EVERYDAY SCIENCE

Detailed explanation-1: -(c) Phaeophyceae In the members of class-Phaeophyceae, the plant body is usually attached to the substratum by a hold fast and has a stalk called stipe and a leaf like photosynthetic organ called frond.

Detailed explanation-2: -In the class phaeophyceae of algae, the plant body is usually attached to the substratum by a holdfast, and has a a stalk, which is termed the stipe, and a leaf-like photosynthetic organ called the frond.

Detailed explanation-3: -Phaeophyceae (brown algae) are eukaryotic marine algae. The body consists of branched filamentous structure in lower forms (e.g., Ectocarpus) and parenchymatous structure in higher forms (e.g., sargassum). The plant body is often differentiated into holdfast, stipe and lamina (frond).

Detailed explanation-4: -Among the members of the Phaeophyceae class, the plant body is usually linked to the ground by a holdfast, has stipe which is stalk-like and has fronds which act as photosynthetic structure.

Detailed explanation-5: -The part of kelp most similar in appearance and location to the roots of plants is called the holdfast. This spaghetti like structure has a primary function of securing the organism to the sea floor; holding it “fast” in all but the most turbulent conditions.