Label the main structures of a human cell.
Cell membrane, cytoplasm, nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes.
What is the function of the cell membrane?
Controls what enters and leaves the cell; protects and maintains cell shape.
What is the function of the cytoplasm?
Jelly-like fluid that holds organelles and allows chemical reactions to occur.
What is the function of the nucleus?
Control center of the cell; contains DNA and regulates growth, repair, and reproduction.
What is the function of mitochondria?
Produce energy (ATP) for cell activities. often called the “powerhouse” of the cell.
What is the function of ribosomes?
Make proteins needed for cell repair and growth.
What is the function of the endoplasmic reticulum (ER)?
• Rough ER: makes proteins (with ribosomes)
• Smooth ER: makes lipids and detoxifies substances
What is the function of the Golgi apparatus?
Packages and transports proteins and other molecules around the cell.
What is the function of lysosomes?
Break down waste, old cell parts, and invading bacteria.
