Why is it important for cells to be able to use both active and passive transport to transport molecules across the cell membrane?



Answer :

Answer:

t is important for cells to be able to use both active and passive transport to transport molecules across the cell membrane because:

1. Passive transport allows molecules to move across the cell membrane without the use of energy. This process relies on the concentration gradient, where molecules move from areas of high concentration to areas of low concentration. It is essential for the movement of small, non-polar molecules such as oxygen and carbon dioxide.

2. Active transport, on the other hand, requires energy in the form of ATP to move molecules against their concentration gradient. This process is crucial for the movement of larger molecules, ions, and molecules against their concentration gradient. It allows cells to accumulate essential molecules or ions that are in low concentration outside the cell.

3. By having both active and passive transport mechanisms, cells can regulate the movement of different types of molecules efficiently. Passive transport is suitable for small molecules moving with the concentration gradient, while active transport is necessary for larger molecules and moving against the concentration gradient.

4. The combination of active and passive transport enables cells to maintain internal homeostasis by controlling the influx and efflux of various molecules and ions. This ensures that the cell's internal environment remains stable and functions properly.

Explanation:

Overall, the ability of cells to utilize both active and passive transport mechanisms is vital for their survival, proper functioning, and maintaining a dynamic equilibrium within the cell