Question

define Chlorophyceae ........​

Answer 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’.

Answer 2

Answer :

Chlorophyceae -

• They are a type of Algae.
• They are unicellular or filamentous.
• The common name of chlorophyceae is green algae.
• They are usually grass green.
• They have the presence of pigments chlorophyll a and b like in higher plants.
• The chloroplast may be discoid, plate like, reticulate, cup shaped, spiral or ribbon shaped in different species.
• They have the presence of paranoids which are the storage bodies located in chloroplast and they contain protein besides starch.
• Some of the chlorophyceae store food as oil droplets.
• They have rigid cell wall and are made up of cellulase layer and outer pectose layer.
• They may have 2 to 8 flagella of equal size.
• Example - Volvox, Ulothrix, Chara, etc.
• The vegetative type of reproduction in chlorophyceae takes place by fragmentation and formation of spores.
• The asexual type of reproduction takes place flagellated zoospores produced in zoosporangia.
• The sexual type of reproduction takes place in these ways : isogamous, anisogamous and oogamous.