Cell Cycle
What are the three phases of the cell cycle?
1. Interphase
2. Mitosis
3. Cytokinesis
What are the three phases of interphase?
G1 (Growth 1)
S (Synthesis)
G2 (Growth 2)
What are the four phases of mitosis?
Prophase
Metaphase
Anaphase
Telophase
How many cells does mitosis result in?
two
What is a stem cell?
an unspecialized cell that can turn into any type of cell
Which stage of the cell cycle do cells spend most of their time in?
Interphase
In which phase of interphase does a cell grow the most?
G1 (Growth 1)
What events happen during prophase?
chromatin condenses into chromosomes
spindle fibers attach at centromeres
centrioles start moving towards opposite ends of the cell
What is the term for the division of the cytoplasm which leads to two cells?
cytokinesis
What is cell differentiation?
a stem cell turning a specific type of cell with a specific function
Which stage of the cell cycle follows interphase?
mitosis
In which phase of interphase is the DNA copied?
S phase (synthesis)
What happens during metaphase?
the chromosomes line up down the middle of the cell
What is one example of a very mitotic cell type/tissue/organ?
skin, RBC, liver, etc
Why does stem cell research bring on ethical issues?
stem cells mainly come from embryos
Which stage of the cell cycle follows mitosis?
cytokinesis
What is determined in the G2 phase?
whether the cell is ready for mitosis/cell division
What is pulled apart during anaphase?
the sister chromatids
What forms during cytokinesis in a plant cell?
cell plate
What is significant about a blastocyst (early embryo in development)?
this is when cell differentiation begins
Which phase of the cell cycle follows cytokinesis?
Interphase
What form will you find the DNA in during interphase?
chromatin
What is the role of the centrioles during mitosis?
directing the chromosomes around the cell
What forms during cytokinesis in an animal cell?
cleavage furrow
Where do you find adult stem cells?
bone marrow and the brain