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Transcript
Plant and Animal Cells By Mrs. Hough Falcon Focus Use the periodic table to determine which element symbols are used to spell the word bacon. (3 minutes) Answer: barium, carbon, oxygen, or nitrogen Or Barium, cobalt, nitrogen Parts and Functions of Plant and Animal Cells • Objective: To identify and describe the parts and functions of a plant and animal cell • Essential Question: What are the major functions of organelles in a plant and animal cell? Turn and Talk 1. Turn to the person sitting left of you. 2. Make a list of all of the cell parts that you know from a plant and animal cell. 3. Be prepared to share with the class. Stand and Share • One person from each pair stand up. • Listen to the parts of the plant and animal cell that are shared. • If you have the same items then sit down. • If your items are DIFFERENT continue to stand. Who was the first person to discover cells? Robert Hooke Microscope use by Robert Hooke Cells • A cell is the smallest unit of life that conducts all life functions. Major Structures • Cells have major structures known as organelles. Major Cellular Organelles • Cell wall • Cell membrane • Nucleus • Vacuole • Chloroplast • Mitochondria • Cytoplasm Plant Cell Animal Cell nucleus cytoplasm mitochondria cell membrane vacuole What is the difference between the two cells? • Animal cells only • Plants have: have: • chloroplasts • cell membrane • cell walls • They don’t have chloroplasts because they don’t make their own food. Both Cells Have: • • • • • cytoplasm cell membrane vacuoles mitochondrias nuclei Another View: Plant Cell Animal Cell Functions of Cell Parts: • cell wall- provides shape and support for the plant cell; is mostly made of cellulose Cell membrane • cell membrane- controls the flow of material into and out of the cell • Diffusion is when materials move from an area of higher concentration to an area of lower concentration. • Osmosis is the movement of water across the cell membrane. Cytoplasm: • Cyto means “cell” • Plasm means “liquid” • Cytoplasm- a jelly-like substance found in a cell Nucleus • nucleus- the control center of the cell; it also contains genetic materials Mitochondria • mitochondria- converts sugar into energy • It is known as the powerhouse of the cell Vacuole • vacuole-acts as a temporary storage center Chloroplasts • Chloroplasts- contain chlorophyll used to make food in plant cells Ticket out the Door: True or False 1. Plant and animal cells have chloroplasts. 2. The mitochondria is known as a temporary storage center. 3. Osmosis occurs in the cell membrane. 4. Animal cells have a large vacuole. 5. Cytoplasm is found in both the plant and animal cell.