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Cell parts and functions
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• http://www.forgefx.com/casestudies/prenticehall/ph/cells/cells.htm
• Plant and animal cell review game
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# 1• Cell membrane• Allows the movement of material
(food, water, oxygen, wastes ) in and out of the cell
• Called diffusion
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#2• Cytoplasm• Goopy cell filler that holds most of
the cells water
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#3 dots
• Ribosomes• Makes proteins
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#3 tunnels
• ER (endoplasmic reticulum)• Passageway for material to move
through the inside of the cell
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#4• Nucleus• Control center of the cell
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# 5• Chromosomes• Inside nucleus, contains DNA,
controls traits
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# 6
• Vacuole• Hole used to store food, water or
waste
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# 7• Mitochondria• Makes energy (E) from food
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# 8
• Lysosomes• Digests foreign material in the cell
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# 9• Chloroplast• Performs photosynthesis to get
energy from sun
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# 10• Cell Wall• Contains cellulose, to protect and
support the cell
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Spontaneous Generation
• POOF!• Life can just appear• Mice come from grain (poof)• Food rots because of bad spirits in
the air
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Biogenesis
• Life only comes from living organisms
• 1600’s- Redi did a controlled experiment to disprove spontaneous generation
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Microscope
• Invented by van Leeuwenhoek in 1675
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Then…..
• 1678 Hooke named CELLS
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Cell Theory
• 1. All living things are made of cells
• 2. Cells do all the work in the body• 3. Cells only come from other cells
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To Be Alive…. 3R’s
• Respiration• Breathe and eat to make energy in
mitochondria or chloroplast• Response• Can react to a stimulus• Reproduction• As a species
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Where is the diameter of the low power field of
view?
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What is the diameter of this microscope, if the
ruler is in mm?
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Scope B?
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Scope C?
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Using Scope C measurement
• Find the length of the grasshopper, truck, and lemon (all microscopic of course.)
• Remember, 1/4th of the diameter is 0.25 x 4.5=
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