0
The passive transport of water across a selectively permeable is called?
Wiki User
∙ 14y ago
Osmosis is the movement of water molecules across a selectively permeable membrane.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
The movement of substances through a cell membrane without the use of cell energy?
Passive transport using osmosis and diffusion. Osmosis only applies to the movement of water down a concentration gradient across a selectively permeable membrane. DOH!!!
What are the different types of passive transport?
1. facilitative diffusion-transport proteins provide a pathway for certain molecules to pass 2. osmosis-the passive transport of water across a selectively permeable membrane 3. diffusion- the net movement of the particles of a substance from where they are more concentrated to where they are less concentrated. (out of a sophomore Biology book)... hope this helps <3
What is the net diffusion of water across a selectively permeable membrane?
Osmosis
What are passive and active transport?
Passive transport and active transport are transport of materials across membranes. Passive requires no energy, while active does.
What is an example of passive transport across a cell membrane?
Osmosis is a type of passive transport. It is specialized diffusion. It can occur through the membrane itself. Or through an aquaporin channel protein. Other forms of passive transport include: simple diffusion and facilitated (uses channel protein) diffusion.
Is osmosis is an example of active or passive transport?
Osmosis is the diffusion of water trough a selectively permeable membrane. However, water passes quite easily across most membranes. So it's mostly known as passive transport
What can be considered as passive transport?
Any form of transport that does not require a form of energy, which means that it happens along a concentration gradient (from an area of high to low concentration) and across a selectively permeable membrane (Osmosis)
What are the different of Passive transport?
1. facilitative diffusion-transport proteins provide a pathway for certain molecules to pass 2. osmosis-the passive transport of water across a selectively permeable membrane 3. diffusion- the net movement of the particles of a substance from where they are more concentrated to where they are less concentrated. (out of a sophomore Biology book)... hope this helps <3
The movement of substances through a cell membrane without the use of cell energy?
Passive transport using osmosis and diffusion. Osmosis only applies to the movement of water down a concentration gradient across a selectively permeable membrane. DOH!!!
What is the diffusion of water across the selectively permeable?
osmosis
What are the different types of passive transport?
1. facilitative diffusion-transport proteins provide a pathway for certain molecules to pass 2. osmosis-the passive transport of water across a selectively permeable membrane 3. diffusion- the net movement of the particles of a substance from where they are more concentrated to where they are less concentrated. (out of a sophomore Biology book)... hope this helps <3
What is diffusion and osmosis?
Diffusion is the tendency of particles in a gas or liquid to become evenly distributed by moving from areas of greater concentration to areas of lesser concentration. Diffusion is driven by the kinetic energy of particles that is a consequence of temperature. It is an inherently random process and particles continue to spread out until they are evenly distributed within the enclosed area.Biologically, diffusion is the cause of random movement or net movement of particles from an area of high concentration towards an area of low concentration. Osmosis refers to the flow of particles across a membrane. When active transport is absent, diffusion provides the driving force for osmosis across a fully permeable or partially permeable membrane.Fully permeable: all particles can move through.Partially permeable: only certain particles an move through.Active transport: biochemical processes expend energy to move particles.Note: Reverse osmosis is basically filtering. Pressure is greater on one side of a partially permeable membrane pushing particles through it.
What materials does osmosis transport?
Osmosis is the diffusion of water across a selectively permeable membrane from where it(water) is in higher concentration to where it(water) is in lower concentration.
What are all the passive transport in a cell?
There are two types of passive transport in a cell:Diffusion - the substance moves down a concentration gradient across a partialy permeable membrane. This requires no energy.Osmosis - WATER moves down a water potential across a partially permeable membrane. This requites no energy.
Is it true if the process by which water moves across a selectively permeable membrane is called diffusion?
Diffusion is a physical process. When it is performed through a selectively permeable membrane, it is called osmosis. Thus osmosis is an appropriate word for movement of water molecules through a selectively permeable membrane and not diffusion.
How do fluid materials transport through membrane osmosis osmosis?
Osmosis is the movement of water across a selectively permeable membrane from where it is in high concentration to where it is in low concentration.
Diffusion of water molecules across a selectively permeable membrane?
it is osmosis
