EVERYDAY SCIENCE

Detailed explanation-1: -The pigments in Vaucheria are like those of Xanthophyceae as chlorophyll b the characteristic pigment of Chlorophyceae is absent. Many small nuclei lie in the cytoplasm inner to the layer of chloroplasts.

Detailed explanation-2: -Higher plants and green algae contain chlorophyll a and chlorophyll b. By contrast, diatoms, dinoflagellates, and brown algae do not contain chlorophyll b but do contain, in addition to chloro-phyll a, a characteristic green pigment, chlorophyll c (I, 2).

Detailed explanation-3: -All plants, algae, and cyanobacteria which photosynthesize contain chlorophyll “a". A second kind of chlorophyll is chlorophyll “b", which occurs only in “green algae” and in the plants.

Detailed explanation-4: -There are four types of chlorophyll: chlorophyll a, found in all higher plants, algae and cyanobacteria; chlorophyll b, found in higher plants and green algae; chlorophyll c, found in diatoms, dinoflagellates and brown algae; and chlorophyll d, found only in red algae.

Detailed explanation-5: -Characteristics: The red colour of these algae results from the pigments phycoerythrin and phycocyanin; this masks the other pigments, Chlorophyll a (no Chlorophyll b), beta-carotene and a number of unique xanthophylls.