Question

Basis of classification of algae

Answer 1

Answer:

Presence of pigments which imparts traditional color on algae is the main basis for the classification of algae.

Chlorophyceae

• Chlorophyll a and chlorophyll b

• Green

Phaeophyceae

• chlorophyll a, chlorophyll c, fuxoxanthin

• Brown

Rhodophyceae

chlorophyll a and chlorophyll d, phycoerythrin

Red

Now, algae are classified on different criteria such as:

Flagellation

Storage products

Cellular organization

Constitution of cell walls

Answer 2

The presence or absence of pigments is the main basis of classification of algae:-

1. Chlorophyceae - In this type of algae Chlorophyll a and b are present and impart green colour pigment. These are also called as ‘blue-green algae’.

2. Phaeophyceae - This type of algae Chlorophyll a and c along with fucoxanthin are present. Fucoxanthin imparts brown colour to the algae . And are also known as ‘brown algae’.

3.Rhodophyceae - These algae has chlorophyll a and d and phycoerythrin are present. It imparts red colour. And are also called ‘red algae’.