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- transitive verb 1 a : to go or travel across or over b : to move or pass along or through light rays traversing a crystal
www.merriam-webster.com/dictionary/traverse
Membrane transport is dependent upon the permeability of the membrane, transmembrane solute concentration, and the size and charge of the solute. 2 Solute particles can traverse the membrane via three mechanisms: passive, facilitated, and active transport. 1 Some of these transport mechanisms require the input of energy and use of a ...
- Enkephalines
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- Enkephalines
- Active Transport Definition
- Active Transport vs. Passive Transport
- Types of Active Transport
- Transporters of Active Transport
- Biological Importance
- References
Active transport is a kind of cellular transport where substances move against a concentration gradient. This means that the direction is from an area of lower concentration to an area of higher concentration. Hence, this process will require the expenditure of energy, and the assistance of membrane proteins, such as carrier proteins.
Passive transport is another form of cellular transport. It is one of the mechanisms employed by a cell to move substances across a biological membrane. It differs from active transport in the way that the substances move not against but along the direction of their respective concentration gradient. The movement of substances in passive transport ...
Active transport may be primary or secondary. A primary active transport is one that uses chemical energy in the form of ATP whereas a secondary active transport uses potential energy often from an electrochemical potential difference. In primary active transport, there is a direct coupling of energy such as ATP. Substances moved in primary active ...
In primary active transport, membrane protein transporters include the ion pumps, ion channels, and ATPases. ATPases, in particular, include the P-type ATPases, such as sodium-potassium pump, calcium pump, and proton pump, F-ATPases, such as mitochondrial ATP synthase, chloroplast ATP synthase, and V-ATPases, such as vacuolar ATPase. ATP-binding ca...
Active transport is essential in multifarious biological processes. It is employed in many biochemical pathways (e.g. proton gradient generation in chloroplasts and chemosynthesis in mitochondria). In plants, ABC transporter PhABCG1 is responsible for the active transport of volatile organic compounds across the plasma membrane. (6) This is vital t...
Yu, S. P. & Choi, D. W. (June 1997). “Na(+)-Ca2+ exchange currents in cortical neurons: concomitant forward and reverse operation and effect of glutamate”. The European Journal of Neuroscience. 9 (...Dyer, J., Hosie, K. B., & Shirazi-Beechey, S. P. (July 1997). “Nutrient regulation of human intestinal sugar transporter (SGLT2) expression”. Gut. 41 (1): 56–9. doi:10.1136/gut.41.1.56.Zhou, L., Cryan, E. V., D’Andrea, M. R., Belkowski, S., Conway, B. R., & Demarest, K. T. (1 October 2003). “Human cardiomyocytes express high level of Na+/glucose cotransporter 1 (SGLT2)”. Journal...Poppe, R., Karbach, U., Gambaryan, S., Wiesinger, H., Lutzenburg, M., Kraemer, M., Witte, O. W., & Koepsell, H. (July 1997). “Expression of the Na+-D-glucose cotransporter SGLT1 in neurons”. Journa...Mar 19, 2022 · Definition: Active transport moves molecules from low to high concentration, requiring energy (ATP). Passive transport moves molecules from high to low concentration and does not require energy. Types: Endocytosis, exocytosis, ion and protein pumps: diffusion, facilitated diffusion, osmosis, filtration: Transported Molecules
2 days ago · Entries are short and informative, covering details of biochemical substances and the processes in which they are involved, methods and concepts in molecular biology, and definitions of biochemical symbols and abbreviations.
Apr 25, 2020 · Passive Transport Definition. Passive transport, also known as passive diffusion, is a process by which an ion or molecule passes through a cell wall via a concentration gradient, or from an area of high concentration to an area of low concentration.
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Mar 26, 2019 · Selective permeability is mediated by special proteins that traverse the cellular membrane. They are involved in the movement of ions and small molecules as well as large polymers such as RNA and proteins.
May 2, 2017 · Since all life can be broken down into small molecules and chemical reactions, biochemistry is a broad science that is used in studying all types of biology, from botany to molecular genetics to pharmacology. Chemical reactions in cells are emphasized, but specific research topics can vary widely.
