NURSING EXAM QUESTIONS
PHARMACOGNOSY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Agar is the dried gelatinous substance obtained by extraction with water from
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Gelidium specicosa
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Gelidium amansii
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Gelidium vanum
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Gelidium amana
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Explanation:
Detailed explanation-1: -Agaragar, Japanese Isinglass, Vegetable gelatin. It is the dried gelatinous substance obtained by extraction with water from Gelidium amansii or various species of red algae like Gracilaria and Pterocladia, belonging to family Gelidaceae (Gelidium and Pterocladia), Gracilariaceae (Gracilaria).
Detailed explanation-2: -Agar (/ˈeɪɡɑːr/ or /ˈɑːɡər/), or agar-agar, is a jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae, primarily from ogonori (Gracilaria) and “tengusa” (Gelidiaceae).
Detailed explanation-3: -In culture media, agar-agar extracted from the cell walls of Rhodophyceae members is useful. Gelidium is a species of red algae (Rhodophyceae).
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