Cell Transport and Membranes

Front

What are the two parts of a phospholipid?

Back

Hydrophilic Head, Hydrophobic Tail

Front

What cellular structure controls what substances may enter or leave cells?

Back

Cell membrane

Front

What type of transport involves the movement of substances across a cell membrane without the use of energy?

Back

Facilitated diffusion

Front

What model describes the arrangement of the cell membrane as bendable and made of many parts?

Back

The Fluid Mosaic Model

Front

What is the primary function of the cell membrane?

Back

To maintain homeostasis by controlling the entry and exit of substances.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is active transport?

Back

The movement of substances against their concentration gradient, requiring energy.

Front

What is facilitated diffusion?

Back

The process of transporting substances across a membrane with the help of carrier proteins.

Front

What is the difference between hydrophilic and hydrophobic?

Back

Hydrophilic means 'water-loving' while hydrophobic means 'water-fearing'.

Front

What role do proteins play in the cell membrane?

Back

Proteins assist in transport, act as receptors, and provide structural support.