FUN 1 EO: 1.25 - Radiation Protection Tech.

FUN 1 EO: 1.25

1 / 10

What does the primary effect of radiation in a cell consist of?

Formation of free radicals

Disassociation of water

Ionization & Excitation of atoms making up the cell

Leakage of beneficial materials

2 / 10

What happens when mitochondria are exposed to "a few thousand" rad of radiation?

Causes the cell to multiply

Leads to the immediate death of the cell

Disrupts the function and interrupts the storage of energy via ATP

Repairs itself within a short time

3 / 10

What part of the cell is often likened to the brain?

Nucleus

Mitochondria

Cytoplasm

Cell Membrane

4 / 10

How does radiation primarily affect the nucleus of a cell?

Disrupts energy storage in the nucleus

Increases permeability and leakage

Causes immediate rupture of the nucleus

Inhibits the ability of the cell to divide by affecting the DNA and RNA

5 / 10

What occurs when lysosome ruptures between 500 and 1,000 rad (5 - 10 gray)?

The cell's energy reserves are depleted

The cell membrane becomes impermeable

Digestive enzymes are released and begin to digest the rest of the cell

The cell begins to regenerate rapidly

6 / 10

What is the result of ionizing radiation hitting the cytoplasm of a cell?

Increases permeability

Severe damage

Negligible effect

Immediate rupture

7 / 10

What amount of rad is required to rupture the cell membrane?

500 - 1,000 rad

100 - 500 rad

1,000 - 3,000 rad

3,000 - 5,000 rad

8 / 10

What is one of the secondary effects of radiation interaction in a cell?

Ionization of the nucleus

Formation of free radicals

Rupture of the cell membrane

Repair of mitochondria

9 / 10

What initiates the biological effects of radiation in cells?

Multiplication of atoms

Reduction of atoms

Ionization of atoms

Absorption of atoms

10 / 10

How does hydrogen peroxide (H2O2) form as a secondary effect of radiation?

H2 + OH = H2O2

H + H = H2O2

OH + OH = H2O2

H + OH = H2O2

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