Chapter 5 review

Interphase

Cells grow, duplicates organelles and copies DNA

Why do stomach cells divide more quickly than liver?

Undergo more wear and tear

Mitosis

Dividing of the nucleus, cytoplasm divides here

Kinases and cyclins

Control cell cycle

Growth Factors

Proteins from outside a cell that stimulates it to divide

Chromosomes

Made up of 2 chromatids,each carrying identical genetic information

Mitosis is used for this in a single-celled organism

Reproduction

Malignant tumors

Cancerous tumors that can cause tumors in other parts of the body

Cancer Cells

Divide uncontrollably

Binary Fission

Doesn't take place in multi cellular organisms

Cells in developing embryo differentiate based on

Location to the embryo

Asexual Mitosis

One parent needed, like a starfish or hydra

Synthesis

Where DNA is copied

G to G movement

Cell must pass critical checkpoint

Gap 1 and Gap 2

Make up interphase

Internal factor that controls cell cycle

Kinase

External Factor

Hormone present in blood acting as a stimulant to the growth of certain cells

Multi-cellualr organisms use mitosis for growth, development and this

Repair

Sexual Reproduction

Requires 2 parents and produced offspring that are genetically unique

Fragmentation

Parent organisms splits into pieces and each piece forms a new organism

Differentiation of cells are influenced by

Where the cells migrate

Totipotent

Capable of developing into a complete organisms or differentiating into any of its cels or tissues

Pluripotent

Growing into any cell type but totipotent

Multipotent

Growing into cells of a closely related cell family

Carcinogen

Substance known to produce or promote cancer