PENGENALAN SEL - IPA KELAS 8 SMP KURIKULUM MERDEKA

Introduction

This tutorial provides an overview of cell biology for eighth-grade students, based on the video "PENGENALAN SEL." It aims to introduce the fundamental concepts of cells, their structures, and functions, making it suitable for students studying under the Merdeka Curriculum.

Step 1: Understanding What Cells Are

• Cells are the basic units of life.
• Every living organism is made up of cells, which can be unicellular (single-celled) or multicellular (many cells).
• Cells perform essential functions, allowing organisms to grow, reproduce, and respond to their environment.

Step 2: Exploring Cell Structures

Familiarize yourself with the main components of a cell

• Cell Membrane: Protects the cell and controls what enters and exits.
• Cytoplasm: The jelly-like substance inside the cell where organelles are found.
• Nucleus: The control center of the cell that houses DNA.
• Organelles: Specialized structures within the cell that perform specific functions.
  • Examples include mitochondria (energy production) and ribosomes (protein synthesis).

Step 3: The Difference Between Plant and Animal Cells

Recognize the key differences

• Plant cells have a cell wall for added protection and chloroplasts for photosynthesis.
• Animal cells do not have a cell wall or chloroplasts but have centrioles that assist in cell division.

Step 4: Functions of Cells

Identify the primary functions of cells

• Energy Production: Cells convert nutrients into energy through cellular respiration.
• Growth and Repair: Cells divide to allow growth and replace damaged tissues.
• Reproduction: Cells can reproduce through processes such as mitosis and meiosis.

Step 5: Importance of Cells in Living Organisms

Understand why cells are vital

• Cells interact with each other to form tissues and organs.
• They enable organisms to adapt to their environment and maintain homeostasis (stable internal conditions).

Conclusion

Cells are fundamental to all living organisms, serving as the building blocks of life. By understanding their structure and function, students gain insights into biology and the complexity of life. For further exploration, students can investigate specific types of cells or delve deeper into cellular processes such as photosynthesis and respiration.