What is an IB education? The IB programme continuum of international education This document is provisional pending review of the IB learner profile. Additional resources to support and communicate What is an IB Education? will be available in 2013â14.
Hello Ariana! Molecular weight and diffusion are inversely proportional; the greater the molecular weight, the slower the rate of diffusion. In fact, certain molecules can never pass through membranes, thus protecting the cell. I am not sure I understand your theory and second question.
Passive Transport Video. Diffusion. Diffusion is the overall movement of material from an area of higher concentration to an area of lower concentration. The difference in concentration between the two areas is called the concentration gradient; diffusion tends to continue until the concentration gradient is gone.