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How do larger molecules move across epithelial membranes in the capillaries?
Wiki User
∙ 15y ago
Large molecules are transported across a cell membrane by the process of process of exocytosis. This is when secretory vesicles secretes large molecules by the fusion of vesicles with the plasma membrane.
Wiki User
∙ 9y ago
Wiki User
∙ 15y agoby exocytosis and endocytosis
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What best explain the passage of air across alveolar membranes?
diffusion, through moist thin, epithelial cells
Which body structures have wall one cell thick?
Fudi
What is facillitated diffusion?
Facilitated diffusion is, the movement of specific molecules across cell membranes through protein channels
Why don't starch molecules pass through partially permeable membranes?
Albumin and starch molecules are too big to diffuse across cell membranes. They will not be able to diffuse from the intestine into the blood and from blood into the cells.
How is active transport similar to facilitated diffusion?
They both serve to transport molecules across cell membranes and both make use of proteins embedded in cell membrane in order to move these molecules. -Estela Mireles
How do larger molecules move across epithelial membranes in capillaries?
by exocytosis and endocytosis
How do molecules diffuse across membranes?
the reach equilibrium
What best explain the passage of air across alveolar membranes?
diffusion, through moist thin, epithelial cells
What is required to transport glucose molecules across the cell membranes of the intestine?
To start the process ATP is required to transport glucose milecules across the cell membranes of the intestine.
How does cystic fibrosis effect the cell membrane?
Cystic fibrosis is caused by defective CFTR protein. CFTR is an ion channel that transports chloride ions across epithelial cell membranes.
Capillaries form the connection between the arteries and veins?
Capillaries connect the smallest branches of arteries and veins The walls of capillaries are just one cell thick. Capillaries therefore allow the exchange of molecules between the blood and the body's cells - molecules can diffuse across their walls. This exchange of molecules is not possible across the walls of other types of blood vessel.
What does osmosis have to do with cell membranes?
Osmosis is the water molecules diffusion across the cell membranes. More informations can be find at en.wikipedia.org/wiki/Diffusion
What large molecules use proteins to help move across cell membranes?
carbohydrates
What is diffusion assisted by special protein molecules which bind to substances that diffuse across membranes?
facilitated diffusion
What blood vessels do the exchange of gases occur?
the blood vessel which allows gas exchange to occur is the capillaries
Which body structures have wall one cell thick?
Fudi
What is facillitated diffusion?
Facilitated diffusion is, the movement of specific molecules across cell membranes through protein channels
