Mastering Biological Membranes

The plasma membrane defines the cell and separates the inside from the outside.

The nucleus, mitochondrion, and lysosome.

A lipid bilayer in which proteins are embedded.

<ol> <li>Compartmentalization</li> <li>Scaffold for biochemical activities</li> <li>Providing a selectively permeable barrier</li> </ol> Signup and view all the answers

<p>To create an ordered environment within cells and organelles to carry out functions encoded on DNA.</p> Signup and view all the answers

<p>The functions of biomembranes include compartmentalization, scaffold for biochemical activities, providing a selectively permeable barrier, transporting solutes, responding to external signals, intercellular interaction, and energy transduction.</p> Signup and view all the answers

<p>Creating an ordered environment allows biomembranes to carry out functions encoded on DNA.</p> Signup and view all the answers

<p>The estimated potassium/sodium ratio in our ancestral diet was 10:1.</p> Signup and view all the answers

<p>An example of an ordered environment created by biomembranes is chloroplasts in heart muscle cells.</p> Signup and view all the answers

<p>One intracellular organelle defined by membranes in eukaryotes is the nucleus.</p> Signup and view all the answers