FUN 1 EO: 1.25 - Radiation Protection Tech.

FUN 1 EO: 1.25

1 / 10

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

Severe damage

Increases permeability

Immediate rupture

Negligible effect

2 / 10

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

H2 + OH = H2O2

OH + OH = H2O2

H + H = H2O2

H + OH = H2O2

3 / 10

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

Rupture of the cell membrane

Ionization of the nucleus

Formation of free radicals

Repair of mitochondria

4 / 10

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

Nucleus

Cell Membrane

Mitochondria

Cytoplasm

5 / 10

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

500 - 1,000 rad

100 - 500 rad

3,000 - 5,000 rad

1,000 - 3,000 rad

6 / 10

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

Disassociation of water

Leakage of beneficial materials

Ionization & Excitation of atoms making up the cell

Formation of free radicals

7 / 10

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

Causes the cell to multiply

Repairs itself within a short time

Leads to the immediate death of the cell

Disrupts the function and interrupts the storage of energy via ATP

8 / 10

How does radiation primarily affect the nucleus of a cell?

Causes immediate rupture of the nucleus

Disrupts energy storage in the nucleus

Increases permeability and leakage

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

9 / 10

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

The cell membrane becomes impermeable

The cell begins to regenerate rapidly

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

The cell's energy reserves are depleted

10 / 10

What initiates the biological effects of radiation in cells?

Multiplication of atoms

Reduction of atoms

Ionization of atoms

Absorption of atoms

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