FUN 1 EO: 1.25 - Radiation Protection Tech.

FUN 1 EO: 1.25

1 / 10

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

H + OH = H2O2

H2 + OH = H2O2

OH + OH = H2O2

H + H = H2O2

2 / 10

What initiates the biological effects of radiation in cells?

Absorption of atoms

Reduction of atoms

Ionization of atoms

Multiplication of atoms

3 / 10

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

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

The cell membrane becomes impermeable

The cell begins to regenerate rapidly

The cell's energy reserves are depleted

4 / 10

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

Nucleus

Cell Membrane

Cytoplasm

Mitochondria

5 / 10

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

Formation of free radicals

Repair of mitochondria

Rupture of the cell membrane

Ionization of the nucleus

6 / 10

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

3,000 - 5,000 rad

100 - 500 rad

1,000 - 3,000 rad

500 - 1,000 rad

7 / 10

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

Increases permeability

Negligible effect

Immediate rupture

Severe damage

8 / 10

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

Leakage of beneficial materials

Ionization & Excitation of atoms making up the cell

Formation of free radicals

Disassociation of water

9 / 10

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

Leads to the immediate death of the cell

Causes the cell to multiply

Disrupts the function and interrupts the storage of energy via ATP

Repairs itself within a short time

10 / 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

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