Membrane proteins can enable several different types of transport across a membr
ID: 149057 • Letter: M
Question
Membrane proteins can enable several different types of transport across a membrane. Mark whether the following statements about pumps and the type of transport that they enable are TRUE or FALSE. If the statements are false, explain why.
TRUE or FALSE?
___________ The process of active transport move solutes across a membrane from higher concentration to lower concentration. (If false, why?)
___________ The type of transport channels enable is referred to as active transport. (If false, why?)
___________ When pumps, like the sodium-potassium pump, move solutes across a membrane, they do not require input of energy. (If false, why?)
Explanation / Answer
The first statement is false.
Because active transport involves the movement of solute from lower concentration to higher concentration and for this process, energy is required in the form of ATP.
The second statement is true.
As active transport requires transport proteins which are present in the cell membrane through which small molecules and ions are transported actively.
The third statement is false.
Because sodium -potassium pump works in assistance with energy requirement in the form of ATP.
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