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Study stack 1
Cell structures
Term | Definition |
---|---|
Cytoplasm | inside the cell, composed of gel-like substance |
Golgi apparatus | Processes and packages protein molecules, for export from the cell. Membranous organelle that consists of tiny sacs of cisternae |
Lysosomes | Membranous organelle, pinch inward and separate into a vesicle. Help cells break down proteins- self eating = autophagy |
Proteasomes | Protein destroying organelle, breaks down abnormal and misfolded proteins that are no longer needed. |
Peroxisomes | Detoxify harmful substances that may enter the cell. Most often seen in the kidney and liver. |
Mitochondria | "Power plant" of cell, has 2 membranes |
Nucleus | Largest cell structure that contains DNA molecules. |
Cytoskeleton | Function as cell movement, forms extensions- microvilli, cilia, flagella |
Plasma membrane | Phospholipid bilayer which has cholesterol and proteins, serves as a boundary of cell |
Microvilli | Short fingerlike projections, increases cells surface area, common in the intestines. |