Active transport is defined as:
3. Movement of molecules up a concentration gradient from low to high, using energy.
This process requires energy, typically in the form of ATP, as it involves moving substances against their concentration gradient.
Endocytosis and exocytosis are forms of active transport. What is active transport?
1. Movement of molecules down a concentration gradient from high to low, using no energy.
2. Movement of molecules up a concentration gradient from low to high, using no energy.
3. Movement of molecules up a concentration gradient from low to high, using energy.
4. Movement of molecules down a concentration gradient from high to low, using energy.
1 answer