Unit 4 and 5 Test - Study Guide - Pre-AP

Front

What is the M phase in the cell cycle?

Back

The M phase, or mitotic phase, is the part of the cell cycle where chromosomes are aligned in the middle of the cell during metaphase, followed by separation into daughter cells.

Front

What is uncontrolled growth in cancer cells?

Back

Uncontrolled growth in cancer cells refers to the abnormal proliferation of cells that do not respond to the normal regulatory signals that control cell division.

Front

What is the start codon in mRNA?

Back

The start codon in mRNA is AUG, which signals the beginning of protein synthesis.

Front

What occurs during the G1 phase of the cell cycle?

Back

During the G1 phase, the cell grows and prepares for DNA synthesis, ensuring it has the necessary resources for replication.

Front

What is cancer in terms of cell regulation?

Back

Cancer is a disorder that occurs when body cells lose the ability to respond to internal regulatory signals that control cell growth.

Front

Define the cell cycle.

Back

The cell cycle is a series of phases that a cell goes through to grow and divide, including G1, S, G2, and M phases.

Front

What happens during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs, resulting in the duplication of chromosomes.

Front

What is the role of the G2 phase in the cell cycle?

Back

The G2 phase is where the cell continues to grow and prepares for mitosis, ensuring all DNA is replicated and undamaged.

Front

What is the significance of the mitotic spindle?

Back

The mitotic spindle is a structure that separates chromosomes during cell division, ensuring each daughter cell receives the correct number of chromosomes.

Front

What are the consequences of mutations in the cell cycle?

Back

Mutations in the cell cycle can lead to uncontrolled cell growth, resulting in cancer or other growth disorders.