AP Biology Cell Cycle and Regulation

Cells go through additional growth.

• G1

• S

• G2

• M phase

Which one is not a checkpoint?

• G0 checkpoint

• G1 checkpoint

• G2 checkpoint

• Spindle checkpoint

Checks for cell size, nutrients, growth factors, and DNA damage.

• G1 checkpoint

• G2 checkpoint

• Spindle checkpoint

• DNA polymerase

Checks for DNA damage and DNA replication completeness.

• G1 checkpoint

• G2 checkpoint

• Spindle checkpoint

• DNA polymerase

To stay alive, a cell needs materials to move in and out across its membrane. As a cell grows bigger, its volume increases _____ than its surface area. At a certain point, the cell’s volume would be _____ compared to the area available for materials to move in and out.

• faster / too small

• faster / too large

• slower / too small

• slower / too large

What important event happens during the S-phase of the cell cycle?

• The mitotic spindle forms

• The nuclear membrane breaks down

• DNA replication

• Sister chromatids separate

Which of the following describes anaphase?

• Chromatin condenses into chromosomes, and the nuclear membrane is broken down

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

• Spindle fibers attach to centromeres and begin moving sister chromatids towards the cell's equator

• Chromosomes decondense and two nuclei form within the cell

Tags

NGSS.HS-LS1-4

Which phase of the cell cycle does the cell spend the greatest amount of time in?

• S phase

• Interphase

• M-phase

• Cytokinesis

Mutations in genes that regulate the cell cycle will most likely lead to what disease?

• Cancer

• Apoptosis

• Meiosis

• Diabetes

Tags

NGSS.HS-LS3-2

How are cyclins and CDKs involved with the cell cycle?

• Cyclins stop the cell cycle from proceeding

• Cyclins and CDKs make up a protein ring used to perform cytokinesis

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

• CDKs are secreted from cells to trigger division in neighboring cells

Tags

NGSS.HS-LS1-4