Search Results for: membrane protein
Membrane protein
Definition noun, plural: membrane proteins A type of protein that is attached to, or associated with, a biological... Read More
Plasma membrane
Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More
Endomembrane system
Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More
Integral membrane protein
Definition noun A protein molecule (or assembly of proteins) that is permanently attached or firmly anchored in the plasma... Read More
Peripheral membrane protein
Definition noun, plural: peripheral membrane proteins A protein that temporarily adheres to the biological membrane, either... Read More
Carrier protein
Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out... Read More
Cell membrane
Definition noun plural: cell membranes ˈmembɹeɪn The cell’s outer membrane made up of a two layers of phospholipids... Read More
Sarcolemma
Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More
Facilitated diffusion
Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an... Read More
Endoplasmic reticulum
Definition noun plural: endoplasmic reticula (cell biology) A membrane-bound organelle that occurs as labyrinthine,... Read More
Amphipathic
Amphipathic is a word used to describe a chemical compound containing both polar (water-soluble) and nonpolar (not... Read More
Transmembrane protein
Definition noun, plural: transmembrane proteins A protein that spans the entire biological... Read More
Chemiosmosis
Chemiosmosis Definition What is chemiosmosis? In biology, chemiosmosis refers to the process of moving ions (e.g. protons)... Read More
Polypeptide
Polypeptide Definition Biology What are polypeptides? A polypeptide is defined as a polymer of amino acids joined together... Read More
Rough endoplasmic reticulum
Definition noun plural: rough endoplasmic reticula (cell biology) A type of endoplasmic reticulum wherein polyribosomes... Read More
Concentration gradient
Concentration gradient definition Concentration gradient refers to the gradual change in the concentration of solutes in a... Read More
Phosphorylation
Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... Read More
Transmembrane proteins
transmembrane protein (Science: cell biology) A protein subunit in which the polypeptide chain is exposed on both sides of... Read More
Movement of Molecules Across Cell Membranes – Quiz
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Pinocytosis
Pinocytosis Definition What is pinocytosis? Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More
Protein Physics: A Course of Lectures (Soft Condensed Matter, Complex Fluids and Biomaterials)
Protein Physics: A Course of Lectures ... Read More
Cell Structure – Quiz
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Smooth endoplasmic reticulum
Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is (a part of) endoplasmic reticulum that is... Read More
Simple diffusion
Simple Diffusion Definition What is simple diffusion? In biology, simple diffusion is a form of diffusion that does not... Read More
Active transport
Active transport is a type of cellular transport in which substances (e.g. ions, glucose, and amino acids) are transported... Read More
Simple squamous epithelium
Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More
Endocytosis
Endocytosis Definition What is endocytosis in biology? Endocytosis is a cellular process by which a cell internalizes any... Read More
Signal sequence
Definition noun A sequence of amino acid residues bound at the amino terminus of a nascent protein during protein... Read More
Animal cell
An animal cell is the fundamental functional unit of life of animals. It is also the basic unit of reproduction. Animal... Read More
Genetic Information and Protein Synthesis – Quiz
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Integral protein
Definition noun, plural: integral proteins A protein molecule or protein assembly permanently attached in biological... Read More
Cotranslational transport
Definition noun The process by which protein synthesis is closely coupled with the translocation of the growing protein to... Read More
Cytoskeleton
Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More