3 9/13—9/17 Daily Warm UpWhat is the basic type of microscope used to view cells and processes such as mitosis and meiosis?Compound Light MicroscopeList the two types of cells. One type of cell has two sub-groups, name them as well.ProkaryoticEukaryoticAnimalPlant
4 9/13-9/17 Daily Warm Up What is a cell? The basic structural and functional unit of all living organisms.Hypothesize the difference between eukaryotic and prokaryotic cells.Organelles separate the 2 from each other.
5 9/13-9/17 Daily Warm Up What are the 3 theories in the cell theory? 1. All living organisms are composed of 1 or more cells.2. Cells are the basic unit of structure in an organism.3. Cells can only arise from pre-existing cells.If you were trying to observe the water vacuoles in a plant cell, which microscope would you use?Compound Light
7 9/13-9/17 Daily Warm UpWhat is the theory that states that prokaryotic cells further developed eukaryotic cells?Endosymbiotic theoryWhat are the names of the two electron microscopes? (Give abbreviations)TEM-Transmission Electron MicroscopeSEM-Scanning Electron Microscope
8 Table of Contents Week Title on Assignment Page # 6 1. 9/13-9/17 Daily Warm Up- 8 stamps2. Chapter 7 Vocabulary- 136 points (153 if colored)3. Chapter 7 Section 1 Notes- 25T of C- 9Titles- 3Points on Assignment-169Total Points- 181
9 Chapter 7 Opening Activity Words you can use:AnimalsbacteriachloroplastsEukaryotesa large central vacuoleplantsplasma membraneprokaryotesAll cells have a:And are grouped into two broad categories:Which are mainly:Some contain yeast and algaeWhich contains unique structures such as:Cell walls
10 Cell Discovery & Theory Section 1Cell Discovery & Theory
11 Chapter 7 Opening Activity Words you can use:AnimalsbacteriachloroplastsEukaryotesa large central vacuoleplantsplasma membraneprokaryotesAll cells have a:Plasma membraneAnd are grouped into two broad categories:prokaryoteseukaryoticWhich are mainly:bacteriaplantsanimalsSome contain yeast and algaeWhich contains unique structures such as:Cell wallschloroplastsA large central vacuole
12 History of the Cell Theory A cell is the basic structural and functional unit of all living things.The first to observe cells was Robert Hooke, who made a simple microscope, and looked at a piece of cork.Cork= the dead cells of Oak barkLater, Anton van Leeuwenhoek advanced Hooke’s findings and developed an even better microscope called a light microscope.
15 The Cell TheoryObservations from Schleiden, Schwann & Virchow summarized the theory of the cell.1. All living organisms are composed of 1 or more cells.2. Cells are the basic unit of structure in an organism.3. Cells can only arise from pre-existing cells.
16 Microscope Technology Microscope technology paved the way to the development of the cell theory and the discovery of cells.As we continue to grow in technology, so do the details in the images we see of cells.As detail increases, so do the magnification and resolution on the microscope.
17 Compound Light Microscope MicroscopesCompound Light MicroscopeElectron MicroscopesGlass lensesUses visible light to produce a magnified imageUses 2 lenses that can magnify 10x, therefore the total magnification would be 100.Often dyes are used to see an imageLight limits the resolution of these imagesTransmission ElectronMagnet beamsCan magnify 500,000xSpecimen can be livingSliced thinScanning ElectronProduces a 3D imageBlack & White imageNon-livingStained w/heavy metals
21 CheckpointExplain how the development and improvement of microscopes changed the study of living organisms.With more sophisticated tools, scientists have been able to learn much more detail about the cell and its structures.Compare & Contrast a compound light microscope and an electron microscope.Light microscopes use visible light and glass lenses. Electron microscopes use beams of electrons and magnets, and can be used to view whole specimens.
22 Basic Cell TypesCells differ based on the function they perform for the organism.HOWEVER, all cells have at least one physical trait in common: their plasma membrane.The plasma membrane helps control what enters and leaves the cell.Cells have a variety of functions based on specific organelles found inside.Most cells have genetic material that provides instructions for making substances that the cell needs. The genetic material is copied to the daughter cells (offspring of the cell).There are two different types of cells:Eukaryotic & Prokaryotic
23 Differences b/w the 2 types of cells EukaryoticProkaryoticLargerContains membrane bound organellesContains a nucleusSmallerDoes not contain membrane bound organellesNo nucleus
24 Checkpoint Differentiate the plasma membrane and the organelles. The plasma membrane helps control what goes in and out of the cells. Organelles carry out specialized functions in the cell.
25 Origin of Cell Diversity According to the endosymbiotic theory:Prokaryotic cells lived within eukaryotic cells.Which means cells came from a simple prokaryotic cell composed of few organelle structures may have evolved further from the multi-cellular eukaryotic cell to have its own identity.
26 At the end of NOTES…Answer questions 1-7 (you DO NOT have to write out the question) on page 211.Make sure you create 4 questions on the left side of your notes.Write a summary for your notes…at least 5 sentences in length.
27 9/20-9/24 Daily Warm Up What is an example of a prokaryotic cell? BacteriaWhat are the differences between eukaryotic and prokaryotic cells.SizeNucleusOrganelles
28 9/20-9/24 Daily Warm UpDescribe how the plasma membrane helps maintain homeostasis in the cell.By controlling what enters & leaves the cell.Explain how the inside of a cell remains separate from its environment.The phospholipid bi-layer provides a barrier from the environment outside of the cell.
29 9/20-9/24 Daily Warm UpWhat do carbohydrates do in reference to the cell membrane?Recognize foreign pathogens & transmits chemical signals.(Without looking at the book or notes) List 5 organelles found in cells.NucleusRibosomesE.R.Golgi ApparatusMitochondria
30 9/20-9/24 Daily Warm UpWork on your story if you didn’t finish…
31 Note: The Plasma Membrane is the same as the cell membrane! Chapter 7 Section 2The Plasma MembraneNote: The Plasma Membrane is the same as the cell membrane!
32 Function of the Plasma Membrane The plasma membrane is responsible for maintaining the organisms internal environment through selective permeability.This is called homeostasis.
33 Function of the Plasma Membrane The plasma membrane’s function is to allow waste and other products to leave the cell and nutrients to enter, & maintains the proper internal environment.Selective permeability is the property of the plasma membrane that allows some substances to pass through while keeping others out.Example: Think of a fish net.
34 Structure of the Plasma Membrane Most molecules in the plasma membrane are lipids.Lipids are large molecules composed of glycerol and 3 fatty acids.A phospholipid forms when a phosphate group replaces a fatty acid.A phospholipid bilayer contains two layers of phospholipids arranged tail to tail.The arrangement is present so that the plasma membrane can exist in a watery environment.
36 The phospholipid bilayer The bilayer structure is critical for the formation and function of the plasma membrane.Polar Head: Phosphate GroupAttracted to H2OHydrophilicPNon-polar Tail:Fatty acid chainsRepel H2OHydrophobic
37 The phospholipid bilayer The 2 layers make a sandwich with the fatty acid tails forming the interior of the p.m. and the phospholipid heads facing the watery environments found inside and outside the cell.The phospholipids are arranged in such a way that the polar heads can be closest to the water molecules and the nonpolar tails can be farthest away from water molecules.The plasma membrane can separate the environment inside the cell from the environment outside the cell.
38 Other components of the plasma membrane Major components:Cholesterol, proteins and carbohydrates.
39 ProteinsFound on the outer surface of the p.m. proteins called receptors transmit signals to the inside of the cell.Proteins on the inner surface anchor the p.m. to the cells internal support structure, giving it shape.Carrier proteins are located throughout the cell to move substances and/or waste materials.
40 CholesterolCholesterol helps to prevent the fatty-acid tails of the phospholipid bilayer from sticking together, which allows for fluidity.Avoiding a high cholesterol diet is recommended because just enough is needed for cellular function.If you have too much your body’s cells have to compensate.
41 CarbohydratesStick to proteins and help cells identify chemical signals.Example: carbs might help disease-fighting cells recognize and attack a potential harmful cell.
42 Fluid Mosaic ModelThe phospholipids in the bilayer create a “sea” in which other molecules can float.Example: like floating apples in a barrel of water.
44 Check PointIdentify the molecules in the plasma membrane that provide basic membrane structure, cell identity, and membrane fluidity.Basic Membrane Structure: PhospholipidsCell Identity: Proteins & CarbohydratesMembrane Fluidity: CholesterolA __________ is the basic structure molecule making up the plasma membrane.PhospholipidThe ___________ is the component that surrounds all cells.Plasma Membrane
45 Check Point___________ is the property that allows only some substances in and out of the cell.Selective PermeabilityHypothesize how a cell would be affected if it lost the ability to be selective in its permeability.Couldn’t maintain homeostasis & it would die.What might happen to a cell if it no longer could produce cholesterol?It would become less fluid.
46 Chapter 7 Section 2 NotesMake sure you have the checkpoint questions in your notes…they could be potential quiz & test questions.Make sure you have 4 ?’s on the left hand side of your Cornell Notes.Write a summary—at least 5 sentences. The more the merrier…you have a lot information in this section of notes.Work on Chapter 7 Section 2 WorksheetBoth are DUE TOMORROW!
51 Plasma MembraneFunction: A flexible boundary that controls the movement of substances in and out of the cell.Key word: Selective permeability.Cell Type: All cellsAnalogy: __________Gate
52 NucleusFunction: The nucleus contains the cells DNA, stores information used to make proteinsFor cell growth, function & reproduction.Key Word: Control CenterCell Type: All Eukaryotic CellsAnalogy: ____________Headquarters (City Hall)
53 Golgi ApparatusFunction: It’s a flattened stack of membranes that modifies, sorts & packages proteins into sacs.Key Word: Packing & SortingCell Type: All Eukaryotic CellsAnalogy: ____________Post Office
54 Endoplasmic Reticulum Function: It contains folded sacs & interconnected channels serves as a site for protein & lipid synthesis.Key Word: Conveyor BeltCell Type: All Eukaryotic CellsAnalogy: ____________Factory/Freeway
55 ChloroplastsFunction: Capture light energy & convert it into chemical energy through photosynthesis.Key Word: Producer of energyCell Type: Euk. Plant cellAnalogy: ____________Power Plant (Recycling center)
56 MitochondriaFunction: It converts fuel particles (mainly sugar) into usable energy.Key Word: PowerhouseCell Type: All Eukaryotic CellsAnalogy: ____________Energy Generator (Nuclear Powerplant)
57 LysosomesFunction: Processes enzymes that digest excess or worn out organelles or food particles.Key Word: Gets rid of wasteCell Type: Euk. Animal CellsAnalogy: ____________Disposal Service
58 Cell City: 1. Hydraulic Dam (Mitochondria) 2. Special Carts (Ribosomes)3. Town Hall (Nucleus)4. Small Shops (E.R.)5. Postal Office (G.A)6. Widget (Protein)7. Fence (Cell Membrane)8. Scrap yard (Lysosomes)9. Carpenter’s Union (Nucleolus)
59 Cell Analogy Story: Using the terms: Mitochondria, nucleus, endoplasmic reticulum, Golgi apparatus, protein, cell membrane, and lysosomes.Create a story about a school (preferably OHHS).At a local high school called Oak Hills, the main export and production product are students who exemplify integrity & academic excellence…Identify what each organelle is within your story:Students=Protein
60 Table of Contents Your Name Week Title on Assignment Page # 7 1. 9/20-9/24 Daily Warm Up- 62. Chapter 7 Section 1 Review Worksheet- 53. Chapter 7 Section 2 Notes- 254. Chapter 7 Section 2 Review Worksheet-205. Chapter 7 Section 3 Notes (Cellular Organelles/Cell City Analogy) & Cell Story Analogy-256. Chapter 7 Section 3 Review Worksheet-17Your Name
61 Table of Contents Your Name Week Title on Assignment Page # 7 1. 9/20-9/24 Daily Warm Up- 62. Chapter 7 Section 1 Review Worksheet- 53. Chapter 7 Section 2 Notes- 254. Chapter 7 Section 2 Review Worksheet-205. Chapter 7 Section 3 Notes (Cellular Organelles/Cell City Analogy) & Cell Story Analogy-256. Chapter 7 Section 3 Review Worksheet-17Your NameCheck their table of contents, make sure all 6 assignments are in order in the notebook. If they have week 7 for all assignments, the 7 assignments and pages #’s for each assignment it is worth 18 pts.
62 Table of Contents Your Name Week Title on Assignment Page # 7 1. 9/20-9/24 Daily Warm Up- 62. Chapter 7 Section 1 Review Worksheet- 53. Chapter 7 Section 2 Notes- 254. Chapter 7 Section 2 Review Worksheet-205. Chapter 7 Section 3 Notes (Cellular Organelles/Cell City Analogy) & Cell Story Analogy-256. Chapter 7 Section 3 Review Worksheet-17Your NameCheck to see if there are titles for all 6 assignments, if there is, 6pts possible.
63 Table of Contents Your Name Week Title on Assignment Page # 7 1. 9/20-9/24 Daily Warm Up- 62. Chapter 7 Section 1 Review Worksheet- 53. Chapter 7 Section 2 Notes- 254. Chapter 7 Section 2 Review Worksheet-205. Chapter 7 Section 3 Notes (Cellular Organelles/Cell City Analogy) & Cell Story Analogy-256. Chapter 7 Section 3 Review Worksheet-17Your NameCount the points they received on each assignment. There is a max of 98 pts.
64 Table of Contents Your Name Week Title on Assignment Page # 7 1. 9/20-9/24 Daily Warm Up- 62. Chapter 7 Section 1 Review Worksheet- 53. Chapter 7 Section 2 Notes- 254. Chapter 7 Section 2 Review Worksheet-205. Chapter 7 Section 3 Notes (Cellular Organelles/Cell City Analogy) & Cell Story Analogy-256. Chapter 7 Section 3 Review Worksheet-17Your NamePoints Possible for this notebook were 122.
65 Week 8 Table of Contents Week Title on Assignment Page # 8 1. 9/27-10/1 Daily Warm Up2. The “Ultimate” Cell (Summary of Organelles, Picture & Steps of Protein Synthesis3. Chapter 7 Section 4 Notes
66 Summary of Cell Structures (Organelles) ProkaryotesEukaryotesAnimals CellPlant Cell
67 Summary of Cell Structures (use page 192, 199) ProkaryotesEukaryotesAnimals CellPlant CellWith the following organelles: put the organelle if it can be found in that specific cell. *Note: some cells will have the same structures (organelles)Cell Wall, Centrioles, Chloroplast, Cilia, Cytoskeleton, Endoplasmic Reticulum, Flagella, Golgi Apparatus, Lysosome, Mitochondria, Nucleus, Plasma Membrane, Ribosomes, VacuoleIf all 3 cells have the organelle circle them red.If both Plant & Animal cells have that organelle circle them blue.
68 Summary of Cell Structures ProkaryotesEukaryotesAnimals CellPlant CellCell wallCentriolesCiliaFlagellaPlasma MembraneRibosomesCytoskeletonEndoplasmic ReticulumGolgi ApparatusLysosomeMitochondriaNucleusVacuoleCell WallChloroplast*Red: its found in all 3 cells*Blue: comparing organelles in animal & plant cells.
69 The “Ultimate” Cell For the organelles circle them as follows: Using your Summary of Cell Structures chart, draw the “ultimate” cell.Include all the organelles:Cell WallCentriolesChloroplastsCiliaCytoskeletonEndoplasmic ReticulumFlagellaGolgi ApparatusLysosomeMitochondriaNucleusPlasma MembraneRibosomesVacuoleFor the organelles circle them as follows:Animal—bluePlant—greenProkaryote—redAll cells must be colored and labeled to receive full credit!This is an in-class project…so you need to be working!Use pages 192, 199
70 9/27-10/1 Daily Warm-Up (Monday) What is the function of the chloroplast and the mitochondria? How do these two organelles differ from each other?They both produce energyChloroplasts exist in plant cells, whereas mitochondria exist in both plant & animal cells.List some of the essential processes the cell goes through.Organelles perform protein synthesis, energy transformation, digestion of food, excretion of wastes, and cell division.FYI on PowerSchool1.Go to2. Click on Power School3. Under Log in: Their User name is their ID number4. Their password is their birth date MD19xx (NO leading 0's in the month or day, so August 7, 1993 would be5. They then click submit and they should be in. If they have any questions or problems have them come by counseling.
71 9/27-10/1 Daily Warm Up (Tuesday) Which organelle (structure) is found in both plant & animal cells can be a site for temporary storage?VacuoleWhat two structures aid in the movement of cells and help the cell feed?CiliaFlagella
72 Wednesday Warm Up What structure creates a protein? (Page 199) RibosomesWhat is found in the cytoskeleton? (2 things) Page 191MicrofilamentsMicrotubules
73 Thursday Warm UpBased off the definition which organelle (listed on page 199) is always found in pairs?CentriolesBased off this analogy which organelle (listed on page 199) resembles bones?Cytoskeleton
74 Friday Warm UpWhich organelles function is similar to a conveyor belt?E.R.Which organelles function is similar to a closet?Vacuole
76 Protein Synthesis1. Begins in nucleus with the genetic information (DNA).2. DNA is copied & transferred to another genetic molecule RNA.3. RNA & Ribosomes leave the nucleus through the pores of the nuclear membrane.4. Together RNA & Ribosomes manufacture proteins.Proteins made on the rough ER could become part of the plasma membrane, released from the cell or be transported to other organelles.Proteins made on the smooth ER are sent to the Golgi Apparatus.
77 Peroxisome Site where toxic compounds are neutralized. pH neutralizer (keeps it a 7)Animal Cell
81 DiffusionSubstances diffuse from areas of high concentration to low concentration.No energy due to the fact that the particles are already moving.
82 Diffusion (Dynamic Equilibrium) Dynamic Equilibrium occurs when particles continue to move randomly, but no further change in concentration will occur.3 Main factors affect the rate of diffusion:1. Concentration2. Temperature3. PressureAs you increase these three things, so does the process of diffusion.
83 Diffusion across the plasma membrane Water can diffuse across the plasma membrane, but most other substances cannot.Facilitated diffusion.This uses transport proteins to move other ions and small molecules across the plasma membrane.Channel proteinsSubstances move into the cell through a water-filled transport protein called a channel protein that opens and closes to allow the substance to diffuse through the plasma membrane.Carrier proteinsThese proteins helps substances diffuse across the plasma membrane
84 Osmosis: Diffusion of Water The diffusion of water across a selectively permeable membrane is called osmosis.Osmosis is important because it maintains the homeostasis of the cell.
85 How Osmosis Works Solution: contains solute and solvent. Solute: substanceSolvent: liquid solutionThe concentration of a solution decreases when the amount of solvent increases.Water molecules diffuse toward the side with the greater solute concentration.The water continues to diffuse until dynamic equilibrium takes place.
86 Cells in Isotonic Solutions A cell in an isotonic solution has the same concentration of water and solutes—ions, sugars, proteins—in its cytoplasm as the fluid around it.Iso- comes from the Greek word equal.Water enters & leaves the cell at the same rate.
87 Cells in Hypotonic Solutions A hypotonic solution has a lower concentration of solute (more solvent, water) than the cell’s cytoplasm.Hypo comes from the Greek word under.Water diffuses into the cell causing the membrane of the cell to swell, which could possibly cause the cell to burst.
88 Cells in Hypertonic Solutions Hypertonic solutions occur when the concentration of the solute outside the cell is higher than the inside (less water outside the cell).Hyper comes from the Greek word above.Water diffuses out of the cell and cells shrivel because of the decreased pressure.
89 Active TransportSometimes substances move from a region of lower concentration to a region of high concentration against the passive movement of high to low.Some active transport pumps move one type of substances in one direction, while others move 2 substances in the same or opposite directions.
90 Transport of Large Particles Some substances that are too large to move through the plasma membrane go through a different process.Endocytosis:Substances are taken into the cellExocytosis:Substances are expelled or secreted out from the cell
91 Week 8 NB CheckTable of Contents- 12 (1 point for what’s displayed below)Titles on Assignments- 4Points on Assignment- No more than 122.Possible Points 138.WeekTitle on AssignmentPage #81. 9/27-10/1 Daily Warm-Ups- 102. The “Ultimate” Cell- (3 Column Chart, Picture & Steps of Protein Synthesis)- 703. Chapter 7 Section 4 Notes- 254. Chapter 7 Section 4 Review Worksheet- 17