Cell

Cilia (sing.: cilium) and flagella (sing.: flagellum) are hair-like outgrowths of the cell membrane. Cilia are small structures which work like oars, causing the movement…

An elaborate network of filamentous proteinaceous structures present in the cytoplasm is collectively referred to as the cytoskeleton. The cytoskeleton is a composition that helps cells…

Ribosomes are the granular structures first observed under the electron microscope as dense particles by George Palade (1953). They are composed of ribonucleic add (RNA)…

Mitochondria (sing.: mitochondrion), unless specifically stained, are not easily visible under the microscope. The number of mitochondria per cell is variable depending on the physiological…

The chloroplast contains chlorophyll and carotenoid pigments which are responsible for trapping light energy essential for photosynthesis. In the chromoplasts fat-soluble carotenoid pigments like carotene,…

Carbohydrate: The organic compounds, consisting of carbon, hydrogen and oxygen in which the ratio of hydrogen and oxygen is 2:1 are said to be carbohydrates.…

Lipid: The saturated or unsaturated compounds consisting of carbon. hydrogen and oxygen which are insoluble in water but soluble in ether, benzine chloroform etc. are…

ATP:  The full meaning of ATP is adenosine tri-phosphate. One molecule of ATP is formed by the combination of one molecule of nitrogen base named…

The vacuole is the membrane bound space found in the cytoplasm. It contains water, sap, excretory product and other materials not useful for the cell.…

Lysosome is membrane-bound vesicular structures formed by the process of packaging in the Golgi apparatus. The isolated lysosomal vesicles have been found to be very rich…