Unit 2 - AP Biology Exam Review

Front

What types of molecules can easily pass through a cell membrane?

Back

Small and hydrophobic molecules can pass through a cell membrane most easily.

Front

What does it mean that plasma membranes are selectively permeable?

Back

It means that the membrane regulates the passage of materials in and out of the cell.

Front

Which organelle is responsible for synthesizing the CFTR protein associated with cystic fibrosis?

Back

The Rough Endoplasmic Reticulum (Rough ER) synthesizes the CFTR protein.

Front

What is the function of the Golgi apparatus?

Back

The Golgi apparatus is responsible for packaging and shipping proteins.

Front

Why are cells generally small in size?

Back

Cells are small to maximize their surface area-to-volume ratio.

Front

What is the role of the cell membrane?

Back

The cell membrane protects the cell and regulates what enters and exits.

Front

Define 'selective permeability' in the context of cell membranes.

Back

Selective permeability is the ability of a membrane to allow certain substances to pass while blocking others.

Front

What is the primary function of the Rough Endoplasmic Reticulum?

Back

The primary function of the Rough ER is to synthesize proteins.

Front

What is the difference between the Rough ER and Smooth ER?

Back

The Rough ER has ribosomes on its surface and synthesizes proteins, while the Smooth ER is involved in lipid synthesis and detoxification.

Front

What is the significance of the surface area-to-volume ratio in cells?

Back

A higher surface area-to-volume ratio allows for more efficient transport of materials in and out of the cell.