Question

Diffusion is a form of Response area cell transport. The model/illustration shows a Response area gradient. The solution has reached Response area when the movement of particles from A to Response area is the same as from Response area to A. When the temperature is Response area, the molecules move faster - but still move Response area their own concentration gradient.

Answer 1

It sounds like you are discussing the concept of diffusion in the context of cellular transport and concentration gradients. Let me help clarify the concepts related to diffusion:

1. Diffusion: This is the process by which molecules spread from an area of higher concentration to an area of lower concentration. This movement continues until there is an equilibrium, meaning the concentration of the molecules is uniform throughout the space.

2. Response area (or Equilibrium): The point at which the concentration of molecules is the same throughout, meaning the net movement of molecules from one area to another is equal. At this stage, the overall movement of particles in both directions (from A to the response area and from the response area to A) is balanced.

3. Temperature: Increasing the temperature generally increases the kinetic energy of molecules, causing them to move faster. This can lead to a quicker rate of diffusion, as the increased energy allows molecules to overcome barriers and move through the medium more effectively. Despite this increased movement speed, molecules still diffuse down their concentration gradient (from high to low concentration).

4. Concentration gradient: This refers to the difference in concentration of a substance between two areas. Molecules will naturally move along this gradient until equilibrium is reached.

In summary, diffusion is driven by concentration gradients and is influenced by temperature. As temperature increases, molecular movement becomes more rapid, enhancing the rate at which equilibrium is reached.