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An experiment to investigate how the temperature affects the diffusion rate of beetroot Aim The aim of this experiment is to investigate how the temperature will affect the absorbance or transmission of light by diffusion through the phospholipid bi-layer of beetroot. Hypothesis I predict that as the temperature increases, the light absorbance will increase because the heated up temperature will provide more kinetic energy for the pigments in order to collide more. However, the light absorbance will start to decrease when the temperature has reached a certain level as the carrier proteins and the protein channels would be denatured and slow down the facilitated diffusion. Scientific knowledge and understanding Facilitated diffusion is a process of diffusion, a form of passive transport, via which molecules diffuse across membranes, with the assistance of transport proteins. This diffusion will be affected by serveral varibles. They are temperature, pH, surface area of the beetroot, time...

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