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How is energy made available to starch molecules across the membrane in endocytosis?
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What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
What is the process When proteins help molecules move across the membrane is called?
when proteins help molecules move across the membrane, it it called Facilitated Diffusion
An example of a molecules transported by carrier protein?
Co-transport is when molecules or ions are transported across a membrane (in fixed ratios) at the same time. One example is the Na/Ca exchanger - which transports Na in and Ca out of the cell simultaneously.
What biomolecule helps transport molecules across the membrane?
proteins
Why are proteins and polysaccharides cannot be transported across a cell membrane by carrier proteins?
They are too large to be transformed by carrier proteins. They are moved across by Vesicles instead.
What do you think its right answer of the question Molecules that are too large to be moved across a cell membrane can be removed from the cell by endocytosis or exocytosis?
endocytosis
How do larger molecules move across epithelial membranes in the capillaries?
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.
Some materials can move across the cell membrane against a concentration gradient by?
Large molecules such as glucose that cannot cross the phospholipid bilayer can still move across the membrane through transport proteins by active transport. Active transport uses energy to move molecules the bilayer.
How do larger molecules move across epithelial membranes in capillaries?
by exocytosis and endocytosis
What are means of moving non-specific substances in bulk across the plasma membrane?
Endocytosis
What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
How does endocytosis differ from active transport?
Active transport utilizes transport proteins within the cellular membrane. Endocytosis occurs through an envagination of the cellular membrane itself to form a vessicle. Active transport is for transporting small molecules in and out of the cell while endo and exocytosis are for transporting large molecules in and out of the cell.
When molecules are moving back and forth across the membrane will they ever stop moving?
Yes, in an isotonic solution the movement of molecules across the membrane will stop.
What is the process When proteins help molecules move across the membrane is called?
when proteins help molecules move across the membrane, it it called Facilitated Diffusion
An example of a molecules transported by carrier protein?
Co-transport is when molecules or ions are transported across a membrane (in fixed ratios) at the same time. One example is the Na/Ca exchanger - which transports Na in and Ca out of the cell simultaneously.
What is the membrane that surrounds the cells?
this is the cell membrane made primarily of lipid molecules with proteins incorporated into it that aid in transport of molecules across the membrane
What biomolecule helps transport molecules across the membrane?
proteins
