horticulture plant cells. cell wall only in plant cells protection and support rigid and stiff: made...
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Horticulture
Plant Cells
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Cell WallONLY IN PLANT CELLSProtection and support
Rigid and stiff: Made of Cellulose
Permeable (allows substances to pass through)
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Cell Membrane• Protect and support
• Controls materials in and out
• 8 millionths of a mm thick (it would take 12,500 of them stacked to = the thickness of a piece of paper!!!!!!!)
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Nucleus• Control Center: regulates
activities– Nuclear Membrane: controls
materials in and out– Chromosomes: thin, rod-shaped,
carry on traits– Nucleolus: makes ribosomes
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Endoplasmic Reticulum
-Carries proteins through the cell-System of passageways
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Ribosomes• “Protein Factory”
• Carried by the ER through the cell
• Synthesize proteins
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Ribosomes• Synthesize protein• Carried by the “ER”
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Mitochondria• Supplies Energy to the cell by
breaking down sugars
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Cytoplasm• Organelles exist in “jelly-like” substance
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Vacuole• Stores food, water, waste• Can be up to 90% of size of cell• Rigidity/turgor pressure helps plant
stem remain upright
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Lysosomes• Digest food using enzymes• Rare in plant cells---why???• Digest old cell parts
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Chloroplast •GREEN•Trap sunlight, convert to
chemical energy•Contain Chlorophyll•Process: Photosynthesis
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Organelles Found Only in Plants:
1.Cell Wall2.Chloroplast
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Journal # 3 “Cell Drawings”2/24/14
Observe and Draw:1. General Plant Cell2. Cell with chloroplasts3. Onion skin with Iodine
stainSHOW ME!!!!!
Use Petri dishes as field of view!!!!
Neat, lableled and colored!!!
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*Fill Circle with Field of View*COLORS!!!
2. Chloroplasts
100x
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Journal # 3 Plant Cells1.Prepare a stained onion skin slide and sketch.2.Prepare elodea “A” and sketch3.Prepare elodea “B” and sketch4.Sketch and Label a general Plant Cell.5.Sketch and label a cell with chloroplasts.
(4 and 5 are prepared slides)