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Transcript
3.2 Cell Organelles The cytoskeleton gives eukaryotic cells an internal structure and organization. The cytoskeleton has many functions. • supports and shapes cell • helps position and transport organelles • provides strength • assists in cell division • aids in cell movement 3.2 Cell Organelles The nucleus stores genetic information. 3.2 Cell Organelles Many processes occur in the endoplasmic reticulum. There are two types of endoplasmic reticulum. • rough endoplasmic reticulum • smooth endoplasmic reticulum 3.2 Cell Organelles Ribosomes link amino acids to form proteins. 3.2 Cell Organelles Vesicles are membrane-bound sacs that hold materials. 3.2 Cell Organelles Mitochondria supply energy to the cell. 3.2 Cell Organelles Vacuoles are fluid-filled sacs that hold materials. 3.2 Cell Organelles Lysosomes contain enzymes to digest material. 3.2 Cell Organelles Centrioles are tubes found in the centrosomes. • Centrioles help divide DNA. • Centrioles form cilia and flagella. 3.2 Cell Organelles Plant cells have organelles that uniquely suit their needs. A cell wall provides rigid support. 3.2 Cell Organelles Chloroplasts convert solar energy to chemical energy.
