Describe the fluid-mosaic model of membrane structure.

Explain the difference between active transport across the cell membrane and passive transport.

Why is the structure of the plasma membrane considered to be a fluid-mosaic model?

How long is a typical transmembrane domain, and what is the chemical composition of the amino acids found within the transmembrane domain of a single-spanning integral membrane protein? A~ 20 amino acids; hydrophobic amino acidsB~ 100 amino acids, amphipathic amino acidsC~ 10 amino acids; polar, charged amino acids D~ 50 amino acids, polar, uncharged amino acids