AP Biology Unit 4 Review

Front

What phase of mitosis is characterized by the separation of sister chromatids?

Back

Anaphase

Front

What evidence supports the idea that cell communication has evolved over billions of years?

Back

The processes are very similar in prokaryotic and eukaryotic cells.

Front

How do cyclins and CDKs function in the cell cycle?

Back

Cyclins activate CDKs, which perform the work of cell division.

Front

In which phase does a cell spend the majority of its life?

Back

Interphase

Front

What is a key difference between cancerous cells and healthy cells?

Back

Cancerous cells have a much shorter cell cycle.

Front

Define Interphase in the context of the cell cycle.

Back

Interphase is the phase of the cell cycle where the cell spends most of its life, preparing for division.

Front

What role do cyclins play in the cell cycle?

Back

Cyclins are proteins that regulate the timing of the cell cycle by activating CDKs.

Front

What is the function of CDKs in cell division?

Back

CDKs (Cyclin-dependent kinases) are enzymes that, when activated by cyclins, drive the cell cycle forward.

Front

What is density-dependent inhibition?

Back

Density-dependent inhibition is a regulatory mechanism that stops cells from dividing when they become too crowded.

Front

How do prokaryotic and eukaryotic cells communicate?

Back

Both types of cells use similar signaling processes, indicating a shared evolutionary history.