FUN 1 EO: 1.25 - Radiation Protection Tech.

FUN 1 EO: 1.25

1 / 10

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

Cell Membrane

Nucleus

Mitochondria

Cytoplasm

2 / 10

What initiates the biological effects of radiation in cells?

Multiplication of atoms

Reduction of atoms

Ionization of atoms

Absorption of atoms

3 / 10

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

H + H = H2O2

OH + OH = H2O2

H2 + OH = H2O2

H + OH = H2O2

4 / 10

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

Disrupts the function and interrupts the storage of energy via ATP

Leads to the immediate death of the cell

Repairs itself within a short time

Causes the cell to multiply

5 / 10

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

Leakage of beneficial materials

Disassociation of water

Formation of free radicals

Ionization & Excitation of atoms making up the cell

6 / 10

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

Immediate rupture

Negligible effect

Increases permeability

Severe damage

7 / 10

How does radiation primarily affect the nucleus of a cell?

Disrupts energy storage in the nucleus

Causes immediate rupture of the nucleus

Increases permeability and leakage

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

8 / 10

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

The cell's energy reserves are depleted

The cell begins to regenerate rapidly

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

The cell membrane becomes impermeable

9 / 10

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

500 - 1,000 rad

3,000 - 5,000 rad

100 - 500 rad

1,000 - 3,000 rad

10 / 10

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

Formation of free radicals

Ionization of the nucleus

Repair of mitochondria

Rupture of the cell membrane

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