monday and tuesday 8/19 and 8/20
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Monday and Tuesday 8/19 and 8/20. 1. Do Now 2. Finish Graphic organizer (structure and function of organelles) 3. Lab Safety 4. Cell Project Info 5. Break 6. Notes-Plants vs. animal cells 7. Study? Homework: Study for function quiz on Wednesday 8/21. Lab Safety. - PowerPoint PPT PresentationTRANSCRIPT
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Monday and Tuesday8/19 and 8/20
• 1. Do Now• 2. Finish Graphic organizer (structure and function of
organelles)• 3. Lab Safety• 4. Cell Project Info• 5. Break • 6. Notes-Plants vs. animal cells• 7. Study?• Homework: Study for function quiz on Wednesday 8/21
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Lab Safety
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General Safety Rules
1. Listen to or read instructions carefully before attempting to do anything.
2. Wear safety goggles to protect your eyes from chemicals, heated materials, or things that might be able to shatter.
3. Notify your teacher if any spills or accidents occur.
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General Safety Rules
4. After handling chemicals, always wash your hands with soap
and water.5. During lab work, keep your
hands away from your face.6. Tie back long hair.
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General Safety Rules
7. Roll up loose sleeves.8. Know the location of the fire
extinguisher, fire blanket, eyewash station, and first aid kit.
9. Keep your work area uncluttered. Take to the lab station only what is necessary.
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General Safety Rules10. It is suggested that you wear
glasses rather than contact lenses.
11. Never put anything into your mouth during a lab experiment.
12. Clean up your lab area at the conclusion of the laboratory
period.13. Never “horse around” or play
practical jokes in the laboratory.
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Glassware Safety1. Chipped or cracked glassware
should not be used. Show it to the teacher.
2. Broken glassware should not be disposed of in a classroom
trashcan. There is a special glass disposal container for it.
3. When pouring liquids into glassware, make sure the container you are pouring into is resting on a table at least a hands breadth from the edge.
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Glassware Safety4. Pour down a glass stirring rod to
prevent liquids from splattering.5. If a piece of glassware gets broken,
do not try to clean it up by yourself. Notify the teacher.
6. When inserting glass tubing into a rubber stopper, apply a lubricant like glycerin to the glass and use a twisting motion.
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Glassware Safety7. Do not place hot glassware in
water. Rapid cooling may make it shatter.
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Chemical Safety1. Wear protective goggles and a
lab apron whenever heating or pouring hazardous chemicals.
2. Never mix chemicals together unless you are told to do so (and then only in the manner specified).
3. Never taste any chemicals (you should never taste anything in the lab).
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Chemical Safety4. If you need to smell the
odor of a chemical, waft the fumes toward your nose with one hand. Do not put your nose over the container and inhale the fumes.
5. Never pour water into a concentrated acid. Acid
should be poured slowly into water.
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Chemical Safety6. Follow the instructions of
your teacher when disposing of all chemicals.
7. Wash your hands after handling hazardous chemicals.
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Electrical Safety1. Lay electrical cords where
no one can trip on them or get caught in them.
2. Be sure your hands and your lab area are dry before using electrical equipment.
3. Never poke anything into electrical outlets.
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Electrical Safety4. Unplug cords by pulling the
plug and not the cord.5. Unplug all electrical
equipment at the end of the lab period.
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Heating Safety1. Let burners and hotplates
cool down before touching them. Test to see if they are cool enough by bringing the back of your hand
close to them.2. Use tongs and/or protective
gloves to handle hot objects.3. Never reach across an open
flame or burner.
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Heating Safety4. The only type of glassware that may
safely be heated is either Kimax or Pyrex.
5. Always point the top ends of test tubes that are being heated away from people.
6. When heating a test tube, move it around slowly over the flame to
distribute the heat evenly.
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Heating Safety7. Only glassware that is
thoroughly dry should be heated.8. Heat glassware by placing it on a
wire gauze platform on a ring stand. Do not hold it in your hand.
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Heating Safety9. When lighting a burner, wait
until the striker is in place before you turn on the gas.
10. The amount of air can be adjusted by the air supply valve below the tube of the burner. This regulates the flame temperature and color.
11. Never leave a burner or hotplate unattended.
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First AidInjury: BurnsWhat To Do: Immediately flush with
cold water until burning sensation is lessened.
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First Aid
Injury: Cuts, bruisesWhat To Do: Do not touch an open
wound without safety gloves. Pressing directly on minor cuts will stop bleeding in a few minutes. Apply cold compress to bruises to
reduce swelling.
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First AidInjury: FaintingTo Do: Provide fresh air and have the
person recline so that their head is lower than the rest of their body.
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First AidInjury: EyesWhat To Do: Flush eyes
immediately with plenty of water for several minutes. If a
foreign object is lodged in the eye, do not allow the
eye to be rubbed.
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First Aid
Injury: PoisoningWhat To Do: Find out what
substance was responsible for the poisoning and alert the
teacher immediately.
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First AidInjury: Spills on the skinWhat To Do: Flush with large
quantities of water. For acid spills, apply baking soda solution. For base spills, apply vinegar or boric acid.
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First AidInjury: Electrical shockWhat To Do: Shut off the current
at the source. Remove wire with rubber gloves. Alert the teacher immediately.
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http://www.youtube.com/watch?v=xJG0ir9nDtc
http://www.youtube.com/watch?v=riKp30dh6cA
http://www.youtube.com/watch?v=s01AmWcTbxA
Extra Credit: Now you try it!!!!!!!!Due August 30, 2013
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Thurs/Friday 8-22 and 8-23
• 1. Do now• 2. Check homework (5L) • 3. Correct Quizes• 4. Cell Project Questions• 5. Notes-Plant vs. Animal cells• 6. Break• 7-Graphic organizer – Respiration and
Photosynthesis
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Cell Membrane
• Separates the cell from the outside environment
• Allows things to come in and out of cell
• The “skin of the cell”
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Cytoplasm
• Gel like fluid that moves all the organelles around the cell
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Cytoskeleton
• Framework (looks like webs) that gives cell their shape• Important for
animal cells
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Nucleus• Control center of the
cell• Storage area for all the
genetic information• Surrounded by nuclear
envelop• The center of the
nucleus is called the nucleolus ( where ribosomes are made)
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Ribosomes
• Factories that produce proteins• Can be attached
to endoplasmic reticulum or just float in cytoplasm
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Endoplasmic Reticulum
• Passage way that helps carry material throughout the cell• Close to nucleus• Helps make
proteins
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Golgi Bodies • Receive proteins and other materials from E.R. and distribute it to other parts of cell
• “Delivery system of the cell”
• Looks like a stack of plates
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Mitochondria
• Rod shaped organelle (peanut) that converts food into usable energy
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Lysosomes • Have chemical that break down waste, large food particles, and old cell parts
• “cells clean up crew”• Small round
organelles (bigger than ribosomes)
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Vacuoles • Water filled sac that store food, waste, and other materials needed for the cell
• Animal cells have small vacuoles
• Plant cells have large “Central vacuoles”
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Chloroplasts
• Capture energy from sunlight and use it as food for the cell• Make leaves
green• Green structures
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Cell Walls• Protects and
support the cell• Made of strong
cellulose (makes plant rigid)• Gives plant cells
their boxy appearance
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Large Central Vacuole
• Plant cells have an enlarged central vacuole to hold a lot of water.
• Helps give plants its shape
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How are plant and animal cells the same?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
-Have 10 of the same organelles that function similarly-all need and have water- All need carbohydrates, lipids, proteins, nucleic acids
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How are plant and animal cells the same?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
Carbohydrates: cells use sugars and starches for energyMakes up structures like cell walls and cell membranes
Lipids: fats oils and waxes that have more energy than carbsMakes up most of cell membrane
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How are plant and animal cells the same?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
Proteins: found in meat eggs fish nuts and beansMost of the organelles are made up of proteins.*Enzymes is a type of protein that speeds up chemical reactions.
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How are plant and animal cells the same?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
Nucleic Acids: • DNA determines the job of the
cell.DNA is found in the nucleus.
• RNA helps make proteins
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How are plant and animal cells different?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
ShapeOrganelles
-Animal cells are round and plant cells are more boxy because of cell wall
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How are plant and animal cells different?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
-Plant cells have chloroplast to get food from sunlight, then the mitochondria converts this food into energy
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How are plant and animal cells different?
Plant vs. Animal Cells 8/22/13/
8/23/13
5R
Plant cells have a large central vacuole where they store water, giving them some structural support
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Summary
• How are animal and plant cells similar?
• How are animal and plant cells different? Be specific!