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How do most molecules cross the cell membrane?
Diffusion or if the molecules are too large they go through the transport proteins.
What transport where molecules are actively leaving the cells?
When molecules are actively leaving and entering cells, this process is called active transport. It is the only way of transportation that involves energy.
What process drives molecules across a membrane against a concentration gradient?
Active Transport.
Plants pipes that transport sugar molecules?
plants "pipes" that transports sugar molecules are called phloem
Why do cells need to use transport proteins function?
Some molecules are too large to pass through the cell membrane without transport proteins.
What are proteins found in cell membranes that transport large molecules?
carrier molecules
What is the process in which a cell surrounds and takes in a substance?
Endocytosis; bulk transport into the cell.
What body system does the digestive system rely on to transport digested food molecules?
The large intestines, or colons to be specific, transport digested food molecules into the blood stream
How do most molecules cross the cell membrane?
Diffusion or if the molecules are too large they go through the transport proteins.
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.
If the movement of molecules requires no energy?
it is called passive transport
Facilitated diffusion moves large molecules through?
Transport proteins and carrier proteins
What are large molecules up of smaller molecules called?
Macromolecules.
What is large molecules to small molecules called?
cell wall
What is the movement of molecules across a membrane against their concentration at the expense of ATP energy called?
This process is called active transport.
What transport where molecules are actively leaving the cells?
When molecules are actively leaving and entering cells, this process is called active transport. It is the only way of transportation that involves energy.
What process drives molecules across a membrane against a concentration gradient?
Active Transport.
