Radiation Bio - Test 1 Reveiw

Front

Where is DNA located in a cell?

Back

DNA is located in the nucleus.

Front

What causes attenuation in radiation?

Back

Attenuation is caused by both absorption and scattering.

Front

Which type of radiation has the highest Oxygen Enhancement Ratio (OER)?

Back

Diagnostic x-rays have the highest OER.

Front

How does tissue radiosensitivity change under different oxygen conditions?

Back

Tissue is more radiosensitive under high oxygen conditions and less radiosensitive under hypoxic conditions.

Front

Where are proteins synthesized in the cell?

Back

Proteins are made in the ribosomes.

Front

Define attenuation in the context of radiation.

Back

Attenuation refers to the reduction in the intensity of radiation as it passes through a material.

Front

What is the role of the nucleus in a cell?

Back

The nucleus houses the cell's DNA and is responsible for controlling cellular activities.

Front

Explain the concept of Oxygen Enhancement Ratio (OER).

Back

OER is a measure of how much more effective radiation is in the presence of oxygen compared to anoxic conditions.

Front

What is the significance of radiosensitivity in tissues?

Back

Radiosensitivity indicates how susceptible a tissue is to damage from radiation, which is crucial in radiation therapy.

Front

What are ribosomes and their function?

Back

Ribosomes are cellular structures that synthesize proteins by translating messenger RNA.