Presentation on theme: "3.1 Prokaryotic vs. Eukaryotic Cells"— Presentation transcript:
1 3.1 Prokaryotic vs. Eukaryotic Cells 2.1 Atoms, Ions, and MoleculesSponge: Set up Cornell Notes on pg. 25 Topic: 3.1 Prokaryotic vs. Eukaryotic Cells Essential Question: Describe the difference between Eukaryotic and Prokaryotic cells. Don’t forget to add it to your T.O.Contents!Describe the difference between Eukaryotic and Prokaryotic CellsKey Concept: Cells are the basic unit of life
2 What do these “cells” have in common? On the top of pg. 24:What do you think about when you hear the word “cell”? (Think of more than one type)What do these “cells” have in common?
3 These are some things that you may think of when you think of a cell: Cell phone jail cell monk’s cell cellThey have/are: structure, small, things inside, matter, mass, made of atoms, used by humans…
4 Early studies led to the development of the cell theory Main IdeasEarly studies led to the development of the cell theoryProkaryotic cells lack a nucleus and most internal structures of eukaryotic cells.
5 KEY CONCEPT Cells are the Basic unit of life. Macrophages- play an important role in your immune system- take in a digest foreign materials (red= bacteria)
6 Objective1c. Students know how prokaryotic cells, eukaryotic cells (including those from plants and animals), and viruses differ in complexity and general structure.
7 The cell theory grew out of the work of many scientists and improvements in the microscope. Many scientists contributed to the cell theory.Concluded that ALL living things are made of cellsProposed that all cells come from other cellsFirst to identify cells and named themMade better lenses for microscopesFirst to note that plants are made of cells
8 Robert HookeIn 1665 he used the three-lens compound microscope to examine thin slices of corkHe observed that cork is made of tiny, hallow compartmentsThese compartments reminded Hooke of small roomsfound in monasteries (where monks live), so henamed them cells.
9 More was learned about cells as microscopes improved.
11 How does the size of a cell in a blue whale compare to the size of the cell in a tadpole?
12 How does the size of a cell in a blue whale compare to the size of the cell in a tadpole? A: Most cells in a whale are the same size as in a tadpole! So what makes a blue whale so much bigger?A whale has far more cells.
13 The Cell theory has three principles. 1. All organisms are made of cells.
14 2. All existing cells are produced by other living cells.
16 One of the 3 principles of cell theory is that ALL existing cells are produced by other existing cells. Apply this principle to a cut on your arm.(Explain what is happening throughout the healing process)
17 Messages are sent to skin cells to replicate AnswerOne of the 3 principles of cell theory is that ALL existing cells are produced by other existing cells. Apply this principle to a cut on your arm.You get a cutYou start to bleedYou form a scabMessages are sent to skin cells to replicateSkin cells replicate through mitosisNew skin cells are createdScab falls offYou are healed!
19 All cells share certain characteristics: Cells tend to be microscopic. Bacterium(colored SEM; magnification 8800x)
20 All cells share certain characteristics: Cells tend to be microscopic. All cells are enclosed by a membrane.cell membraneBacterium(colored SEM; magnification 8800x)
21 All cells share certain characteristics Cells tend to be microscopic. All cells are enclosed by a membrane.All cells are filled with cytoplasm.cell membraneBacterium(colored SEM; magnification 8800x)cytoplasm
22 Draw and label picture on top of p. 24 There are two cell types: eukaryotic cells and prokaryotic cells.Eukaryotic cells have a nucleus.The nucleus holds theDNAHave membrane-boundorganellesMay be multi-cellularor single-celledorganismsnucleusorganellescell membraneDraw and label picture on top of p. 24
23 Organelles: structures that are specialized to perform distinct processes within a cell. The nucleus is usually the largest and most visible organelle.
24 Things that have Eukaryotic Cells: PLANTSANIMALSFUNGI
25 Cytoplasm: is a jellylike substance that contains dissolved molecular building blocks- such as proteins, nucleic acids, minerals, and ionsBacterium(colored SEM; magnification 8800x)
26 Draw and label picture on top of p. 24 Prokaryotic cells do not have a nucleus.do not have membrane-bound organellesDNA is in the cytoplasmAll are microscopic, single-celled organismscell membranecytoplasmDraw and label picture on top of p. 24
27 Things that have prokaryotic cells ArchaeaBacteria
28 3.1 Prokaryotic/Eukaryotic/Virus Video Notes On pg. 26:Title your paperTitle of videos:Intro to cells #1Intro to cells #2What is a cell?BacteriaThe littlest AssassinsHow viruses work3.1 Prokaryotic/Eukaryotic/Virus Video Notes2.1 Atoms, Ions, and MoleculesIntro to cells # 1:Intro to cells #2:What is a cell?:Bacteria:The littlest Assassins:How Viruses Work:Leave room for at least 3 bullets each!!!!Add to T.O.Contents
29 Draw and label picture on top of p. 24 VirusesVirus- An infective agent that typically consists of a DNA or RNA strand in a protein coat.multiply only within the living cells of a hostAntibiotics will not work on themVaccines prevent themProtein CoatEX: Herpes virusInfluenzaChickenpoxEbola virusDraw and label picture on top of p. 24
30 Movies about VirusesI am Legend28 weeks laterThe Stand (book)Osmosis JonesThe Happening
31 On the bottom of pg. 24:Draw a double-bubble map comparing and contrasting Eukaryotic and Prokaryotic cells
32 Cells tend to be microscopic No nucleus Has a nucleus All are produced by other cellsAlwayssinglecelledProkaryotic cellsAll cells are enclosed by a membraneEukaryotic cellsBasic unit of lifeNo membrane-bound organellesHas membrane-bound organellesAll cells are filled with cytoplasm.
33 HomeworkIn the middle section of pg. 24:Draw a tree map classifying Prokaryotic cells, Eukaryotic cells, and VirusesCells and VirusesProkaryoticEukaryoticViruses
34 Draw a tree map classifying Prokaryotic cells, Eukaryotic cells, and Viruses NucleusDNA in protein CoatNo nucleusOrganellesNo organellesNeeds a hostSingle-cellularMulti-cellularAntibiotics do not work on themDNA in cytoplasmAnd Single-cellularDNA in nucleusVaccines prevent
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