Razzaq Archive

Pinnularia

Occurrence Pinnularia is a fresh water alga. It is found in pond. It is also present on the moist soil It is unicellular. Its cell is elongated and elliptical. Cell wall is chiefly composed of pectic substances. Silica is impregnated in …

Selaginella

Occurrence Selaginella is a tropical plant. It has world wide distribution. It grows in damp forests. Some species occur in temperate regions. They grow in moist shady places. General structure The plant body is sporophyte. The body is divided into …

Adiantum

Occurrence Adiantum is a common fern. It is found in the plains of the Punjab. It grows in shady places. It is found on moist walls or rocky places. The common specie of this genus is Adiantum Capillus-Veneris. General structure The …

Biology

  Introduction Biomolecules (Carbohydrates) Enzymes Bioenergetics Prokaryotes Support and Movement  Chromosome and DNA Mendelian Genetics