NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM PLANTAE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Fucoxanthin pigment is present in
A
Blue green algae
B
Red algae
C
Brown algae
D
Green algae
Explanation: 

Detailed explanation-1: -Fucoxanthin is an orange-colored pigment, along with chlorophylls a and c and -carotene, present in Chromophyta (Heterokontophyta or Ochrophyta), including brown seaweeds (Phaeophyceae) and diatoms (Bacillariophyta) [2, 3].

Detailed explanation-2: -Fucoxanthin is an algae-specific xanthophyll of aquatic carotenoid. It is prevalent in brown seaweed because it functions as a light-harvesting complex for algal photosynthesis and photoprotection. Its exceptional chemical structure exhibits numerous biological activities that benefit human health.

Detailed explanation-3: -Fucoxanthin is a carotenoid pigment which imparts a brown colour to algae.

Detailed explanation-4: -Fucoxanthin is present in brown algae like Sargassum.

Detailed explanation-5: -The brown colour of these algae results from the dominance of the xanthophyll pigment fucoxanthin, which masks the other pigments, Chlorophyll a and c (there is no Chlorophyll b), beta-carotene and other xanthophylls.

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