BIO 111- Why Cells Become Cancerous

What is cancer?

The body is unable to control the division of cells
Cancer cells divide uncontrollably and interfere with normal physiology

Melanoma

skin pigment cells

Leukemia

White blood cells in bone marrow

Carcinoma

lining of internal organs or skin

Sarcoma

connective tissue, such as bone

lymphoma

cells and tissues of immune system

Name of cancer

which organ or type of cell where cancer originates

1st Characteristic of Life

Processing energy, obtain from enviroment

2nd Characteristic of Life

Reproduces, grow, develop

3rd Characteristic of Life

Responds to stimuli

4th Characteristic of Life

Life is capable of regulation

5th characteristic of life

adapts

Homeostasis

maintains internal enviroment

Nucleus

the control center of the cell that contains genetic material and regulates cellular activities.

ribosomes

makes proteins, all cells have them

cytoskleton

provides shape and support

lysosomes

waster disposal organelles containing digestive enzymes that break down waste materials and cellular debris.

endomembrane system

a network of membranes involved in the synthesis, processing, and transport of proteins and lipids within a cell.

Major cause of most common cancer in humans

heredity, enviromental factors: lung cancer

Cell specialization

the process by which generic cells develop into specific cell types with distinct functions.

T/F: all cells in an individual have the same DNA

true

gene expression