AP Biology Unit 4 Review

Front

What type of feedback loop do mammals use to maintain a constant body temperature?

Back

Negative feedback loop.

Front

What is the phase that occurs after metaphase in mitosis?

Back

Anaphase.

Front

What disease is most likely caused by mutations in genes that regulate the cell cycle?

Back

Cancer.

Front

What is the correct order of the steps in mitosis?

Back

Prophase, Metaphase, Anaphase, Telophase.

Front

What happens during anaphase?

Back

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

Front

Define homeostasis in biological systems.

Back

Homeostasis is the process by which biological systems maintain a stable internal environment despite external changes.

Front

What is the role of spindle fibers during mitosis?

Back

Spindle fibers help separate sister chromatids and pull them to opposite poles of the cell.

Front

What is the significance of the cell cycle?

Back

The cell cycle is crucial for growth, development, and repair in multicellular organisms.

Front

What is apoptosis?

Back

Apoptosis is the process of programmed cell death that occurs in multicellular organisms.

Front

What is the function of kinetochores?

Back

Kinetochores are protein structures on the chromosome that attach to spindle fibers during cell division.