Cell Biology Review

Front

What organelle is found in both prokaryotes and eukaryotes?

Back

Ribosomes

Front

Which organelle is responsible for digesting damaged proteins?

Back

Lysosomes

Front

What is the role of a secondary messenger like cAMP in signal transduction?

Back

To amplify the signal by relaying the message to multiple molecules.

Front

Which organelle contains its own DNA?

Back

Mitochondria

Front

What is the characteristic of a membrane protein with hydrophobic regions?

Back

It would likely be able to span the membrane as an integral protein.

Front

Define prokaryotic cells.

Back

Cells that lack a nucleus and membrane-bound organelles, such as bacteria.

Front

Define eukaryotic cells.

Back

Cells that have a nucleus and membrane-bound organelles, such as plant and animal cells.

Front

What is the function of mitochondria?

Back

To produce ATP through cellular respiration.

Front

What is the function of lysosomes?

Back

To break down waste materials and cellular debris.

Front

What is the fluid mosaic model?

Back

A model that describes the structure of cell membranes as a mosaic of various components, including phospholipids, cholesterol, and proteins.