AP Biology Unit 4 Review

Front

What occurs when the ligand binds to the receptor?

Back

Confirmation change in shape of receptor.

Front

What type of feedback does the release of ADH represent when we are dehydrated?

Back

Negative feedback.

Front

Describe the interaction between cyclin and CdK.

Back

Cyclin interacts with CdK to initiate the mitotic phase.

Front

How much DNA should a daughter cell at the end of cytokinesis have compared to the original parent cell?

Back

The exact same amount.

Front

Which of the following describes anaphase?

Back

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

Front

What is the role of cyclins in the cell cycle?

Back

Cyclins regulate the progression of the cell cycle by activating cyclin-dependent kinases (CdKs).

Front

Define apoptosis.

Back

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

Front

What is the function of the plasma membrane?

Back

The plasma membrane regulates the movement of substances in and out of the cell.

Front

Explain the significance of the mitotic spindle during cell division.

Back

The mitotic spindle is essential for the separation of sister chromatids during mitosis.

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse gametes.