permease
Quick Summary
In biology, a permease is a substance that facilitates the transport of another substance across a cell membrane. The cell membrane acts as a barrier, controlling what enters and exits the cell. While small, lipid-soluble molecules can pass through the membrane's lipid bilayer, larger, water-soluble molecules and ions require assistance. Permeases are a type of intrinsic protein that acts as a "facilitator," helping these essential substances diffuse across the membrane. This process is crucial for cellular metabolism and survival, allowing cells to absorb nutrients and remove waste products. The term "permease" was first used in 1957.123
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angiospermStructural basis of transport…group of enzymelike compounds called permeases. Plasmodesmata may penetrate neighboring cell walls at areas called primary pit fields. Also, some substances pass out of cells into the apoplast and are transported by energy-requiring processes into the protoplast of another cell.
Read More…group of enzymelike compounds called permeases. Plasmodesmata may penetrate neighboring cell walls at areas called primary pit fields. Also, some substances pass out of cells into the apoplast and are transported by energy-requiring processes into the protoplast of another cell.
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cellGeneral functions and characteristics…organelles contain transport proteins, or permeases, that allow chemical communication between organelles. Permeases in the lysosomal membrane, for example, allow amino acids generated inside the lysosome to cross into the cytoplasm, where they can be used for the synthesis of new proteins. Communication between organelles is also achieved by the…
Read More…organelles contain transport proteins, or permeases, that allow chemical communication between organelles. Permeases in the lysosomal membrane, for example, allow amino acids generated inside the lysosome to cross into the cytoplasm, where they can be used for the synthesis of new proteins. Communication between organelles is also achieved by the…
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