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Transcript
3.2 Cell Organelles KEY CONCEPT Eukaryotic cells share many similarities. 3.2 Cell Organelles Cells have an internal structure. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles – provides strength 3.2 Cell Organelles Cells have an internal structure. • The cytoskeleton has many functions. – supports and shapes cell – helps position and transport organelles – provides strength – assists in cell division 3.2 Cell Organelles Cells have an internal structure. • 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 Several organelles are involved in making and processing proteins. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. – rough endoplasmic reticulum 3.2 Cell Organelles Several organelles are involved in making and processing proteins. • The nucleus stores genetic information. • Many processes occur in the endoplasmic reticulum. • There are two types of endoplasmic reticulum. – rough endoplasmic reticulum – smooth endoplasmic reticulum 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) • Ribosomes link amino acids to form proteins. 3.2 Cell Organelles Several organelles are involved in making and processing proteins. (continued) • Ribosomes link amino acids to form proteins. • Vesicles are membrane-bound sacs that hold materials. 3.2 Cell Organelles Other organelles have various functions. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes. – Centrioles help divide DNA. 3.2 Cell Organelles Other organelles have various functions. • Mitochondria supply energy to the cell. • Vacuoles are fluid-filled sacs that hold materials. • Lysosomes contain enzymes to digest material. • Centrioles are tubes found in the centrosomes. – Centrioles help divide DNA. – Centrioles form cilia and flagella. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. • A cell wall provides rigid support. 3.2 Cell Organelles Plant cells have cell walls and chloroplasts. • A cell wall provides rigid support. • Chloroplasts convert solar energy to chemical energy.