Cells and Membranes b. Give two examples of molecules that require energy to pass through cell membranes, why do they need energy to do so?

Human Anatomy & Physiology (11th Edition)
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Cells and Membranes

b. Give two examples of molecules that require energy to pass through cell membranes, why do they need energy to do so?

Expert Solution
Introduction:

The transport of metabolites across the plasma membrane takes place in the following two ways that is;

  • Passive transport and ,
  • Active transport.

Passive transport is the transport of molecules that occurs along the concentration gradient that is ; from a higher concentration region to a lower concentration region and this transport does not require any energy.

Active transport is the transport which require energy in the form of ATP. In this transport the molecules move  against the concentration gradient.

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