WEEK 3

Question 1

Differentiation

Answer 1

Each cell types differentiates and carries out particular functions.
The structure reflects the function of the tissue.

Question 2

Mitosis

Answer 2

Part of the cell cycle

Requires genetic control—DNA and RNA

Question 3

Mutation

Answer 3

If DNA in parent cell is altered and passed on, offspring cells will carry the mutation

Question 4

Apoptosis

Answer 4

Programmed cell death
Controlled by genetic elements

CANCER CELLS DONT HAVE THIS

Question 5

SPREAD THOURGH LLYHMATIC SYSTEM OR THROUGH BLOOD VESSLES. VERY DISORGANIZED GROWTH. CANCER CELLS DON’T LOOK LIKE ORGINIAL CELL. SOME CANCER CELLS LOOK LIKE SOMETHING COMPLETELY DIFFERENT FROM THE ORGINAL CELL.

Answer 5

.

Question 6

Neoplasm or tumor

Answer 6

 Cellular growth that no longer responds to normal genetic controls
 Cell continues to reproduce, without need for them to reproduce
 Deprives other cells of nutrition
 Neoplasms may consist of atypical or immature cells.
 Characteristics of each tumor depend on:
• Type of cell from which the tumor arises
• Unique structure and growth pattern

CANCER CELLS BRING BLOOD INTO THE MASS. WHICH CAN METASTASIZE INTO THE BLOOD

Question 7

Defect in Cellular Proliferation

Answer 7

Most human tissues contain predetermined, undifferentiated stem cells.

Predetermined stem cells give rise to mature cells of the type of tissue where they reside.

Question 8

OCULT BLOOD,- HIDDEN BLOOD.

Answer 8

MALINA STOOL- BLACK TAR STOOL.

Question 9

TOP CANCER

Answer 9

MOST COMMON IN MEN
PROSTATE
LUNG
COLORECTAL

COMMON IN WOMEN
BREAST
LUNG
COLORECTAL

Question 10

CANCER THAT KILLS THE MOST PEOPLE

Answer 10

LUNG CANCER. BECAUSE YOU TEST ONLY UNTIL AFTER MANIFESTATIONS

Question 11

Defect in Cellular Proliferation

Answer 11

 All cells are controlled by an intracellular mechanism that determines proliferation.

 Cancer cells grown in culture are characterized by loss of contact inhibition.
—Grow on top of one another and on top of or between normal cells

 Cancer cells respond differently from normal cells to intracellular signals regulating equilibrium.
—Divide indiscriminately

 Stem cell theory

• –Loss of intracellular control of proliferation results from mutation of stem cells.
• –DNA is substituted or permanently rearranged.

 Once mutated

• –Cells can die from damage or by initiating programmed cellular suicide (apoptosis).
• –Can recognize damage and repair itself
• –Surviving mutated cells have potential to become malignant.