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Bacteria are single-celled microscopic organisms which can live in different types of environment and survive in extreme conditions. They contain high protective coating in their body, which enhances to live any severe conditions. Many bacteria possess flagella which help them to move around, but some have hair-like structures which help them live in hard surfaces … Read more
Scottish Anatomist and Zoologist Robert Edmond Grant proposed the name Porifera (L. Porus, pore and ferre, to bear). The representatives of Phylum Porifera are also known as Sponges. They are simple types of aquatic invertebrates. This phylum contains about 10000 species; among them, most of the species are Marine and some are freshwater (about 100 species). … Read more
Algae are photosynthetic microorganisms that perform photosynthesis and produce oxygen (O2) and consume carbon dioxide (CO2) from the atmosphere. During photosynthesis, algae produce at least half of the oxygen in Earth’s atmosphere. Most of the algae inhabit the aquatic environment, either freshwater or marine habitats. They can also occupy on rocks, soils, vegetation, or moist … Read more
The cell is the functional, structural and biological unit of all living organisms. It is of two types such as prokaryotic and eukaryotic cells. The cell contains many types of organelles, among them, some are typically solitary such as the nucleus and golgi complex, while others can be numerous such as mitochondria, lysosomes, chloroplasts, etc. … Read more
Protein is a polymer which is formed by one or more long chains molecular units called amino acids. It performs a variety of functions in essentially all biological processes. Important functions are mechanical support, DNA replication, metabolic reactions, growth regulations, immune protection, transportation of molecules, storage of molecules, etc. It is an organic material of … Read more
All living organism needs energy to perform their different normal metabolic functions. Food is the source of energy of the living body. Photosynthesis is the process by which the chlorophyll-containing green plant and algae synthesizes glucose (carbohydrates) and evolves oxygen using CO2 of the air and water in the presence of sunlight. During the photosynthesis, … Read more