AP Biology Unit 4 Exam

Front

What is Long Distance Signaling?

Back

A type of signaling where hormones travel through the bloodstream to reach target cells located far away from their site of production.

Front

What is the role of Sweating in the body?

Back

Sweating is a response in a negative feedback loop that helps to cool the body down when temperature rises.

Front

What happens during Metaphase of Mitosis?

Back

During Metaphase, chromosomes align at the metaphase plate in preparation for separation.

Front

What is an example of Positive Feedback?

Back

Blood clotting is an example of positive feedback, where the process accelerates until a specific outcome is achieved.

Front

What is the primary role of Checkpoints in the Cell Cycle?

Back

Checkpoints regulate progression through the cell cycle, ensuring that cells only proceed to the next phase when conditions are favorable.

Front

Define Paracrine Signaling.

Back

A form of cell signaling where the target cell is close to the signal-releasing cell.

Front

What is Autocrine Signaling?

Back

A type of signaling where a cell targets itself, releasing signals that bind to its own receptors.

Front

What occurs during Anaphase of Mitosis?

Back

During Anaphase, sister chromatids separate and move towards opposite poles of the cell.

Front

What is the function of the Nuclear Envelope during Mitosis?

Back

The Nuclear Envelope breaks down during prophase to allow chromosomes to be separated.

Front

What is the significance of DNA replication in the Cell Cycle?

Back

DNA replication is crucial for ensuring that each daughter cell receives an identical set of chromosomes.