Cell Cycle Video (Amoeba Sisters)

Which of the following is NOT a principle of the Modern Cell Theory?

• All living things are made of cells.

• The cell is the smallest living unit in all organisms.

• All cells come from other pre-existing cells.

• Cells can spontaneously generate from non-living matter.

How do multicellular organisms primarily grow?

• Individual cells increase significantly in size.

• Cells divide to produce more cells.

• Organisms absorb more nutrients, causing existing cells to swell.

• Cells fuse together to form larger cells.

Which of the following is a characteristic of cancer cells?

• They divide too frequently and are uncontrolled.

• They always communicate effectively with healthy cells.

• They always securely anchor themselves to surrounding tissues.

• They are unable to secrete their own growth hormones.

What are the two main phases of the cell cycle?

• Prophase and Metaphase

• Anaphase and Telophase

• Interphase and M phase

• Growth phase and Division phase

Which phase is mainly involved in DNA Replication for the cell?

• G1 Phase

• S Phase

• G2 Phase

• M Phase

Which of the following phases are collectively known as Interphase in the cell cycle?

• G1, S, and G2

• M phase only

• G1 and M

• S and G2

What critical factors are assessed at the G1 checkpoint?

• Whether DNA was replicated correctly

• If the cell is growing well enough and its DNA is undamaged

• Proper alignment of chromosomes

• Adequate resources for mitosis

What is the outcome for a cell that fails to meet checkpoint requirements and cannot repair the issue?

• It enters a resting phase (G0)

• It proceeds to the next phase with errors

• It undergoes apoptosis

• It becomes a cancer cell

Which two proteins are described as positive regulators that work together to advance the cell cycle?

• p53 and Cyclin

• Cyclin and Cdk

• Cdk and p53

• Spindle fibers and Centrioles

Explain why it's hard for higher end cells, such as neurons and heart cells, to replicate.

(In 2-3 Sentences)