AP Biology Unit 2

Front

Meaning 'to drink'

Back

Pinocytosis

Front

In facilitated diffusion, molecules will randomly move through the pores in _____________.

Back

Channel proteins

Front

What is the function of the vacuole?

Back

Sac that stores water, nutrients, and waste products

Front

Describes the arrangement of the cell membrane as bendable and made of many parts.

Back

The Fluid Mosaic Model

Front

A ____________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails.

Back

phospholipid

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is the role of proteins in the cell membrane?

Back

To facilitate transport and communication across the membrane.

Front

Define diffusion.

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy, while passive transport does not.