Radiation Protection Chapter 7
Questions and Answers Latest Version
Rated A+
Which type of radiation causes the most biological damage?
✔✔A. Ionizing radiation
B. Non-ionizing radiation
C. Infrared radiation
D. Visible light
What is the primary target of radiation damage in a cell?
A. The cell membrane
✔✔B. DNA
C. The cytoplasm
D. The mitochondria
Which cells are most sensitive to radiation exposure?
✔✔A. Rapidly dividing cells
B. Fully developed nerve cells
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,C. Fat cells
D. Muscle cells
What happens when radiation damages DNA?
✔✔A. It can cause mutations, cell death, or repair errors
B. The DNA becomes stronger
C. The cell ignores the damage
D. The DNA absorbs more radiation
Which of the following is a possible effect of radiation exposure?
A. Enhanced immune function
✔✔B. Cell death, mutations, or cancer
C. Increased energy production
D. Stronger bones
What is the relationship between radiation dose and biological damage?
✔✔A. Higher doses increase the risk of damage
B. Lower doses always cause greater damage
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, C. The dose has no effect on biological damage
D. High doses make cells more resistant to future exposure
Which of the following best describes direct radiation damage?
✔✔A. Radiation interacts directly with DNA
B. Radiation changes the shape of the cell membrane
C. Radiation only affects the cytoplasm
D. Radiation increases the temperature of the cell
What is the primary cause of indirect radiation damage?
A. DNA absorbing radiation directly
B. Proteins breaking apart from radiation
✔✔C. Radiation interacting with water molecules to produce free radicals
D. The nucleus shrinking after exposure
What are free radicals?
✔✔A. Highly reactive molecules that can damage cells
B. A type of radiation particle
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Questions and Answers Latest Version
Rated A+
Which type of radiation causes the most biological damage?
✔✔A. Ionizing radiation
B. Non-ionizing radiation
C. Infrared radiation
D. Visible light
What is the primary target of radiation damage in a cell?
A. The cell membrane
✔✔B. DNA
C. The cytoplasm
D. The mitochondria
Which cells are most sensitive to radiation exposure?
✔✔A. Rapidly dividing cells
B. Fully developed nerve cells
1
,C. Fat cells
D. Muscle cells
What happens when radiation damages DNA?
✔✔A. It can cause mutations, cell death, or repair errors
B. The DNA becomes stronger
C. The cell ignores the damage
D. The DNA absorbs more radiation
Which of the following is a possible effect of radiation exposure?
A. Enhanced immune function
✔✔B. Cell death, mutations, or cancer
C. Increased energy production
D. Stronger bones
What is the relationship between radiation dose and biological damage?
✔✔A. Higher doses increase the risk of damage
B. Lower doses always cause greater damage
2
, C. The dose has no effect on biological damage
D. High doses make cells more resistant to future exposure
Which of the following best describes direct radiation damage?
✔✔A. Radiation interacts directly with DNA
B. Radiation changes the shape of the cell membrane
C. Radiation only affects the cytoplasm
D. Radiation increases the temperature of the cell
What is the primary cause of indirect radiation damage?
A. DNA absorbing radiation directly
B. Proteins breaking apart from radiation
✔✔C. Radiation interacting with water molecules to produce free radicals
D. The nucleus shrinking after exposure
What are free radicals?
✔✔A. Highly reactive molecules that can damage cells
B. A type of radiation particle
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