Biology

Immunology Definition Immunology is the scientific study of the structure and function, blood banking, immunization, and organ transplantation of the immune system. Immunology deals with…

Nuclear Membrane Definition Nuclear Membrane is the double-layered membrane of the cell nucleus, separating the nucleoplasm from the cytoplasm and permeable to certain molecules, esp.…

Centrosome Definition Centrosome is a specialized region of the cytoplasm that is located next to the nucleus of a cell and contains the centrioles. The…

About Lysosome Definition Lysosome is a cell organelle, which is surrounded by a membrane; it has an acidic interior, and contains hydrolytic enzymes that break…

About Chromosome Definition Chromosome is a single chain of DNA that is coiled and super coiled to form dense thread-like pieces. The term chromosome is…

Golgi apparatus Definition The Golgi apparatus is like the post office or shipping and receiving department of a cell. It is a cellular organelle that…

Cell Nucleus Definition Cell Nucleus is the most noticeable organelle within a eukaryotic cell, and perhaps the most important and defining feature of the eukaryotic…

Endosome Definition Endosome is a smooth sac within the cell, formed by or fused with coated vesicles that shed their clathrin, in which ligands are…

Cytoskeleton Definition Cytoskeleton is an organelle that forms a lattice or internal framework of a cell. It is composed of protein filaments and microtubules. It…

About Cilium Definition Cilium (plural cilia) is any of the short thread-like projections on the surface of a cell, organism, etc, whose rhythmic beating cause’s…

Cell Wall Definition The cell wall is a protective layer outside the cell membrane that also provides support for the cell’s structure. It is the…

About Chloroplast Definition Chloroplast is an organelle unique to plant cells that contains chlorophyll, which is what makes plants green and is responsible for enabling…