THE CELL
TRANSPORT INTO AND OUT OF THE CELL
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The movement of particles against the concentration gradient (low to high)
|
|
|
The movement of particles against the concentration gradient (low to high) using energy in the form of ATP
|
|
|
The movement of water molecules down the water concentration gradient through a partially permeable membrane
|
|
|
The movement of particles from an area of high to low concentration (down concentration gradient)
|
Detailed explanation-1: -“Active Transport is defined as a process that involves the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy.”
Detailed explanation-2: -Active transport is the process of moving molecules across a cellular membrane through the use of cellular energy.
Detailed explanation-3: -During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Detailed explanation-4: -Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient, using energy released during respiration .
Detailed explanation-5: -Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration. Since such a movement happens against the concentration gradient, it cannot happen naturally, and needs energy in the form of ATP to be carried out.