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44 relations: Active transport, Amino acid, Bacteria, Biological membrane, Capillary, Carbon dioxide, Carbon monoxide, Cell (biology), Cell membrane, Chromatin, Cytoplasm, Cytosol, Diffusion, DNA, DNA-binding protein, Eukaryote, Glucose, Hemoglobin, Homogeneity and heterogeneity, Hydrophobe, Lac repressor, Ligand, Lipid, Lipid bilayer, Membrane, Membrane transport protein, Molecular diffusion, Molecule, Myoglobin, Nucleoplasm, Oxygen, Passive transport, PEP group translocation, Permease, Phospholipid, Prokaryote, Red blood cell, Retinol, Retinol-binding protein, Steric effects, Symporter, Transmembrane channels, Transmembrane protein, Velocity.
Active transport
Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration—in the direction against the concentration gradient.
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Amino acid
Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.
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Bacteria
Bacteria (common noun bacteria, singular bacterium) is a type of biological cell.
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Biological membrane
A biological membrane or biomembrane is an enclosing or separating membrane that acts as a selectively permeable barrier within living things.
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Capillary
A capillary is a small blood vessel from 5 to 10 micrometres (µm) in diameter, and having a wall one endothelial cell thick.
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Carbon dioxide
Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.
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Carbon monoxide
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air.
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Cell (biology)
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.
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Cell membrane
The cell membrane (also known as the plasma membrane or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates the interior of all cells from the outside environment (the extracellular space).
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Chromatin
Chromatin is a complex of macromolecules found in cells, consisting of DNA, protein, and RNA.
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Cytoplasm
In cell biology, the cytoplasm is the material within a living cell, excluding the cell nucleus.
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Cytosol
The cytosol, also known as intracellular fluid (ICF) or cytoplasmic matrix, is the liquid found inside cells.
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Diffusion
Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms.
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DNA
Deoxyribonucleic acid (DNA) is a thread-like chain of nucleotides carrying the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.
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DNA-binding protein
DNA-binding proteins are proteins that have DNA-binding domains and thus have a specific or general affinity for single- or double-stranded DNA.
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Eukaryote
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike Prokaryotes (Bacteria and other Archaea).
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Glucose
Glucose is a simple sugar with the molecular formula C6H12O6.
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Hemoglobin
Hemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.
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Homogeneity and heterogeneity
Homogeneity and heterogeneity are concepts often used in the sciences and statistics relating to the uniformity in a substance or organism.
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Hydrophobe
In chemistry, hydrophobicity is the physical property of a molecule (known as a hydrophobe) that is seemingly repelled from a mass of water.
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Lac repressor
The lac repressor is a DNA-binding protein which inhibits the expression of genes coding for proteins involved in the metabolism of lactose in bacteria.
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Ligand
In coordination chemistry, a ligand is an ion or molecule (functional group) that binds to a central metal atom to form a coordination complex.
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Lipid
In biology and biochemistry, a lipid is a biomolecule that is soluble in nonpolar solvents.
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Lipid bilayer
The lipid bilayer (or phospholipid bilayer) is a thin polar membrane made of two layers of lipid molecules.
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Membrane
A membrane is a selective barrier; it allows some things to pass through but stops others.
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Membrane transport protein
A membrane transport protein (or simply transporter) is a membrane protein involved in the movement of ions, small molecules, or macromolecules, such as another protein, across a biological membrane.
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Molecular diffusion
Molecular diffusion, often simply called diffusion, is the thermal motion of all (liquid or gas) particles at temperatures above absolute zero.
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Molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
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Myoglobin
Myoglobin (symbol Mb or MB) is an iron- and oxygen-binding protein found in the muscle tissue of vertebrates in general and in almost all mammals.
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Nucleoplasm
Similar to the cytoplasm of a cell, the nucleus contains nucleoplasm, karyoplasm, or nucleus sap.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Passive transport
Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input.
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PEP group translocation
PEP group translocation, also known as the phosphotransferase system or PTS, is a distinct method used by bacteria for sugar uptake where the source of energy is from phosphoenolpyruvate (PEP).
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Permease
The permeases are membrane transport proteins, a class of multipass transmembrane proteins that allow the diffusion of a specific molecule in or out of the cell in the direction of a concentration gradient, a form of facilitated diffusion.
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Phospholipid
Phospholipids are a class of lipids that are a major component of all cell membranes.
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Prokaryote
A prokaryote is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
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Red blood cell
Red blood cells-- also known as RBCs, red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes (from Greek erythros for "red" and kytos for "hollow vessel", with -cyte translated as "cell" in modern usage), are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O2) to the body tissues—via blood flow through the circulatory system.
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Retinol
Retinol, also known as Vitamin A1, is a vitamin found in food and used as a dietary supplement.
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Retinol-binding protein
Retinol-binding proteins (RBP) are a family of proteins with diverse functions.
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Steric effects
Steric effects are nonbonding interactions that influence the shape (conformation) and reactivity of ions and molecules.
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Symporter
A symporter is an integral membrane protein that is involved in the transport of many differing types of molecules across the cell membrane.
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Transmembrane channels
Transmembrane channels, also called membrane channels, are pores within a lipid bilayer.
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Transmembrane protein
A transmembrane protein (TP) is a type of integral membrane protein that spans the entirety of the biological membrane to which it is permanently attached.
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Velocity
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.
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Redirects here:
Carrier-mediated diffusion, Facilitated transport, Uniporters.
References
[1] https://en.wikipedia.org/wiki/Facilitated_diffusion
