What happens to the volume of solids liquids and gases when they cool? Solids- stays the same Liquids- stays the same Gases- decreases You can use the formula PV/T=P2V2/T2 P=initial pressure V=initial volume T=initial temp P2=final â¦pressure V2=final volume T2=final temp (MORE) 2 people found this useful.
Active transport requires the use of energy or ATP. In active transport you go against the concentration gradient, and for that ATP is used. Their are two types of active transport. Primary and secondary active transports and both use ATP, thou secondary uses less ATP than primary. Passive transport does not use any ATP.
Active transport is usually associated with accumulating high concentrations of molecules that the cell needs, such as ions, glucose and amino acids. If the process uses chemical energy, such as from adenosine triphosphate (ATP), it is termed primary active transport.f substrate molecules are moving from areas of lower concentration to areas of higher concentration (i.e., in the opposite direction as, or against the concentration gradient), specific transmembrane carrier proteins are required.