Cell Membrane & Endosymbosis

Front

What is the Endosymbiotic Theory?

Back

The theory that eukaryotic cells formed from symbiosis among several different prokaryotes.

Front

What does it mean that the cell membrane is selectively permeable?

Back

It means that certain things can enter while others cannot.

Front

What are the two parts of a phospholipid called?

Back

Hydrophilic Head and Hydrophobic Tail.

Front

Which type of cell came first, eukaryotic or prokaryotic?

Back

Prokaryotic cells came first.

Front

What do prokaryotic cells NOT have?

Back

Prokaryotic cells do NOT have membrane-bound organelles.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is a phospholipid bilayer?

Back

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

Front

What role do membrane proteins play in the cell membrane?

Back

They assist in transporting substances across the membrane and facilitate communication.

Front

What is the difference between passive and active transport?

Back

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

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.