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10/29 & 10/30 - 7 th Grade Agenda

Learn about diffusion and osmosis, study organic compounds in cells, and understand the difference between passive and active transport. Collect homework and prepare for upcoming tests.

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10/29 & 10/30 - 7 th Grade Agenda

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  1. 10/29 & 10/30 - 7th Grade Agenda Learning Objective: Learn about diffusion and osmosis Collect HW: Reading & Note Taking p. 67 Chap 3 Study Guide Video: Test Your Brain Class Reading p.102 – 107 HW: Reading Guide Chap 3 Section 4 Reminder Chap 3 Test on 11/3 & 11/4 Reminder: HW: Cell Model due 11/5 & 11/6 (40 Points)

  2. Reflection • Write 3 facts about Chemical compounds in your body.

  3. What are cells and organelles made out of? • Chemicals

  4. What are chemicals made out of? ounds • Comp_________ • Can you give me examples of compounds? • Water, Sugar, Alcohol, Carbon Dioxide

  5. Compound • When two or more elements comb_____ chemically, they form a compound ine

  6. Elements • An element is any substance that cannot be br_______ down into a simpler substance. • Can you give me an example of an element? • Gold, Hydrogen, Oxygen, Carbon, Nitrogen, Iron oken

  7. Compound • Carbohydrates, lipids, proteins and nucleic acids are important groups of organic com_____________ in living things pounds

  8. Organic Compounds vs Inorganic Compounds • What is the difference between organic and inorganic compounds? • Organic compounds have the element carbon (and Hydrogen).

  9. Carbohydrates • A carbohydrate is an en______ rich organic compound made up of car______, sugar and oxygen. • Carbohydrates are used to fuel our body • Sug____ and starches are examples of carbohydrates. ergy bon ars

  10. Lipids = Fat rgy • Lipids are ene______ rich organic compounds made of car______, hydrogen and oxygen • Lipids are used by our ner____ cells • Fats, oils and waxes are all lipids bon ve

  11. Proteins • Proteins are large organic molecules made of car_____, hydrogen, oxygen, nitrogen. • Proteins are used to build mus_____, skin and bone cells • Food that are high in protein include me___, eggs, fi_____, nuts and beans bon cle at sh

  12. Enzymes • An enzyme is a type of protein that speeds up a che______ reaction in a living thing. • For example, enzymes in your saliva speed up the dige______ of food. mical stion

  13. Nucleic Acids • Nucleic acids contain the inst________ that cells need to carry out all the functions of life. • DNA and RNA are Nucleic Acids ructions

  14. What are the organic compounds found in cells? • Water : 70% • Pro______ :15 % (Building Block) • Lip_____ (Fat) :10% (Long term Energy) • Carboh______ : 4% (Short term Energy) • Nuc______ Acid : 1% (DNA & RNA) tein ids ydrates leic

  15. Diffusion • Diffusion is the main method by which small molecules m___ across the cell mem______. ove brane

  16. What causes diffusion? • Collisions of molecules

  17. Osmosis • Osmosis is the diffusion of wa_____ molecules through a selectively permeable mem_____ ter brane

  18. Passive Transport ement • The mov________ of dissolved materials through a cell membrane with___ using cellular energy • Diffusion and osmosis are examples of Passive Transport out

  19. Active Transport • The movement of materials through a cell membrane using cellular ene____ rgy

  20. What is the difference between Passive Transport and Active Transport Active Transport Passive Transport Don’t use energy Use energy

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