cells to systems lesson 1. cells to systems what things need to happen in a cell for it to live?
TRANSCRIPT
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Cells to Systems
Lesson 1
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Cells to Systems
What things need to happen in a cell for it to live?
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Cells to Systems
Purpose• We are going to read about cells, the smallest
living parts of a plant or animal. • The purpose for reading, is to discover what a
cell is made of, what a cell needs, and what a cell does.
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Cells to Systems
Quick Summary
• A cell is the basic building block of living things.
• Cells need a way to take in food, turn the food into energy, and get rid of waste products.
• Cells combine oxygen and food to get energy, a process called cellular respiration.
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Cells to Systems
• What are two functions of every cell?• During cellular respiration in humans, what gas is
used by the cell and what gas is produced by the cell?
• What would happen to a cell that receives no more oxygen or food?
• What is the most basic unit of living things? • Suppose you saw a small organism move across your
desk. Would you infer that this organism was multicellular or a single cell?
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Bill Nye Cells
http://www.youtube.com/watch?v=y8gZCTjAbVs
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Cells to Systems
• Quick Summary– Some common cell parts of plant and animal cells
include the nucleus, mitochondria, cell membrane, vacuole, and cytoplasm.
– Plant cells contain chloroplasts and a cell wall, cell parts not found in animal cells.
– A cell's nucleus is its control center; its mitochondria are energy producers; the cytoplasm holds smaller parts in the cell; the vacuole provides storage; and the cell membrane holds the contents of the cell together and controls what passes into and out of the cell.
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Cells to SystemsPlant Cells Animal Cells
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Cells to Systems
• Questions– What do cell walls provide? – How are plants, animals, and other living things
different from nonliving things? – What might happen to a cell that continues to get
bigger and bigger? – What might happen to a cell that continues to get
bigger and bigger? – List five parts of all cells and their jobs.