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Transcript
All organisms are made of cells. Your own body has more than 200 kinds of cells. Plant and animal cells have several basic structures, called organelles, that help them perform life processes. Organelles have functions that help keep the cell alive. 1. Cytoplasm –this is a gel-like liquid that fills the region between the nucleus and the cell membrane. It is mostly made of 1 2 5 water and organelles float in it. The cytoplasm supports all of the cell’s structures. 2. Vacuoles – a membrane covered structure for storage. It can store water, food, and wastes. 3 3. Cell membrane – this flexible wrapping surrounds animal cells. It is a layer around the outside of the cell. It 4 controls what materials move in and out of the cell. 4. Mitochondria – these supply energy for the cell because they break down food; often called the “power house” of the cell 5. Nucleus – control center of the cell that controls all of the cell’s activities. Cells grow, move, and may divide at some point. All of these activities are controlled by the nucleus. All organisms are made of cells. Your own body has more than 200 kinds of cells. Plant and animal cells have several basic structures, called organelles, that help them perform life processes. Organelles have functions that help keep the cell alive. 1. Cytoplasm –this is a gel-like liquid that fills the region between the nucleus and the cell membrane. It is mostly made of water and organelles float in it. The cytoplasm supports all of the cell’s structures. 2. Vacuoles – a membrane covered structure for storage. It can store water, food, and wastes. 4 3. Cell membrane – this flexible wrapping surrounds 5 animal cells. It is a layer around the outside of the cell. It controls what materials move in and out of the cell. 2 4. Mitochondria – these supply energy for the cell because they break down food; often called the 3 “power house” of the cell 5. Nucleus – control center of the cell that controls all 1 of the cell’s activities. Cells grow, move, and may divide at some point. All of these activities are 6 controlled by the nucleus. 6. Chloroplasts – green structure when the energy from sunlight is used to produce food for the plant. These structures are green because they contain chlorophyll which is a chemical that absorbs sunlight. 7. Cell Wall – plant cells have an additional outer 7 covering called the cell wall. It is a stiff outer layer that provides the cell with strength and support.