EVERYDAY SCIENCE

Detailed explanation-1: -As discussed in Chapter 10, the flow of ions across a membrane is driven by both the concentration and voltage components of an electrochemical gradient.

Detailed explanation-2: -Cell permeability and cell fluidity are two essential properties, having roles in transporting molecules across the membrane. These properties are affected by physiological factors like temperature, pH, and the membrane’s composition.

Detailed explanation-3: -There are 3 important factors that determine whether a molecule can move or cross through a cell membrane: 1) Molecular Size, 2) Concentration, and 3) Molecular Charge or Polarity.

Detailed explanation-4: -There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.

Detailed explanation-5: -Posted April 22, 2021. The permeability of a membrane is affected by temperature, the types of solutes present and the level of cell hydration. Increasing temperature makes the membrane more unstable and very fluid.