Cell Organelles - Free Worksheet and Infographic

🧬 Cell Organelles Summary

Cells are alive and contain organelles, which are structures that perform specific functions to keep the cell functioning.

Nucleus
Contains DNA, which is the blueprint for making proteins. DNA sends instructions to ribosomes.
Ribosomes
Build proteins, which are used for structure, communication (hormones), fighting disease, and speeding up chemical reactions (enzymes).
Cytoplasm
Gel-like substance that gives the cell shape and allows materials to move. It contains important molecules like sugars, enzymes, and amino acids.
Cell Membrane
A protective barrier that controls what enters and leaves the cell, helping maintain balance (homeostasis).
Cell Wall (plants and fungi only)
Rigid outer layer that provides support, protection, and prevents water loss.
Chloroplasts (plant cells only)
Site of photosynthesis—use sunlight to make sugar for energy.
Lysosomes
Break down waste, old cell parts, and large molecules using digestive enzymes.
Mitochondria
Known as the “powerhouse” of the cell—produces ATP, the cell’s main energy source.