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“Selectively permeable” refers to a membrane or barrier that allows only certain substances to pass through while blocking others. This selectivity is based on factors like size, charge, or solubility. It helps maintain cellular functions by regulating the flow of molecules into and out of cells.
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Proteinoid microspheres are tiny bubbles that resemble cells because they?
are formed from small organic molecules that can self-assemble into spherical structures. These microspheres have a lipid bilayer-like structure, similar to cell membranes, which allows them to encapsulate other molecules and exhibit some basic cell-like properties. They are thought to be important stepping stones in the study of the origin of life on Earth.
What term means the diffusion of water?
Osmosis is the term that describes the diffusion of water across a selectively permeable membrane. It involves the movement of water molecules from an area of higher concentration to an area of lower concentration.
What organelle regulates what moves in and out of the cell?
The plasma membrane selectively controls movement of materials into and out of the cell, and has receptors for hormones and enzymes. The generic term for these two processes is endocytosis (material moved into the cell) and exocytosis (movement of material out of the cell).
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Use the term selectively permeable in a sentence that demonstrates its meaning?
m
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Which term refers to the movement of water molecules through a selectively permable membrane?
diffusion
What is meant by the term osmosis?
Osmosis is the diffusion of water molecules through a selectively permeable membrane from regions of higher water concentration to regions of lower water concentration. This process is important for maintaining the balance of water and solutes in cells and organisms.
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Proteinoid microspheres are tiny bubbles that resemble cells because they?
are formed from small organic molecules that can self-assemble into spherical structures. These microspheres have a lipid bilayer-like structure, similar to cell membranes, which allows them to encapsulate other molecules and exhibit some basic cell-like properties. They are thought to be important stepping stones in the study of the origin of life on Earth.
