SOL PACKET Chapter 3 NAME _________________________________ DATE ______________ BLOCK _____ Page 1 LS 2c: Describe and sequence the major points in the development of the cell theory. Explanation The cell theory: 1. Cells are the basic unit of life. 2. All living things are made of cells. 3. All cells come from preexisting cells. The important scientists, in order: Hooke, van Leeuwenhoek, Schlieden, Schwann, Virchow Summary Hooke: The cell is the basic unit of life. Coined the term cells (cellulae – rooms in latin) – looked at cork. Van Leeuwenhoek: improved upon the microscope and was able to see much smaller things. Studied tooth plaque and pond scum and was the first to find bacteria and protists. Schlieden: all plants are composed of cells Schwann: all animals are composed of cells Virchow: all cells come from pre-existing cells. Lived at the time of Louis Pasteur who disproved “spontaneous generation.” The work from all these scientists over the course of 200 years combined to form the three parts of the current cell theory! Standard Check! 1. Re-write each part of the cell theory in your own words, then illustrate each component of the cell theory by drawing a picture or cartoon. a. b. c. 2. Create a timeline with all the scientists discussed. Include at least 5 other events from history during that time (between 16551855). Page 2 LS 3a: I will be able to differentiate between unicellular organisms and multicellular organisms (prokaryotic and eukaryotic) Explanation Example Prokaryotic PRO-NO No nucleus (No nucleus) Circular DNA Eukaryotic EU-TRUE (true nucleus) Ribosomes Can have cell walls Living thing Prokaryotic No membranebound organelles Has DNA Grows and responds Homeostasis made of one or more cells Nucleus Linear DNA Eukaryotic Membrane-bound organelles Standard Check! 1. 2. 3. 4. If a unicellular organism has a cell wall, ribosomes, and circular DNA, is it prokaryotic or eukaryotic? If a unicellular organism has a cell wall, ribosomes, and linear DNA in a nucleus, is it prokaryotic or eukaryotic? E. coli Unicellular If an organism has a cell membrane and an organelle called a chloroplast, is it prokaryotic or eukaryotic? organism List 2 multicellular organisms a. _____________________________________________________________________________________________ b. _____________________________________________________________________________________________ 5. List 2 unicellular organisms Euglena (a photosynthetic protist) a. _____________________________________________________________________________________________ b. _____________________________________________________________________________________________ http://biodidac.bio.uottawa.ca/ftp/BIODIDAC/PR cells. Multi-cellular 6. Using the Venn diagram above, write a paragraph comparing and contrasting prokaryotic and eukaryoticOTISTA/MASTIGOPH/DIAGBW/PROT001B.GIF ____________________________________________________________________________________________________________ organism ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ Page 3 LS 2a: Describe the structure and function of the cell membrane, cytoplasm, nucleus, cell wall, vacuole, mitochondria, endoplasmic reticulum, and chloroplast Explanation Nucleus – contains the cell’s DNA and is the control center of the cell. Ribosomes – the site where amino acids are hooked together to make proteins. Endoplasmic Reticulum – makes lipids, breaks down drugs and other substances, packages up proteins for release from the cell. Mitochondria – break down food molecules to make ATP Example Chloroplasts – make food using the energy of sunlight. Golgi Complex– processes and transports materials out of the cell. Vacuole – stores water and other materials. Lysosomes – digest food particles wastes, cell parts, and foreign invaders. Standard Check! 1. Color each organelle: a. cell membrane (pink), cytoplasm (yellow), nucleus(purple), cell wall (gray), vacuole (blue), mitochondria (red), endoplasmic reticulum (orange), chloroplast (green) 2. If a cell was a piece of pizza, the cell membrane could be the crust. The cell wall might be the gluten in the crust since it provides structure and support to the cell membrane. What would be your: a. Nucleus? _____________________________ Why? ___________________________________________________________________ b. Mitochondrion? ______________________ Why? ___________________________________________________________________ c. Endoplasmic Reticulum? ___________________ Why? ___________________________________________________________________ d. Cytoplasm? _____________________________ Why? ___________________________________________________________________ e. Vacuole? _____________________________ Why? ___________________________________________________________________ f. Chloroplast? __________________________ Why? ___________________________________________________________________ Page 4 LS 2b: Distinguish plant from animal cells based on structure. Explanation Example vesicle centriole Standard Check! 1. Color each organelle: a. cell membrane (pink), cytoplasm (yellow), nucleus(purple), cell wall (gray), vacuole (blue), mitochondria (red), endoplasmic reticulum (orange), chloroplast (green) 2. Complete the Venn diagram below using organelles in chart above Plants Animals Page 5 LS 3a: Organisms have a specific order of organization: Cells, tissues, organs, organ systems Explanation Example Cell o the basic unit of life Tissue o a group of cells that work together as a team to perform a specific job. Organ o 2 or more tissues that work together as a team to perform a specific job. Organ System o Organs that work together as a team to perform a specific job. Organism o Anything that can live on its own. Heart tissue Organism Organ System Organ Heart (organ) Circulatory System (organ system) Tissue Cell Standard Check! 1. Analogy: cell is to tissue as ________________ is to organism. 2. Analogy: organ system is to organ as ________________ is to tissue. 3. Pick a type of cell. Draw the cell. Draw the tissue. Draw the organ. Draw the organ system. Draw the organism. 4. Pick a type of organism. Draw the organism. Draw the organ system. Draw the organ. Draw the tissue. Draw the cell. Organism