ALGAE

Some algae are unicellular i.e. their bodies are composed of only one cell. They can only be seen under a microscope.

                  The largest algae are giant seaweeds some of which grow to over 50 meters long. They contain the green pigment chlorophyll and can produce, food by photosynthesis.

                              Green algae are formed in the sea, in fresh water, and in damp places on land. They occur as single cells, hollow bellow of cells, and fine threads.

Green Alga

                                              

Algae are of four types.

 

Rad Alga

01.   Green algae

02.   Brown algae 

03.   Red algae

04.   Diatoms

 

Diatoms are microscopic, single celled algae whose cell walls are made of silica.

 Some examples for green algae are,

 

                    01. Chlamydomonas  
                02. Ulva    
                03. Spirogyra

Ulva