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When some substances can pass across them but other can not biological membranes are said to have?
selective permeability or semi-permeability
What else can I help you with?
Do some membranes have proteins with chanels that allow for the passage of hydrophilic substances?
Yes, some membranes have protein channels called aquaporins that allow for the passage of hydrophilic substances like water across the membrane. These channels facilitate the movement of water molecules while excluding other substances.
Which molecules help control movement of substances through cell membranes?
Proteins such as transporters, channels, and pumps are the main molecules that help control the movement of substances through cell membranes. These proteins facilitate the selective transport of ions, molecules, and other substances into and out of cells, maintaining proper cellular function. Additionally, phospholipids in the membrane also play a role in regulating the movement of substances across the cell membrane.
How do carrier proteins transport substances across membranes?
Carrier proteins bind to specific molecules on one side of the membrane, undergo a conformational change, and release the molecules on the other side. This process allows the substances to be transported across the membrane selectively.
What is transportation function?
Passive transport refers to the movement of biochemicals and other atomic or molecular substances across cell membranes. The function of the passive transport is that it is used in filtration and osmosis processes.
What is passive transpot?
Passive transport is the movement of substances across a cell membrane without the use of energy. It occurs along a concentration gradient, with substances moving from an area of high concentration to an area of low concentration. Examples include diffusion and facilitated diffusion.
Organic macromolecules called what are insoluble in water are often found in biological membranes and other waterproof coverings and have the ability to store energy for extended periods of time.?
Lipids are insoluble in water and found in biological membranes.
When some substances can pass across them but others cannot?
membrane
What is passive transports function?
Passive transport refers to the movement of biochemicals and other atomic or molecular substances across cell membranes. The function of the passive transport is that it is used in filtration and osmosis processes.
What passive transports function?
Passive transport refers to the movement of biochemicals and other atomic or molecular substances across cell membranes. The function of the passive transport is that it is used in filtration and osmosis processes.
What kills cell membranes?
Ethanol/Alcohol, and alot of other harmful substances/chemicals.
What is DSMO?
Dimethyl sulfoxide (DMSO) is a chemical compound with a variety of industrial and medicinal uses. It is known for its ability to penetrate biological membranes and enhance absorption of other substances. In medicine, DMSO is sometimes used as a solvent or carrier for drug delivery.
What passes through the protein channel?
Proteins and other molecules can pass through protein channels in biological membranes based on their size, charge, and shape. The channels allow specific substances to move in and out of cells, helping in maintaining cellular functions and communication.
