What are the types of diffusion? [Select] [Select] and If a molecule is large (heavy), the diffusion rate will be [Select] molecule is small (light), the diffusion rate will be [Select] The higher the concentration gradient, the [Select] lower the concentration gradient, the [Select] Heat is what form of energy? [Select] [Select] When heat is increased, diffusion rate is [Select] diffusion rate is [Select] V If the the diffusion rate. The the diffusion rate. Adding more heat means increasing When heat is decreased,