Unit 3 - Tissue Biology

Question 1

Atrophy

Answer 1

Decrease/Diminish in cells

Question 2

Hypertrophy

Answer 2

Abnormal growth. (Cancer cells, Adipose cells)

Question 3

Hyperplasia

Answer 3

Increase in number of cells.

Question 4

Metaplasia

Answer 4

Possible transformation of one cell type to another. REVERSIBLE.

Question 5

Dysplasia

Answer 5

Cells look less similar and multiply (Hyperplasia). All cells essentially take on their own role.

Question 6

Apoptosis

Answer 6

Programmed cell death. Still blebs, causes cellular fragmentation to take place. Phagocytosis happens then.

Question 7

Necrosis

Answer 7

Cell Death - detrimental. Membrane swells/blebs, breaks down, leakage of contents, inflammation comes to clean up.

Question 8

Hypoxia in cells

Answer 8

Loss of ATP,
Sodium moves out
Osmotic pressure increases
ER ruptures and forms vacuoles.

Question 9

ROS Reactive Oxygen Species

Answer 9

Radiation exposure/Toxins / Overproductions

Our body breaking down the byproducts would cause cell damage.

Question 10

Free Radicals

Answer 10

Atoms with unpaired electrons. Very unstable/Ready to pair. Causes damage.

Question 11

Intracellular Accumulation

Answer 11

Aggregation of cells - Lipids
Abnormal protein mutation
Lack of Enzyme - Different components accumulate
Ingestion of indigestible material - Can’t be digested.