Knowledge Check
Which cellular organelle contains the genetic material (DNA) and directs the activities of the cell?
RAD1000 — Week 2
Self Assessment: Cellular Biology
Practice
Not Graded
Practice
Self Assessment Overview
This self assessment covers the material from Modules 1 and 2, Topics 1 and 2. Use it to check your understanding of cell structure and radiation effects before attempting the graded Do activities. All questions are ungraded — you can attempt each as many times as you need and review your answers immediately.
Work through the questions in order. If a question feels uncertain, return to the relevant topic in the modules before continuing.
Topic 1
Cell Structure & Function
True or False?
The mitochondria is often called the “powerhouse of the cell” because it is responsible for producing ATP through cellular respiration.
Fill in the Blank
During the cell cycle, cells are most vulnerable to radiation-induced DNA damage that cannot be repaired correctly during __________.
Topic 2
Radiation Effects on Cells
Knowledge Check
Approximately what percentage of radiation-induced cellular damage is attributed to indirect effects (free radical damage)?
True or False?
A DNA double-strand break is considered more difficult to repair than a single-strand break and is more likely to result in permanent genetic damage.
Application
Putting It Together
Fill in the Blank
When a patient receives a low-dose diagnostic X-ray, most of the cellular damage to soft tissue cells occurs through __________.
Self Assessment Complete
You have finished the Week 2 Self Assessment. If any questions felt unclear, review the relevant topic in Modules 1 or 2 before moving on. When you are ready, proceed to the graded Do activities in D2L.