Choose one of the two short answer questions below. How does a negative feedback system help maintain homeostasis? Describe how a negative feedback system works.   OR   Why is shape important to proper enzyme function?  

The most common molecule of the cell membrane is/are

Cholesterol is often referred to as having “good” and “bad” forms, however this is not true. In reality, “good” and “bad” refer to different kinds of 

Which of the following conditions would REDUCE the rate of mitosis?

A gland that secretes substances by pinching off the top of the cell are

You would expect to find ____________ fibers in areas that undergo a lot of stretch and rebound.

Facilitated diffusion and active transport both require a carrier protein in the cell membrane. Active transport, however 

A carrier molecule that moves two substances in the same direction is 

One way to understand the human body is to look at how its cells work. The concept of understanding large, complex things by looking at their simpler components is called

Which of the following muscle types are involuntary? (Select all that apply.)