THE CELL
TRANSPORT INTO AND OUT OF THE CELL
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Active does not need energy and passive uses ATP (energy)
|
|
|
Active uses ATP (energy) and passive does not need energy
|
|
|
Active stores transport proteins and passive releases
|
|
|
Active uses hormones and passive does not
|
Detailed explanation-1: -Active transport requires energy for the movement of molecules whereas passive transport does not require energy for the movement of molecules. In active transport, the molecules move against the concentration gradient whereas in passive transport, the molecules move along the concentration gradient.
Detailed explanation-2: -Active transport uses energy for the mobility of the molecules in and out of the cellular membranes and therefore remains active, whereas in passive transport the molecules do not use any energy for their movements and so they are known as passive.
Detailed explanation-3: -Because the transport process uses ATP as an energy source, it is considered an example of primary active transport.
Detailed explanation-4: -area with lower concentration. The difference between the concentrations is called the “concentration gradient”. Diffusion goes down the gradient until an equilibrium is reached.