Cheryl did an experiment in the lab. She added an enzyme called peroxidase to a test tube of hydrogen peroxide. The hydrogen peroxide began to bubble and soon turned into water and oxygen bubbles. In her experiment, which of the following is true?

Membrane phospholipids:

Match these terms to their descriptions. The same term may be used more than once or not at all.

Which components of the cell membrane are responsible for actively carrying materials across the membrane?

Small molecules such as fatty acids which can dissolve in lipids:

On this diagram of a portion of a plasma membrane, the red objects are the _______ , the blue objects sticking out of the top are the _______ , the round purple objects are the _______ heads of the phospholipids, and attached to each of those are two _______ tails of the phospholipids. This whole model is called the _______ model of the plasma membrane. (Be sure to use correct spelling!) 

On this diagram of a bacterial cell, the part labeled X is a:

A fat molecule is composed of ___ and 3 fatty acids.

Which of the following is FALSE about the denaturation of a protein?

A cell is treated with a chemical that prevents it from dividing. The cell becomes larger and larger. This situation: