Ring Biology Midterm Exam Review 23

Front

Which letter represents the negative end?

Back

C

Front

The genotype of an organism describes the:

Back

genetic make-up of a trait

Front

What do diffusion, osmosis, and facilitated diffusion have in common?

Back

They move materials DOWN the concentration gradient.

Front

What is NOT TRUE about the cell membrane?

Back

Contains digestive enzymes.

Front

What do the cells look like at the end of mitosis?

Back

identical to the original cell.

Front

Define diffusion.

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

The diffusion of water across a semipermeable membrane.

Front

What is facilitated diffusion?

Back

The process of moving molecules across a membrane via transport proteins without energy.

Front

What is a phospholipid bilayer?

Back

A double layer of phospholipids that makes up the cell membrane.

Front

What is the function of the cell membrane?

Back

To control what enters and leaves the cell.