AP Biology - Unit 4 Review

Front

What are the phases of the cell cycle in order and their functions?

Back

G1 - growth, S - DNA replication, G2 - prepare to divide, M - division.

Front

What is the role of Protein Kinase in cellular signaling?

Back

Protein Kinase relays signals inside the cell by phosphorylating various molecules.

Front

What are plasmodesmata?

Back

Plasmodesmata are junctions in the cell wall of plant cells that allow for the exchange of small soluble compounds with neighboring cells.

Front

How do cyclin and CdK interact?

Back

Cyclin interacts with CdK to initiate the mitotic phase.

Front

What occurs during the transduction phase of a signaling pathway?

Back

Transduction involves protein modification, second messenger production, amplification, or a phosphorylation cascade.

Front

What is the function of G1 phase in the cell cycle?

Back

G1 phase is primarily for cell growth.

Front

What happens during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs.

Front

What is the purpose of the G2 phase in the cell cycle?

Back

G2 phase prepares the cell for division.

Front

What is the significance of the M phase in the cell cycle?

Back

M phase is where cell division occurs.

Front

What is the difference between Protein Kinase and Protein Phosphatase?

Back

Protein Kinase adds phosphate groups to proteins, while Protein Phosphatase removes them.