology

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Sexual reproduction may be isogamous, anisogamous or oogamous. Union of gametes may take place in water or within the oogonium (oogamous species). The gametes are pyriform (pear-shaped) and bear two laterally attached flagella. The common forms are Ectocarpus, Dictyota, Laminaria, Sargassum and Fucus.

NCERT Biology · Class 11 · Chapter 3 · Paragraph 14
Why This May Be Tested in NEET 2027

Adjacent to a frequently-asked paragraph in the same chapter.

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QuestionPredicted for NEET 2027

Consider the following statements : 1. Chlamydomonas belongs to Chlorophyceae; it contains chlorophyll a and b, stores food as starch, and has a cell wall made of cellulose. 2. Laminaria is a brown alga (Phaeophyceae); it contains chlorophyll a, c and fucoxanthin, stores mannitol and laminarin, and has a cell wall of cellulose + algin. 3. Porphyra is a red alga (Rhodophyceae); it has pigments chlorophyll a, d and phycoerythrin, stores floridean starch, and lacks flagella. 4. Ulothrix belongs to Chlorophyceae; it possesses apical, equal flagella, starch in pyrenoids, and occurs in fresh water. 5. Sargassum is a brown alga (Phaeophyceae); it has fucoxanthin pigment, stores laminarin, and grows in marine habitats. Which of the above statements are correct?

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