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…DNA which contains genes w/ codes for proteins..

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 – –With ribosomes

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 – –Without ribosomes. – –Both help in production of proteins and lipids.

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. Golgi Apparatus processes, sorts and delivers proteins. Vesicles are membrane-bound sacs that separate material from cytoplasm….transports protein to Golgi App.

3.2 Cell Organelles Other organelles have various functions.

3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell…convert molecules of food into usable energy.

3.2 Cell Organelles Other organelles have various functions. Mitochondria supply energy to the cell. Vacuoles are fluid-filled sacs that hold materials needed by a cell like water, food, ions, enzymes….very large in plants.

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 worn out cell parts and defend a cell from invaders (bacteria or viruses).

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 centrosome.

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 centrosome. – –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. – –Not in plants.

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.