Rhodophyta are commonly called red algae. It is one of the oldest and large group of eukaryotic algae. Most of them are marine forms. Few species are also found in freshwater. The red colour is due to phycobilins. The main pigment is phycoerythrin. This pigment absorbs blue and green light. These lights can go deep … Read more
Algal cultivation is the process of growing microalgae. These are very small photosynthetic organisms. They use light, water and carbon dioxide. Then they grow and multiply. During this process algal cells produce many useful substances. Protein, lipid and carbohydrate are produced. These are stored in the algal biomass. Microalgae can be grown in freshwater. They … Read more
Algae are economically very useful organisms. They are used in food, agriculture, medicine, industry and fuel production. They grow very fast. They can grow in sea water and waste water also. For this reason they are used as cheap biological material. Many algae are used as food. Spirulina and Chlorella are used as food supplement. … Read more
Algae are simple, mostly aquatic and photosynthetic organisms. They are different from land plants because true root, stem and leaves are absent. Vascular tissues are also absent. The plant body of algae is simple. It is not differentiated into different plant parts. This type of body is called thallus. Algae show great variation in size … Read more
Algae are simple, mostly aquatic and photosynthetic organisms. They contain chlorophyll and prepare their own food. During photosynthesis oxygen is released by them. The plant body of algae is simple. It is not divided into true root, stem and leaves. Flowers are also absent. Such simple body is called thallus. Algae show much variation in … Read more
Algae are simple, chlorophyll bearing and photosynthetic organisms. They may be microscopic unicellular forms or large multicellular seaweeds. Phytoplankton are small algal forms and kelp is large seaweed form. The plant body of algae is not differentiated into true root, stem and leaves. Vascular tissues are also absent. The body is simple and thalloid. This … Read more
In some places, phycology is also called algology. It is the study of algae, which are part of the plant kingdom.
Chlamydomonas is a unicellular green algae, which belongs to the class Chlorophyceae. It is microscopic and mostly found in fresh water, stagnant pools, moist soil, sea water and snow also. Some species are present in mountain snow and they give red colour to snow, which is called watermelon snow. It is a simple motile algae. … Read more
Phycology is the study of algae. It is also known as algology. It is a branch of biology and deals with different algal forms. In phycology, the structure, classification, physiology, ecology and distribution of algae are studied. It includes both small algae and large seaweeds. Cyanobacteria, microalgae, macroalgae and seaweeds are included in this study. … Read more
Phaeophyta are commonly known as brown algae. They are mostly marine forms. The members are multicellular and they occur mainly in cold and temperate coastal water. Very few members are freshwater forms. The colour of the plant body is brown or olive green. This is due to excess amount of fucoxanthin pigment. The chief pigments … Read more
