AP Biology: Unit 4 Review (CED)

Front

What is the G0 phase in the cell cycle?

Back

The G0 phase is a stage where the cell is in a quiescent state and no longer divides.

Front

What is the role of the M checkpoint in the cell cycle?

Back

The M checkpoint ensures that all chromosomes are properly attached to the spindle apparatus to prevent nondisjunction.

Front

What happens when a ligand binds to its receptor?

Back

The binding of a ligand to its receptor causes a conformational change in the shape of the receptor.

Front

What are the end products of mitosis?

Back

Mitosis results in 2 identical diploid cells.

Front

What is positive feedback in biological systems?

Back

Positive feedback is a mechanism that amplifies responses and processes in biological organisms.

Front

What is the G1 phase in the cell cycle?

Back

The G1 phase is the first gap phase where the cell grows and prepares for DNA replication.

Front

What occurs during the S phase of the cell cycle?

Back

During the S phase, DNA is replicated, resulting in two copies of each chromosome.

Front

What is the G2 phase in the cell cycle?

Back

The G2 phase is the second gap phase where the cell prepares for mitosis.

Front

What is the difference between diploid and haploid cells?

Back

Diploid cells have two sets of chromosomes (2n), while haploid cells have one set of chromosomes (n).

Front

What is the function of the checkpoint in the cell cycle?

Back

Checkpoints in the cell cycle monitor and regulate the progression of the cell cycle to ensure proper division.