Keyword Analysis & Research: selectively permeable
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Selective Permeability - Definition and Function | Biology Dictionary
https://biologydictionary.net/selective-permeability/
WebMar 26, 2019 · Selective Permeability Definition. Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. This is important for the cell to maintain its internal order irrespective of the changes to the environment. For example, water, ions, glucose and carbon dioxide may need to be …
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Selectively Permeable Definition and Examples - ThoughtCo
https://www.thoughtco.com/selectively-permeable-4140327
WebUpdated on September 09, 2019. Selectively permeable means a membrane allows the passage of some molecules or ions and inhibits the passage of others. The capacity to filter molecular transport in this manner is called selective permeability. Selective Permeability Versus Semipermeability.
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Passive transport and selective permeability - Khan Academy
https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/membrane-transport/v/passive-transport-and-selective-permeability
WebPassive transport describes the movement of substances across a cell membrane down their concentration gradients, which does not require energy. Cell membranes are selectively permeable, so only certain substances …
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Selectively-permeable membrane - Definition and Examples
https://www.biologyonline.com/dictionary/selectively-permeable-membrane
WebJun 16, 2022 · Biology definition: A selectively-permeable membrane is a membrane that allows only some substances and molecules to pass into or leave the cell. An example of a selectively-permeable membrane is the cell membrane. It allows the passage of only certain types of molecules through diffusion and occasionally by facilitated diffusion.
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Membranes are Selectively Permeable – MHCC Biology 112: …
https://openoregon.pressbooks.pub/mhccbiology112/chapter/selectively-permeable/
WebMay 18, 2016 · In other words, plasma membranes are selectively permeable—they allow some substances through but not others (Figure 1). If the membrane were to lose this selectivity, the cell would no longer be able to maintain homeostasis, or to sustain itself, and it would be destroyed.
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Transport of Small Molecules - The Cell - NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK9847/
WebThe internal composition of the cell is maintained because the plasma membrane is selectively permeable to small molecules.
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15.3: Membrane Transport with Selective Permeability
https://bio.libretexts.org/Courses/University_of_California_Davis/BIS_2A%3A_Introductory_Biology_(Easlon)/Readings/15.3%3A_Membrane_Transport_with_Selective_Permeability
WebSelective permeability of the cell membrane refers to its ability to differentiate between different types of molecules, only allowing some molecules through while blocking others. Some of this selective property stems from the intrinsic diffusion rates for different molecules across a membrane.
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5.5: Passive Transport - Selective Permeability - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Book%3A_General_Biology_(Boundless)/05%3A_Structure_and_Function_of_Plasma_Membranes/5.05%3A_Passive_Transport_-_Selective_Permeability
WebOct 31, 2023 · Fat soluble substances are able to pass easily to the hydrophobic interior of the plasma membrane and diffuse into the cell. Polar molecules and charged molecules do not diffuse easily through the lipid core of the plasma membrane and must be transported across by proteins, sugars, or amino acids.
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Selective permeability of the cell membrane: Video | Osmosis
https://www.osmosis.org/learn/Selective_permeability_of_the_cell_membrane
WebAnd it helps regulate what comes in or out of the cell, which is called selective permeability. Movement across the cell membrane can occur by passive transport, which requires no energy, and active transport, which requires energy in …
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The cell membrane review (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/plasma-membranes/a/hs-the-cell-membrane-review
WebKey terms. Structure and function of the cell membrane. The cell membrane is semipermeable (or selectively permeable). It is made of a phospholipid bilayer, along with other various lipids, proteins, and carbohydrates. Image modified from OpenStax Biology. Each phospholipid is amphipathic, with two hydrophobic tails and a hydrophilic head.
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