AP Bio Unit 4 Review

Front

What is the role of Protein Phosphatase in cellular pathways?

Back

Protein Phosphatase are enzymes that shut off pathways by dephosphorylating molecules.

Front

What occurs during anaphase in cell division?

Back

Sister chromatids are separated and kinetochores begin pulling chromosomes to opposite poles.

Front

What is the result of a cell undergoing mitosis without cytokinesis?

Back

The cell will have more than one nucleus.

Front

What is the function of glycogen phosphorylase in muscle cells?

Back

Glycogen phosphorylase catalyzes the conversion of glycogen to glucose-1-phosphate.

Front

What are the resulting cells from mitosis?

Back

The resulting cells are identical to the starting cell and identical to each other.

Front

Define an enzyme.

Back

An enzyme is a protein that acts as a catalyst to speed up chemical reactions in the body.

Front

What is the significance of the beta-2 adrenergic receptor in the epinephrine signaling pathway?

Back

It is a transmembrane protein that binds epinephrine, activating the signaling pathway.

Front

What is the difference between a catabolic and anabolic process?

Back

Catabolic processes break down molecules for energy, while anabolic processes build up molecules.

Front

What is the role of kinetochores during cell division?

Back

Kinetochores are protein structures on chromosomes that attach to spindle fibers to pull sister chromatids apart.

Front

What is the function of Protein Kinase?

Back

Protein Kinase are enzymes that add phosphate groups to molecules, often activating them.