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Tuesday, January 15, 2013 Wednesday, January 16, 2013 Tuesday, January 15, 2013 Wednesday, January 16, 2013 “Practice Scenarios” Cell Transport Warm Up: List the three points of the cell theory from your homework last night. Describe the difference between unicellular and multicellular organisms. Cell – the basic unit of all life Semi-permeable – some objects can pass through cell membrane (mostly water) Basic Cell Organelles: Cell Membrane – protects cell/gatekeeper Cytoplasm – fluid inside cell/ helps keep shape Nucleus – typically holds cells genetic material Prokaryotic vs. Eukaryotic Organisms Prokaryotic – single-celled organisms, no nucleus - usually bacteria, not very complex Eukaryotic – multi-cellular organisms, nucleus - usually more complex with more organelles Movement Into and Out of Cells: Diffusion: movement from an area of high concentration to low concentration Osmosis: diffusion of water across a semi-permeable membrane Homework: Complete the “practice” found on the last notebook page for today Page 81 Page 82
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Using Energy to Transport Materials Across the Cell Membrane
Two Main Categories: Passive Transport/Diffusion (usually small particles) – Moves substances from areas of high concentration to areas of low concentration Example: Food coloring added to a beaker of water: before after Active Transport (usually larger particles) – Relies on the cell using energy (ATP) to move particles across the membrane Three Categories: 1. Transport Proteins: Special proteins use energy/ATP to pump materials into cell (gatekeeper) 2. Endocytosis: membrane surrounds particles to move them inside (see diagram on next slide) 3. Exocytosis : release of substances from inside vesicles through joining and then releasing from the cell membrane (see diagram on next slide)
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Exchanging materials between the cell and its environment
Passive Transport Active Transport Transport Proteins use ATP Diffusion Endocytosis (reverse for Exocytosis) Osmosis
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Video’s and Examples Passive and Active Transport Animations
Endocytosis and Exocytosis Animation
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Homework/Practice DIRECTIONS- First Identify if the process is moving materials by active or passive transport. Then determine if the process is diffusion, osmosis, transport proteins, endocytosis, or exocytosis. 1. WATER MOVES OUT OF PLANT LEAF, CAUSING IT TO WILT AND DRY. 2. IF YOU PLACE A TEA BAG IN WATER AND TEA IS MADE. 3. IF FOOD THAT IS TOO LARGE TO ENTER THROUGH THE CELL MEMBRANE IS BROUGHT INTO THE CELL TO KEEP IT FROM DYING. 4. YOU SMELL THE DELICIOUS ODOR OF BAKING COOKIES BEFORE YOU ENTER THE KITCHEN. 5. FRESH WATER MOVES INTO A SINGLE CELLED ORGANISM. 6. A ONE CELLED AMEOBA SURROUNDS A PARTICLE OF FOOD. 7. EXCESS SALT THAT AN IGUANA HAS SOAKED UP IN THE OCEAN IS REMOVED THROUGH THE NOSTRILS. 8. IF A PLANT PUMPS MINERALS FROM THE SOIL TO THE ROOT OF THE PLANT.
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Organelle Scavenger Hunt - BYOT
Thursday, January 17, 2013 Friday, January 18, 2013 Thursday, January 17, 2013 Friday, January 18, 2013 Organelle Chart Organelle Scavenger Hunt - BYOT Warm –up How are the various jobs in a town or a company divided up among people? Provide examples. Why is it effective to divide the labor in this way? Organelle: – parts of a cell with specific function – structure in the cytoplasm of eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances Mini-web quest using Homework: Create chart of cell organelles and their functions Tell whether the part is in plant, animal, or both cells Page 83 Page 84
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Make a Cell Concept Map (see below)
Wednesday, January 23, 2013 Thursday, January 24, 2013 Wednesday, January 23, 2013 Thursday, January 24, 2013 Make a Cell Concept Map (see below) Cell Organelle Quiz and Cell Cycle Notes Respiration and Photosynthesis: - reactions are complete opposites of each other Respiration: C6H12O6 + 6O ATP + 6 H2O + 6 CO2 Photosynthesis: Sun + 6 H2O + 6 CO C6H12O6 + 6O2 Warm Up: Job in the Factory Cell Organelle Function of the Organelle Chief Executive Officer (CEO) Assembly line where workers assemble product Finishing/ Packaging department Power Source Security Guard Turn to pages 48 – 52 of your text book and find the steps of each of these processes. Make a t-chart with a numbered list to explain the reaction step by step. Photosynthesis Respiration Homework: Make a concept map with Cell in the middle and 4 spokes coming out titled: division, transport, animal and plant. List the vocabulary words we’ve done in class under the specific category they belong to. Page 85 Page 86
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Cell Organelle Quiz and Cell Cycle Notes Function of the Organelle
Wednesday, January 23, 2013 Thursday, January 24, 2013 Wednesday, January 23, 2013 Thursday, January 24, 2013 Cell Organelle Quiz and Cell Cycle Notes Warm Up: Cell cycle - normal sequence of the development and division of a cell Three main stages: 1) Interphase - cell is performing normal functions and preparing to divide - the longest part of the cycle - cell grows about twice its original size - goes about regular cell activities - DNA is copied to prepare for mitosis 2) Mitosis - nucleus splits and divides - prokaryotes do not do this (no nucleus) - usually the shortest period in cycle - goal of mitosis is to transfer DNA and other cell structures from parent cell to new cell 3) Cytokinesis – occurs directly after mitosis - parent cell pinches off - two genetically identical cells form Job in the Factory Cell Organelle Function of the Organelle Chief Executive Officer (CEO) Assembly line where workers assemble product Finishing/ Packaging department Power Source Security Guard Homework: Page 85 Page 86
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Cell Cycle Mitosis Cytokinesis Interphase Interphase Interphase
Helpful Animation Interphase
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Cell Cycle Diagram Interphase Cytokinesis Mitosis
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Relooping and Steps of Mitosis “Find the Cell Phrase” worksheet
Friday, January 25, 2013 Monday, January 28, 2013 Friday, January 25, 2013 Monday, January 28, 2013 Relooping and Steps of Mitosis “Find the Cell Phrase” worksheet Mitosis notes – See pg 82 E and handout with diagrams or animation below Warm –up 1. Turn to Textbook page 68E and answer questions 25 – 27. Homework: 1. “Find the Cell Phrase” worksheet Page 87 Good Mitosis Animation Page 88
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Finish Cell Brochure and BYOT Next Class Cell Study Guide/Brochure
Tuesday, January 29, 2013 Wednesday, January 30, 2013 Tuesday, January 29, 2013 Wednesday, January 30, 2013 Finish Cell Brochure and BYOT Next Class Cell Study Guide/Brochure Mitosis: Page 82 and 83 E in text Characteristics of Living Things: Organized Use energy for chemical processes Respond to stimuli Grow, develop, adapt Reproduce / contain genetic material All living things are made of cells. Cell Cycle : Page 81 E in Text or diagram below Warm –up: Number 1-5 where your warm up should go, leaving 2 or 3 lines in between each question. Get out your homework and wait for warm up to be revealed to you. Warm Up: Mitosis Animation Homework: Finish the Cell Brochure/Study Guide we started in class today. BYOT next class…be prepared! Page 89 Page 90
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Study for Cell Test and Finish Study Guide
Thursday, January 31 , 2013 Friday, February 1, 2013 Thursday, January 31 , 2013 Friday, February 1, 2013 Study for Cell Test and Finish Study Guide Food, Exercise, and Energy Project calorie - with a lowercase “c,” the term refers to the amount of energy needed to raise the temperature of one gram of water one degree Celsius. Context: When it comes to staying healthy, counting calories is just one aspect. Calorie - with an uppercase “C,” the term refers to the amount of energy required to raise one kilogram of water (about 2.2 pounds) one degree Celsius; one Calorie, or kcal, is equal to 1,000 calories. Context: Nutrition is measured in Calories. diet - everything that is consumed. A balanced diet is based on the principle that healthful foods and appropriate nutrients must be consumed each day Context: Eating a healthful diet helps prevent high cholesterol, high blood pressure, heart disease, and many other health problems. Food Guide Pyramid - a visual representation of the number of recommended daily servings in each of the six food groups; designed by the U.S. Department of Agriculture Context: Use the Food Guide Pyramid as a general guide to help you choose a healthful diet. nutrients - substances, including proteins, carbohydrates, vitamins, and minerals, found in foods that are necessary for good health Context: Teenagers need to consume a great deal of calcium, the nutrient that helps build strong bones and teeth. Warm up: What do you know about these words (below)? 1. Calories 2. Food Pyramid 3. Nutrients 4. Diet Homework: Study for Cell Test Study Guide Class notes Text book – Unit E Page 91 Page 92
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Possible Fictional Characters to Use for Food Energy Project
Thursday, January 31 , 2013 Friday, February 1, 2013 Thursday, January 31 , 2013 Friday, February 1, 2013 Possible Fictional Characters to Use for Food Energy Project Bob Fisher Age: 16 Weight: 245 Height: 5’10” Synthia Lee Age: 18 Weight: 150 Height: 5’8” Dan Smith Age: 17 Weight: 190 Height: 6’2” Kelsey Wilson Age: 15 Weight: 120 Height: 5’2” Page 91 Page 92
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Cell Test and Germ Video
Monday, February 4, 2013 Tuesday, February 5, 2013 Monday, February 4, 2013 Tuesday, February 5, 2013 Read Section 4.3 from Unit E in your textbook Cell Test and Germ Video Warm Up: EOG Workbook, page 304 1 - 15 Important: Skip Numbers 2,9 & 10 Three things I knew that were confirmed in the video: 1. 2. 3. Three things I didn’t know, but now I know because I watched the video: Homework: Read Section 4.3 from Unit E in your textbook Page 93 Page 94
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Single Celled Organisms and Viruses
Wednesday, February 6, 2013 Thursday, February 7, 2013 Wednesday, February 6, 2013 Thursday, February 7, 2013 Single Celled Organisms and Viruses Single Celled Organisms and Viruses Warm Up: Name some diseases that can be spread from person to person by contact. What do you call those types of diseases? Which body system attacks fights disease causing agents? Attach the notes organizer here. As you take notes today, think about which of these 5 categories you would like to learn more about. After the lesson, on a sheet of paper, list your top three choices (top choice first) Homework: Long Term Assignment (due Feb. 19 and 20) Read Chapter 5 (pg E) All Section Reviews (136, 143, 150,157) Define terms on page 158 E Test on Feb 19 and 20 Page 95 Page 96
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-Microbiology is the study of “very small” organisms -many not visible with the “unaided eye” -many can cause disease and affect functions - explores bacteria, protists, some fungi, some parasites, and viruses Bacteria: ___________ Kingdom Protists: Fungi: __________ Kingdom Parasites: Various Kingdoms Viruses: Non-Living Characteristics Examples Reproduction Disease Examples
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Bacteria Characterisics Reproduction Simplest kind of life known
Found everywhere Prokaryotes (DNA not stored in nucleus) Binary fission
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Bacteria 3 main shapes Spiral (also known as Spirillum) Rod (Bacillus)
Round (Coccus) E. Coli – Causes food poisoning Streptococcus – causes strep throat Most spirilla affect animals
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Protists Characteristics Usually single-celled moist environment
Plant-like Protist called Volvox Characteristics Usually single-celled moist environment Grouped by how they move and get food Animal-like Protist called Paramecium Animal-like Protist called Amoeba Plant-like Euglena
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Protists Psudopodia Ciliates
Flagellates Psudopodia Ciliates Move with a whip like tail called flagella Euglena Plant-like Move with tiny hairs called cilia Cilia help capture food Paramecium feeding (animal-like) Move with false feed called psudopods Disease causer –Ameoba causing Dysentery
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Fungi Characteristics 3 groups: mushrooms, molds, yeasts
Act as decomposers and absorbs nutrients Reproduction Mostly asexual Mostly with spore dispersal
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Fungi Good Examples Disease Causing Food Yeast is used to make bread
Penicillin kills bacteria Athlete’s Foot is a parasitic fungal infection caused by causes scaling, flaking, and itch of affected areas
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Parasites Characteristics a harmful relationship to the host
Reproduction depends on the parasite
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Parasites Harmful by definition Tapeworms - from uncooked meat Fleas
Good Examples Disease Causing Harmful by definition Tapeworms - from uncooked meat Fleas Bed bugs - suck blood from sleeping victims
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VIRUSES Characteristics Smaller than bacteria NOT living organisms
Consist of genetic material within a special protein coating called a capsid.
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VIRUSES Reproduction Use host cell to copy DNA and produce new viruses
5 steps to virus multiplication: Attachment Injection Production Assembly Release
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VIRUSES West Nile virus Influenza
Helpful Virus Examples Bad Examples Used to transfer helpful genes into cells – gene therapy West Nile virus Influenza
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