RAD1000 — Week 2, Module 1

The Cell

  • Module 1 of 1
  • Est. Time ~2 hrs
  • Activities Learn · Practice · Do
Learn Practice Do

Module 1

Module Overview

The cell is the basic structural and functional unit of all living organisms. This module covers the structure of eukaryotic cells, the role of the cell membrane in regulating transport, and how DNA stores and expresses genetic information. You will then apply this knowledge to understand how ionizing radiation disrupts normal cellular function — a concept central to the practice of radiologic technology.

Outcomes

Module Objectives

Upon completing this module, you will be able to:

  • Identify the major organelles of a eukaryotic cell and describe their functions.
  • Explain the structure and function of the cell membrane, including selective permeability.
  • Describe the role of DNA in directing cellular activity and how radiation affects it at the molecular level.

Context

Why This Matters

Clinical Connection

Every time a patient undergoes an X-ray or CT scan, ionizing radiation passes through living tissue. Radiation with enough energy can break chemical bonds within cells — and the most critical target is DNA. Understanding how cells respond to radiation damage helps radiologic technologists apply appropriate exposure factors and ALARA principles to minimize biological risk to patients and staff.

The foundational question — why does radiation harm cells? — begins here, with the cell itself.

Start Here

Begin Module 1

Your first step is to work through the Learn activities. These are ungraded study resources — key points, instructor video, required readings, and a Clover interactive lesson. When you finish Learn, continue to Practice before attempting the graded Do activities.