Please help me this due at 8:00( 25pts) 1: molecules have unequal sharing of electrons among atoms

2: Proteins in the membrane act as enzymes? which allows molecules that may have difficulty crossing to the membrane to cross easily. This process is known as . (Example: glucose) This is still considered passive because it moves from high to concentration.

3: Movement of molecules from low to concentration will take . This type of energy needed is called (also known as ATP). These molecules power and move molecules the concentration gradient.

4: Exocytosis also gets important that the cell has made OUT of the cell. (Example: used for creating a cell wall for plants!)