AP Biology Unit 4 Review

Front

What is the longest phase of the cell cycle?

Back

Interphase, because this is when the cell is performing its functions to stay alive.

Front

How many chromosomes do daughter cells have after mitosis?

Back

46 chromosomes.

Front

What activates a protein by transferring a phosphate group to it?

Back

Protein kinase.

Front

What is an example of a positive feedback loop?

Back

As fruit begins to ripen, it releases chemical signals that tell the cells to continue ripening.

Front

During which stage of mitosis are sister chromatids pulled apart?

Back

Anaphase.

Front

What is the primary function of mitosis?

Back

To produce identical body cells for growth and repair.

Front

What occurs during interphase?

Back

The cell performs its normal functions and prepares for division.

Front

What is the role of cAMP in cellular signaling?

Back

cAMP acts as a secondary messenger that activates protein kinases.

Front

What is the difference between positive and negative feedback loops?

Back

Positive feedback amplifies a response, while negative feedback reduces it.

Front

What happens during prophase of mitosis?

Back

Chromosomes condense and become visible, and the nuclear envelope begins to break down.