Vesicle Definition
Vesicles are formed by a lipid bilayer that separates its contents from the cytoplasm or fluid-based extracellular environment. In cell biology, a vesicle is a structure inside or outside the cell that contains fluid or…
Topics: Cell
Nuclear Membrane: Function and Structure
Nuclear membrane: The double layered transparent membrane, which makes the outer covering of the nucleus is the nuclear membrane The outer membrane porous but the inner one is not. Chemically the membrane is made of…
Nucleolus: Chemical Composition and Function
Nucleolus: The nucleolus is a round body located inside the nucleus of a eukaryotic cell. It is not surrounded by a membrane but sits in the nucleus. It is mainly involved in assembling the ribosomes,…
Main differences between Plant cell and Animal cell
Main differences between the Plant cell and Animal cell Plant cell Most plant cells are bounded by a non-living cell wall made of cellulose. Different types of plastids are present. Usually, one or more vacuoles…
Nucleoplasm Definition with Function
Nucleoplasm: The nucleoplasm is a type of protoplasm that is made up mostly of water, a mixture of various molecules, and dissolved ions. It is a transparent and dense fluid bounded by a nuclear membrane.…
Vacuole: Structure and Function
Vacuole: The open spaces found in the cytoplasm are the vacuole. It is a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and naturally containing fluid. They are found in…
Centrosome definition with Function
Centrosome: In the animal cell there is a spherical body outside the nucleus, which is called centrosome. It is an organelle near the nucleus of a cell that contains the centrioles (in animal cells) and…
Golgi Bodies or Golgi Apparatus: Structure and Function
Golgi Bodies or Golgi Apparatus: Golgi bodies might be flat, round or elongated. Usually, they are present close to the nucleus. It was first observed by a scientist named Golgi in 1898 AD in the…
Ribosome Definition with Structure and Function
Ribosomes are little spherical /granular organelle. The ribosome is a multipart molecule made of ribosomal RNA molecules and proteins that form a factory for protein synthesis in cells. They might happen liberally in the cytoplasm…
Lysosome: Functions and Structure
A lysosome is a type of membrane-bound organelle that is present in animal cells. It is formed by various enzyme bounded by a membrane. Normally they are spherical. Their membrane is bi-layered. They are organelles…
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