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16 votes
16 votes
Active

transport requires energy and moves substances
the concentration from
for
low to high concentration. Bulk transport carries susbstances which are too large
transport proteins. It is considered a type of active transport because it requires ATP
for very large
moves substances into the cell by vesicles and includes
substances.
moves substances out of the cell.

User Tatmanblue
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1 Answer

4 votes
4 votes

Answer:

Active transport mechanisms require the use of the cell’s energy, usually in the form of adenosine triphosphate (ATP).

Step-by-step explanation:

If a substance must move into the cell against its concentration gradient, that is, if the concentration of the substance inside the cell must be greater than its concentration in the extracellular fluid, the cell must use energy to move the substance. Some active transport mechanisms move small-molecular weight material, such as ions, through the membrane.

In addition to moving small ions and molecules through the membrane, cells also need to remove and take in larger molecules and particles.

User Arinze
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