Membr A Integral Protein – Integral Membrane Proteins

Definition noun A protein molecule (or assembly of proteins) that is permanently attached or firmly anchored in the plasma membrane via its hydrophobic domains interacting with the membrane phospholipids. Supplement Integral membrane proteins may be classified into two major groups: (1) transmembrane proteins, and (2) integral monotropic proteins. The more common type is the transmembrane protein that spans the entire plasma membrane. IMPs include transporters, channels, receptors, enzymes, structural membrane-anchoring domains, proteins involved in accumulation and transduction of energy, and proteins responsible for cell adhesion. Examples of which are integrin, cadherin, insulin receptor, NCAM, selectin, glycophorin, rhodopsin, etc. Acronym: IMP. Synonym: intrinsic protein. Compare:peripheral membrane protein. See also: membrane protein, cell membrane, fluid mosaic model.

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Movement of Molecules Across Cell Membranes

Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of simple diffusion, facilitated diffusion, active transport, osmosis, endocytosis, exocytosis, epithelial transport, or glandular secretion. This tutorial provides elaborate details on each of these mechanisms. Find out how. ..

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Cell Structure

A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, and so on. The cellular contents are surrounded by a double layer, cell membrane. These cellular structures and cell junctions are elaborated in this tutorial…

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Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and external environment, neural pathways that conduct this information to the brain and parts of the brain that processes this information. Know the different sensory systems of the human body as elaborated by this tutorial…

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Plant Metabolism

Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photophosphorylation, chemiosmosis, carbon fixing reactions, respiration, are presented in this tutorial…

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