AP Biology:Cells Unit Test

Front

What is the major cause of the size limits for certain types of cells?

Back

The need for sufficient surface area to support the cell's metabolic needs.

Front

Explain the concept of signal amplification in cell communication.

Back

Signal amplification in cell communication is the process by which a single extracellular signaling molecule can lead to a large cellular response.

Front

What are the three stages of cell signaling?

Back

Reception, transduction, and response.

Front

Where are proteins destined for the membrane made?

Back

On a ribosome attached to the rough endoplasmic reticulum.

Front

What is the function of a chloroplast?

Back

Absorbs sunlight for photosynthesis.

Front

What is the role of the plasma membrane?

Back

The plasma membrane regulates what enters and exits the cell, providing protection and support.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles.

Front

What is the purpose of the endoplasmic reticulum?

Back

The endoplasmic reticulum is involved in the synthesis of proteins and lipids.