Unit 3: Cells - Unit Test Pulse Check

Front

What is the function of the cell membrane?

Back

The cell membrane allows certain things to enter and exit the cell.

Front

Which organelle is primarily responsible for producing ATP energy?

Back

Mitochondria.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of movement of molecules across a semi-permeable membrane with the help of transport proteins.

Front

What is a semi-permeable membrane?

Back

A barrier that surrounds a cell or organelle which allows the passage of some, but not all, materials across it.

Front

What type of cell is characterized by having a nucleus?

Back

Eukaryotic cell.

Front

What is the primary role of mitochondria in a cell?

Back

To produce ATP energy through cellular respiration.

Front

What is the difference between diffusion and facilitated diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration without assistance, while facilitated diffusion requires transport proteins.

Front

What is the structure of a phospholipid bilayer?

Back

A phospholipid bilayer consists of two layers of phospholipids with hydrophilic heads facing outward and hydrophobic tails facing inward.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane against their concentration gradient, requiring energy.

Front

What is the role of chloroplasts in a cell?

Back

Chloroplasts are responsible for photosynthesis, converting light energy into chemical energy.