AP Bio: Unit 4 (CED)

Front

What is Long Distance / Endocrine Signaling?

Back

A type of cell communication where hormones are released into the bloodstream to target distant cells.

Front

What is apoptosis?

Back

The process of programmed cell death that occurs in multicellular organisms.

Front

What are plasmodesmata?

Back

Narrow channels in plant cell walls that allow for cytoplasmic connections and communication between adjacent cells.

Front

What are the phases of the cell cycle in order?

Back

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

Front

What is quorum sensing?

Back

A process by which bacteria sense local population density through the release and detection of signaling molecules.

Front

What is the primary function of plasmodesmata?

Back

To allow the movement of molecules between adjacent plant cells, facilitating communication.

Front

What happens if a cell cannot perform apoptosis?

Back

It can lead to uncontrolled cell growth, such as cancer, and the proliferation of infected cells.

Front

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

Back

It is the growth phase where the cell increases in size and prepares for DNA replication.

Front

What occurs during the S phase of the cell cycle?

Back

DNA replication takes place, resulting in two copies of each chromosome.

Front

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

Back

The cell prepares for division, checking for DNA damage and ensuring all DNA is replicated.