9700 · 1.2
Cells as the basic units of living organisms
Welcome to topic 1.2: **Cells as the basic units of living organisms**! This fundamental topic underpins almost everything else you'll study in Cambridge International AS & A Level Biology. Cells are not just tiny components; they are the **foundational units** that make up all life, from the simplest bacteria to the most complex animals and plants. Understanding their structure, function, and diversity is crucial for success. Let's delve into why these microscopic marvels are so significant.
Need to know
What you need to know
- Recall and explain the three tenets of the cell theory.
- Identify and describe the key structural differences between prokaryotic and eukaryotic cells.
- State and explain the seven fundamental characteristics of living organisms.
- Describe the structure and function of the main organelles in a eukaryotic cell.
- Perform calculations involving magnification and actual size from micrographs.
Explanation
Cells as the basic units of living organisms
- Recall and explain the three tenets of the cell theory.
- Identify and describe the key structural differences between prokaryotic and eukaryotic cells.
- State and explain the seven fundamental characteristics of living organisms.
- Describe the structure and function of the main organelles in a eukaryotic cell.