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Transcript
Classroom Teacher Preparation Anatomy/Physiology 1: Cell City Please use the following to prepare for the next SfS lesson. Description: By competing to construct a model of a cell, students learn about its components and their functions. The analogy of the cell as a city is used to make the information more understandable to students learning about cells for the first time. Lesson Objectives – SWBAT (“Students Will Be Able To…”): th 4 -8 th • • • • Understand what a cell is and that cells function similarly in all living organisms Understand that in multicellular animals, cells make up tissues and tissues make up more complex structures called organs Explain cell organelles different jobs and how they work together using an analogy of a city Explain the characteristics that distinguish plant cells from animal cells, including chloroplasts and cell walls Preparation: This module provides a broad overview of the topic, and is best used as an introduction to the subject. Vocabulary: These terms will be defined in lesson: • Cell - the smallest structural and functional unit of an organism. • Cell membrane - the semipermeable membrane surrounding the cytoplasm of a cell. • Organelle - a specialized structure within a living cell. • Cell wall - a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. • Cytoplasm - the material or protoplasm within a living cell, excluding the nucleus. • Cytoskeleton - a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence. • Chloroplasts - an organelle found in plants that contains chlorophyll and in which photosynthesis takes place. • Endoplasmic reticulum - an organelle within the cytoplasm of a eukaryotic cell. It usually has ribosomes attached and is involved in protein and lipid synthesis. • Golgi apparatus - an organelle made of folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport. • Lysosome - an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane. • Mitochondrion - an organelle found in large numbers in most eukaryotic cells, in which the biochemical processes of respiration and energy production occur. • Nucleus - a dense organelle present in most eukaryotic cells containing the genetic material. • Ribosome - a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells. Ribosomes bind messenger RNA and transfer RNA to synthesize polypeptides and proteins. • Vacuole - an organelle enclosed by a membrane and typically containing water or fluid. Science from Scientists 617-314-7773 • [email protected] • sciencefromscientists.org Copyright © 2014 Science from Scientists Page 1 Room Set Up for Activities: Students will work in groups of 2-5 at their desks or tables to complete the cell modeling activity. Safety: There are no safety concerns for this lesson. Related Modules: This lesson may be taught as part of a sequence or group of related modules on either Cells or Heredity. Other modules in these sequences include: Anatomy/Physiology 2: Mitosis - This module teaches the basics of mitosis using plant root tips. Students learn to identify cells in the different stages of mitosis, as well as how to use a compound light microscope and (for classes with ample time) prepare a wet-mount slide. Anatomy/Physiology 3: DNA is Everywhere - This lesson covers some basics of the role of DNA before students extract a visible sample of the molecule of life from food (strawberries, bananas, or peas). Anatomy/Physiology 6: Blood Composition and Compatibility - This is an introductory lesson detailing the components of blood and highlighting the process and importance of blood typing. The lesson starts with an introduction to the cells and fluids making up our blood, followed by a simulated blood typing activity. For other module sequences and groups, look here: www.sciencefromscientists.org/sequences Standards Covered: Please click the following link to our website to review the standards covered by this lesson, listed by state: http://www.sciencefromscientists.org/standards/ Lessons are matched to both national NGSS and local state standards. Classroom Post and Activities: A link to the Follow Up Student activity can be found in the Classroom Post on our website at sciencefromscientists.org/cohorts. Use the name of your school/cohort and password to log in. Students can explore virtual cells and learn about the many organelles through an online game. Additional Resources: WGBH Videos and Activities: The PBS educational site is a great, free resource for educators but you must create an account to use the materials. The first time you log in to the PBS Learning Media website you will be asked to create an account and provide an email and password. Once you have logged in, select “keep me logged in” to avoid having to repeat the process. • Organelles in the Cytoplasm Video (6.06): http://mass.pbslearningmedia.org/resource/tdc02.sci.life.cell.organelles/organelles-in-the-cytoplasm/ Other Activities: • Interactive Cell Explorer: http://www.exploratorium.edu/traits/cell_explorer.html • Cells Alive Interactive: http://cellsalive.com/cells/cell_model.htm • Cell Labeling Interactive: http://scratch.mit.edu/projects/1884710/ Science from Scientists 617-314-7773 • [email protected] • sciencefromscientists.org Copyright © 2014 Science from Scientists Page 2