1
Learning Objectives
- Address major components of the cell
- Identify the major functional components of the cell
- Identify the major transport mechanisms of the cell membranes
- Illustrate the relationships among the organelles of a cell
- Illustrate the cell cycle
Much like a skyscraper relies on steel beams and circuits, the human body depends on cells—the fundamental units of life. Each cell is a dynamic system, with specialized components working together to sustain function and survival.
The cell membrane controls what enters and exits through various transport mechanisms, ensuring balance. Inside, organelles such as the nucleus, mitochondria, and endoplasmic reticulum interact to produce energy, synthesize proteins, and regulate activity. These structures work in unison, keeping the cell efficient and responsive.
Cells also follow a precise cycle of growth and division, allowing the body to develop, repair, and maintain itself. By exploring the cell’s major components, transport systems, and interconnected organelles, we uncover the microscopic processes that sustain life.
