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The transport of molecules of a particular solute from inside an animal cell across the cell membrane to the extracellular fluid always requires energy when?
Wiki User
∙ 11y ago
the concentration of the solute is lower inside the cell than outside it
Wiki User
∙ 11y ago
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What are the protein molecules in a cell membrane that assist in cell transport?
Protein molecules are responsible for membrane transport. In passive transport diffusion is the phenomenon in which molecules flow naturally from areas of high concentration to lower concentrations.
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
Which of these extracellular signal molecules could diffuse through a plasma membrane and bind to an intracellular receptor?
estrogen
What ways molecules cross the membrane with energy?
active transport
How does endocytosis differ from the process shown in transparency?
Endocytosis is a process which allows a cell to engulf molecules in their entirety and surround those molecules in a membrane. Transport is when small molecules can actively transport through a cellular membrane and come out again.
What is the method of active transport across the cell membrane in which the cell takes in extracellular fluids?
penis
What is A method of active transport across the cell membrane in which the cell takes extracellular fluid?
penis
What biomolecule helps transport molecules across the membrane?
proteins
What are the protein molecules in a cell membrane that assist in cell transport?
Protein molecules are responsible for membrane transport. In passive transport diffusion is the phenomenon in which molecules flow naturally from areas of high concentration to lower concentrations.
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
Which of these extracellular signal molecules could diffuse through a plasma membrane and bind to an intracellular receptor?
estrogen
What type of molecules embebbed in the plasma membrane allows molecules to pass through the membrane by active or passive transport?
proteins
What ways molecules cross the membrane with energy?
active transport
What is the act of molecules crossing a membrane?
passive or active transport
How do carriers proteins facilitate passive transport of molecules across a membrane?
Carrier proteins facilitate passive transport of molecules across a membrane by changing its shape, by using ATP, to allow a substance to pass through the membrane.
What the role of protein channels in the cell membrane?
Protein channels are important to facilitate the transport of ions and other larger molecules across the plasma membrane. Large molecules cannot just diffuse thorough the membrane. In addition, polar molecules cannot diffuse through the membrane since it would be energetically unfavorable for them to negotiate the hydrophobic interior of the plasma membrane. Therefore, protein channels are essential in membrane transport.
What helps molecules diffuse across membrane through transport proteins?
A process known as passive transport helps molecules to diffuse across a membrane. Passive transport does not involve the use of chemical energy, unlike active transport does.
