Grade 8 Science Chapter 1 - Plant Cell Diagram

Study Notes

Plant Cell Organelles

Endoplasmic Reticulum:
- Folded organelle responsible for protein synthesis.
- Acts as a transport network within the cell.
Golgi Apparatus:
- Combines proteins from the endoplasmic reticulum.
- Functions as a packaging and distribution center for proteins, sending them to various cell locations or outside the cell.
Mitochondria:
- Known as the powerhouses of the cell.
- Break down food particles to release stored energy, functioning as the energy currency of the cell.
Vacuole:
- Large, sac-like organelle used for storage.
- Holds excess food, waste products, and other substances important for cell homeostasis.
Cytoplasm:
- Jelly-like substance filling the cell.
- Provides a medium for the movement of food and oxygen to organelles.
Chloroplasts:
- Membrane-bound organelles containing chlorophyll.
- Conduct photosynthesis, converting sunlight, carbon dioxide, and water into glucose and oxygen.
Ribosomes:
- Small organelles crucial for protein production.
- Primarily located in the cytoplasm, they assemble amino acids into proteins.
Cell Membrane:
- Thin, semi-permeable layer surrounding the cytoplasm and organelles.
- Regulates the entry and exit of materials, maintaining the cell's internal environment.
Nucleus:
- Large organelle acting as the control center of the cell.
- Regulates cell activities, including growth, metabolism, and reproduction.
Cell Wall:
- Rigid outer layer surrounding the cell membrane in plant cells.
- Provides structural support and protection, allowing selective passage of substances through its pores.

Description

This quiz focuses on the plant cell diagram covered in Grade 8 Science Chapter 1. It includes essential terms such as Endoplasmic Reticulum, Golgi Apparatus, and Mitochondria, along with their definitions. Test your knowledge of cellular components and their functions within plant cells!