The cell Membrane

Front

What part of a phospholipid is HYDROPHOBIC?

Back

The lipid "tails" are hydrophobic.

Front

What type of transport across the membrane requires energy?

Back

Active transport requires energy.

Front

What type of cell transport is represented by the process of getting substances into the cell?

Back

Endocytosis is the process of getting substances into the cell.

Front

How are phospholipids arranged in plasma membranes?

Back

Phospholipids are arranged in a bi-layer structure.

Front

What does it mean when a membrane is described as Selectively (or Semi) Permeable?

Back

It means some molecules can cross the membrane while others cannot.

Front

What is the primary function of the cell membrane?

Back

The primary function of the cell membrane is to protect the cell and regulate what enters and exits.

Front

What are the two main components of the cell membrane?

Back

The two main components are phospholipids and proteins.

Front

What role do proteins play in the cell membrane?

Back

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

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy.

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane.