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What is the random movement of molecules and ions down their concentration gradient called?
Wiki User
∙ 8y ago
The random movement of molecules and ions down their concentration gradient (meaning from an area of high concentration to an area of low concentration) is called simple diffusion. Simple diffusion is related to the magnitude of driving force, permeability of the membrane, and surface area.
Wiki User
∙ 8y ago
Wiki User
∙ 11y agoFacilitated diffusion is the movement of a molecule down its concentration gradient with the assistance of a membrane protein. This is a type of passive transport (no energy is required).
Wiki User
∙ 12y agoFacilitated diffusion
Wiki User
∙ 12y agoThe answer is Active Transports
Wiki User
∙ 13y agodiffusion. for water, its osmosis
Wiki User
∙ 13y agoPassive transport
Wiki User
∙ 11y agoPassive Transport
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What term describes the difference in the concentrations of a substance across a cell's membrane?
The term that describes the difference in concentrations of a substance across a cell's membrane is called the concentration gradient. This gradient drives the movement of substances such as ions or molecules across the membrane through processes like diffusion or active transport to achieve equilibrium.
What diffusion is lower concentration to a higher concentration?
This process is called active transport, where cells use energy to move molecules against their concentration gradient, from an area of lower concentration to a higher concentration. This mechanism allows cells to maintain specific intracellular concentrations of certain molecules that are different from their surroundings.
What best determines the direction that carbon dioxide and oxygen molecules move?
The direction in which carbon dioxide and oxygen molecules move is primarily determined by the concentration gradient between the areas of higher and lower concentrations of these gases. Molecules tend to move from areas of high concentration to areas of low concentration through a process called diffusion. Additionally, factors such as temperature, pressure, and the presence of a semi-permeable membrane can also influence the direction of movement.
The movement of water molecules from an area of high concentration to low concentration through a selectively permeable membrane is called what?
This process is called osmosis. It is a type of passive transport where water molecules move across a membrane to balance the concentration of solutes on either side.
What is the Method of movement that requires the expenditure of ATP molecules is?
The movement that requires the expenditure of ATP molecules is called active transport. In active transport, cells use ATP to move molecules or ions against their concentration gradient, ensuring that specific substances are taken up or expelled from the cell as needed. This process is essential for maintaining cellular functions and homeostasis.
The difference in concentration of a substance across space is called a?
The difference in concentration of a substance across space is called a concentration gradient. This gradient drives the movement of molecules from regions of higher concentration to regions of lower concentration through processes like diffusion or active transport.
What is the term for the movement of molecules from an area of lower concentration to an area of higher concentration?
This process is called active transport, where molecules move against their concentration gradient with the help of energy from ATP.
In which type of process do substances move down their concentration gradient across the membrane?
Active transport is a process that removes substances from a cell against the concentration gradient. The molecules move from low concentration to high concentration during this process.
What is the process by which molecules move from high concentration region to low concentration region without the presence of membrane?
This process is called simple diffusion. It involves the random movement of molecules from an area of high concentration to an area of low concentration, driven by the concentration gradient. It does not require the presence of a membrane and occurs until equilibrium is reached.
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
What is the movement of molecules across a membrane against their concentration at the expense of ATP energy called?
Active transport. It requires energy in the form of ATP to move molecules against their concentration gradient.
How does salt affect the movement of molecules?
Salt can increase the movement of molecules in water through a process called osmosis. When salt is dissolved in water, it creates a concentration gradient that causes water molecules to move towards the area with higher salt concentration, increasing the overall movement of molecules in the solution.
What term describes the different in the concentrations of a substance across a cell's membrane?
concentration gradient
Molecules move in and out freely from high to low concentration?
This process is called simple diffusion, where molecules passively move down their concentration gradient, from an area of high concentration to an area of low concentration, in order to achieve equilibrium. This is a fundamental mechanism for the movement of small non-polar molecules across a cell membrane.
What is the movement of molecules from great concentration to lesser concentration?
The movement of molecules from great concentration to lesser concentration is called diffusion. However when dealing water molecules it is referred to as osmosis.
What is the movement of water across a concentration gradient called?
The movement of water across a concentration gradient is called osmosis. Water moves from an area of higher concentration to an area of lower concentration to equalize solute concentrations on both sides of a semi-permeable membrane.
Which process would be describe the movement of sugar molecules through membrane from a region of higher concentration to a region of lower concentration?
This process is called passive transport or facilitated diffusion, where sugar molecules move down their concentration gradient without requiring energy input from the cell. Proteins in the membrane facilitate the movement of sugar molecules across the membrane.
