Cell Differntiation
What is differentiated cells?
What are the main 3 steps of the cell cycle?
Interphase, Mitosis, Cytokinesis
What are the 4 main steps of mitosis?
Prophase, Metaphase, Anaphase, and Telophase
What is occuring in cytokinesis?
Division of cytoplasm into 2 individual cells.
Cancer is caused by _____.
Uncontrolled cell division
What do you call cells that are undifferentiated and can become differentiated into one or more types of specialized cells?
Stem cells
The Cell Cycle occurs in what kind of cells?
Eukaryotic
In prophase name 2/3 of the main things that occur?
1. Chromosomes condense and are sister chromatids
2. Nuclear membrane disappears
3. Spindle fibers form out of centrioles
If a cell divides more often is there a greater or lesser need for it?
Greater need
What are clumps of cells that divide uncontrollably?
Tumors
Cells found in adult bone marrow that are partially differentiated and can only become certain types are called..?
What are adult stem cells?
Interphase consists of what 3 steps?
G1, S, G2
In Metaphase name 1/2 of the things that occur.
1. Spindle fibers connect to centromeres
2. Chromosomes line up in the middle of the cell
Checkpoints are important because they have __ & ____ signals that can regulate the cycle.
Stop & Go
A tumor that is more likely to be fatal and its cancer cells are break away and spread to the body is called ____.
Malignant
Cells that never become differentiated are called..?
What are embryonic stem cells?
In G1 and G2 of interphase, what is happening?
Growth of Cells and Protein Synthesis
In Anaphase, state what occurs?
Sister chromatids separate and pull towards opposite sides of the cell
Webbed fingers and feet is a result of _____.
Apoptosis
Tumors that are typically harmless and can be removed are called ___.
benign
In the digestive system an example of an organ would be...?
What is the stomach, mouth, intestines, GI tract, mouth, esophagus, etc...?
What is produced at the end of interphase?
2 full sets of chromsomes
What occurs in Telophase?
Chromosomes condense, nuclear membrane reform around chromosomes, and spindle fibers break down.
We are born when a sperm fertilizes an egg. That fertilized egg is called ____.
Zygote
One cause of cancer is ____, these are cancer causing agents or chemicals that cause cancer by mutating DNA
carcinogens