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Gastric Glands

Science > Biology > Digestion and absorption in Human > Gastric Glands The gastric glands are numerous, simple or branched tubular glands present in the mucosa of the stomach. They are located in different regions of the stomach. Gastric glands secrete digestive juice and mucus. There are three types of gastric glands, distinguished from one another […]

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Human Biology

Salivary Glands

Science > Biology > Digestion and absorption in Human > Salivary Glands There are two sources of digestive enzymes: The glandular cells of the lining of the stomach and intestine, which directly pour their secretion into the lumen of the gut or the alimentary canal. Special glands such as the salivary glands, the liver and the […]

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General Biology

Branches of Biology (Brief Idea)

Science > Biology > General Biology > Branches of Biology > Branches of Biology (Brief Idea) In the previous article, we have studied the importance of biology. In this article, we shall study different branches of biology. On the Basis of Kind of Organism: Depending upon the kind of organism, the branches of biology are […]

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General Biology

Importance of the Study of Biology

Science > Biology > Introduction to Biology > Importance of the Study of Biology Biology is a branch of science which studies living beings that all plants and animals including humans. It is a word derived from Greek words (Greek: bios = life; logos = study). No one can say when the study of biology exactly […]

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General Biology

Three Domains of Life

Science > Biology > General Biology > Diversity of Living Organisms > Three Domains of Life Prior to 1969 organisms were classified into two kingdoms: the Plant Kingdom and the Animal Kingdom and on the basis of a cell, organisms were classified into two categories Prokaryotae or Monera (which comprised bacteria) and Eukaryotae (which comprised animals, plants, fungi, […]

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General Biology

Need for Classification of Living Beings

Science > Biology > General Biology > Diversity of Living Organisms > Need for Classification of Living Beings Scientists have identified and named 1.7 to 1.8 million species of living organisms. Of these, about 1.2 million are animal species while 0.5 million are plant species. The group of insects is the largest group with 1.025 […]

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General Biology

Basis of Biodiversity

Science > Biology > General Biology > Diversity of Living Organisms > Basis of Biodiversity Scientists have identified and named 1.7 to 1.8 million species of living organisms. Of these, about 1.2 million are animal species while 0.5 million are plant species. The group of insects is the largest group with 1.025 million species. According […]

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General Biology

Biodiversity

Science > Biology > General Biology > Diversity of Living Organisms > Biodiversity Scientists have identified and named 1.7 to 1.8 million species of living organisms. Of these, about 1.2 million are animal species while 0.5 million are plant species. The group of insects is the largest group with 1.025 million species. According to biologists […]

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General Biology

Characteristics of life

Science > Biology > General Biology > Introduction to Biology > Characteristics of life Biology is a branch of science which studies living beings that all plants and animals including humans. Biology examines the structure, function, growth, origin, evolution, and distribution of living things. It classifies and describes organisms, their functions, how species come into existence, and […]

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Human Biology

Alimentary Canal: Brief Idea

Science > Biology > Digestion and absorption in Human > Alimentary Canal: Brief Idea The digestive system in humans consists of an alimentary canal and associated digestive glands. The human alimentary canal (aliment: nourish) is a continuous muscular digestive tube about 8 to 10 m long that runs through the body. It is open at two ends […]