EVERYDAY SCIENCE

Detailed explanation-1: -The Xanthophyceae are distinguished by their food reserve (oil), the quantity of -carotene in their plastids, and motile cells with unequal flagella. Frequently their cell walls are two overlapping halves. The usual method of asexual reproduction is by motile zoospores or nonmotile resting aplanospores.

Detailed explanation-2: -Leucosin-which is a carbohydrate that occurs in the form of white lumps as a food reserve in many yellow-green algae of class Chrysophyceae. So, the correct answer is, ”floridean starch”. Note: Red algae are also known as Rhodophytes.

Detailed explanation-3: -These are yellow green algae which contain chlorophyll ‘a’ and chlorophyll ‘e’ or ‘c’. Besides chlorophylls they possess xanthophylls and beta carotene. The class xanthophyceae is divided into four orders: Heterochloridales, Heterococcidales, Heterotrichales and Heterosiphonales.

Detailed explanation-4: -Chlamydomonas or Chlorophyceae are a class of green algae. They are usually green due to the dominant presence of pigments chlorophyll a and chlorophyll b. They also reserve food within the sort of oil droplets.