Honors Biology: The Eukaryotic Cell Cycle Biointeractive Activity Notes

G1 Checkpoint

________: If there is no DNA damage and enough sufficient resources, then growth signals stimulate the cell to proceed to DNA synthesis.

G1

________: The newly divided cell enters this phase right after cell division /mitosis.

Apoptosis

What is programmed cell death? Answer with a single words or term.

Differentiation

________ is the process in which cells stop dividing to specialize in their structure and function.

Cancer

________ is the result of an improperly regulated cell cycle.

G0

What is the resting, nondividing stage? Answer with a single words or term.

tumor suppressor genes

Normally, ________ inhibit the cell cycle.

Normal proto oncogenes

________ stimulate the cell cycle as well.

Cells

________ go through periods of growth and division.

Inhibitory proteins

________ are encoded by tumor suppressor genes.

proto oncogenes

Normally, ________ stimulate the cell cycle.

Interphase

________ occurs between mitotic phases, or two cell divisions.

Oncogenes

What are mutated versions of proto- oncogenes? Answer with a single words or term.

G2 Checkpoint

________: There must be undamaged DNA, a complete chromosome set, and enough cell components for the cell to enter the M phase and divide.

Cell cycle regulators

________ are proteins that control the progression of a cell through the cell cycle; they stimulate or inhibit the progression.

Cell division

________ occurs during the M (Mitosis) phase.

rest of the cell cycle

What is called interphase, during which a cell grows and replicates its DNA? Answer with a single words or term.

Cells

________ can form tumors because there is either too much cell division or too little cell death.

Cell cycle regulators

________ are molecular signals that may stimulate or stop cell division, tell cells to differentiate, or initiate cell death.

Cell division

________ remains important to an adult organism even after it is fully developed because cells need to be continuously renewed (skin and gut cells)

Cell division

________ is important for both single- celled and multicellular organisms because it is the only way single- celled organisms can reproduce, and multicellular organisms need ________ to grow and replace dead or damaged cells.