Biology

The main difference between active and passive transport is: B.Active transport requires energy, while passive transport does not.

Here's a breakdown of each statement:

A.Active transport is faster than passive transport due to the use of carrier proteins.  

False. The speed of transport depends on various factors, but active transport does not inherently make the process faster than passive transport.

B.Active transport requires energy, while passive transport does not.  

True. Active transport uses energy (usually ATP) to move molecules against their concentration gradient (from low to high concentration). Passive transport, on the other hand, does not require energy and occurs along the concentration gradient (from high to low concentration).

C.Active transport occurs across a conc...