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Simple Diffusion - Lipid soluble molecules diffuse across the plasma membrane of a cell, uses no ATP energy and only occurs down a concentration gradient.
Facilitated Diffusion - Molecules use the aid of proteins scattered throughout the plasma membrane to help them diffuse into or out of a cell, uses no ATP energy and only occurs down a concentration gradient.
Co-transport - A molecule such as glucose may have a lower concentration inside a cell than outside so it attaches to a carrier protein, as does a molecule that is higher in concentration inside than outside, a sodium ion for example. The glucose is pulled through the membrane because of its concentration gradient, as this happens the sodium ion is also pulled through. This uses no ATP energy but only occurs if a molecule can move down a concentration gradient (on an exam paper you would have to explain that the sodium moves against a concentration gradient to get full marks).
Active transport - A molecule uses the aid of carrier proteins to diffuse against a concentration gradient, this does use ATP energy. The ATP is needed to make the carrier protein change shape. This only occurs against a concentration gradient.
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What are the forms of passive transport?
Endocytosis and exocytosis
What type of energy does active transport require?
Yes, energy is needed for active transport, while energy is not needed to be inputted for passive forms of transport.
Which organelle forms a membranous system of channels for intracellular transport?
endoplasmic reticulum
What are the most common forms of pdas?
The most common forms of PDAs are Smartphones, palm PDAs and pocket PCs.
Types of bulk transport in cell?
Bulk transport is in 2 forms, exocytosis and endocytosis. Each of these 2 forms can then be sub divided into phagocytosis (movement of solids) and pinocytosis (movement of liquids) When bulk transport occurs, a phospholipid bilayer membrane merges with the cell membrane, and forces the contents of the vesicle in.out of the cell.
What transport was used in the goldfields 1851?
The most common forms of transport used were horse, horse and cart but most of the time is was just plain old walking.
Is endocytosis and exocytosis are two forms of passive transport?
No they are both forms of active transport.
3 other common word form for bring?
Three other common word forms of 'bring': brings, bringing,and brought.
What are the forms of transport?
Endocytosis and exocytosis
The locomotion and the rocket are two famous forms of which sort of transport?
seal transport
What transport was common when transport was made?
It depends on the type of transport that was made.
What are passive forms of transport?
Endocytosis and exocytosis
What are the forms of passive transport?
Endocytosis and exocytosis
What does active transport and passive transport have in common?
nothing
All forms of passive transport depend on what?
Ion channels. Active transport depends on ATP. Passive transport does not depend on energy.
Why is electricity such a use ful form of energy?
Electricity is easy to transport over great distances; and it is easy to convert into other forms of energy.Electricity is easy to transport over great distances; and it is easy to convert into other forms of energy.Electricity is easy to transport over great distances; and it is easy to convert into other forms of energy.Electricity is easy to transport over great distances; and it is easy to convert into other forms of energy.
Does anyone take the public transport in Houston?
Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.Yes they do. It would not be there if people did not take it. So lots of people use the various forms of public transport available in Houston.
