3. Cell: Structure and Function
The chapter covers the essential role of cells as the basic unit of life, detailing the two main types of cells: prokaryotic and eukaryotic. It provides an overview of various cell organelles and their specific functions, emphasizing the differences between plant and animal cells. Understanding these concepts is vital for grasping the biological processes that support life.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- All living organisms consist of cells, which serve as the fundamental structural and functional units.
- Cells can be categorized into prokaryotic and eukaryotic types based on their structural characteristics.
- Different organelles within cells perform unique functions that are essential for cellular operation and overall organism vitality.
Key Concepts
- -- Cell Theory
- The principle stating that all living organisms are composed of cells and that all cells arise from pre-existing cells.
- -- Prokaryotic Cells
- Simple cells that lack a true nucleus and membrane-bound organelles, such as bacteria.
- -- Eukaryotic Cells
- Complex cells that have a defined nucleus and membrane-bound organelles, found in plants, animals, fungi, and protists.
- -- Cell Organelles
- Specialized structures within a cell that perform distinct functions necessary for cellular operations.
- -- Lysosomes
- Organelles that contain digestive enzymes to break down waste and cellular debris.
- -- Chloroplasts
- Organelles found in plant cells that contain chlorophyll and carry out photosynthesis.
- -- Cell Wall
- A rigid outer layer of plant cells providing structural support and protection.
Additional Learning Materials
Supplementary resources to enhance your learning experience.