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Cell Chemistry

Cell Chemistry. LPA 2013-2014 Week 1 Standard 2.1. Tuesday’s Objective. I will identify the function of the four major macromolecules. Bell work. Complete questions 1-7 on page 83. Reading Questions. What questions do you have as a result of your reading?. Review.

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Cell Chemistry

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  1. Cell Chemistry LPA 2013-2014 Week 1 Standard 2.1

  2. Tuesday’s Objective • I will identify the function of the four major macromolecules.

  3. Bell work • Complete questions 1-7 on page 83.

  4. Reading Questions • What questions do you have as a result of your reading?

  5. Review • Define the following terms: • Matter • Element • Atom • Chemical Compound • Chemical Reaction

  6. Vocabulary • Create vocabulary flashcards for the following terms: • Chemical Substance • Homogeneous • Organic Compound • Inorganic Compound • Covalent Bond • Ionic Bond

  7. Notes • A __________ ___________ is a material that has a definite chemical composition. • A chemical substance is ___________ if it has the ___________ chemical composition found __________ throughout the substance.

  8. Elements in Cells • The most abundant elements in cells are: • __________ • __________ • __________ • __________ • __________ • __________

  9. An Atom

  10. Bonds • Covalent bonds form between atoms when they __________ _____________ in order to become ________ (or fill their outer shell). • Ionic bonds form between atoms that are ______________ ___________. • Energy is __________ when bonds are formed; and __________ when bonds are broken.

  11. Organic vs. Inorganic • ____________ compounds contain mainly the elements ______ and ________. • ____________ compounds are without ____________.

  12. Carbon • Carbon is the major element in __________ compounds. • It is essential to all known _______ on Earth. • Carbon has an exceptional ability to ________ with a wide variety of other elements.

  13. Types of carbon compounds • Carbohydrates – contain C, H, O • Lipids – contain C, H, O • Proteins – contain C, H, O, N, S • Nucleic Acids – contain C, H, O, N, P • These compounds are the 4 _________ macromolecules.

  14. Carbohydrate Structure

  15. Lipid Structure

  16. Protein Structures

  17. Nucleic Acid Structure

  18. Unit Project • NO Unit Project • BUT……there will be a student designed lab activity that will require a report write up. (In a couple weeks.) • Student groups will design the lab in class. • Student groups will conduct the lab in class. • Students will record and analyze the data in class. • Students will write up the report at home. • Peer reviews of first draft in class • Final reports due 2/14/14

  19. Tuesday’s Objective • I will identify the function of the four major macromolecules.

  20. Homework • Read pages 80-92. • Complete questions 1-10 on page 92. (#7 is not a question)

  21. Wednesday Objective • I will identify the function of the four major macromolecules.

  22. Bell work

  23. Reading Questions • What questions do you have as a result of your reading?

  24. Quiz • C =NO communication except with the teacher. • H =Raise your hand and wait to speak. • A =Take the test. Answer every question. • M =Do not get out of your seat or into your bags. • P =Finish the test. When you finish, begin reading pages 93-98 in your notebook.

  25. Wednesday Objective • I will identify the function of the four major macromolecules.

  26. Homework • Read pages 93-98. • Complete questions 1-8 on page 98.

  27. Thursday Objective • I will explain how the properties of water contribute to maintenance of cells and living organisms.

  28. Bell work • Complete the “Wonderful Water” vocabulary worksheet.

  29. Reading Questions • What questions do you have as a result of your reading?

  30. Vocabulary • Create vocabulary flashcards for the following terms: • Polar molecule • Hydrogen bond • Cohesion • Adhesion • Solution • Solute • Solvent

  31. Notes • _____________ is essential to all known forms of life. • _______% of Earth’s surface is covered with ____________. • Why is freshwater not available in many parts of the world?

  32. Chemical properties of Water • Tasteless • Odorless • Colorless • transparent

  33. Chemical Structure of Water

  34. Chemical Structure of Water • Oxygen attracts electrons much more strongly than the two hydrogen atoms. • Oxygen has a slight negative bond. • Hydrogen has a slight positive bond. • A ___________ molecule is a molecule in which part of the molecule is __________ charged and part is ____________ charged.

  35. Sticky Water • _____________ - the tendency for water molecules to stick together. • _____________ - occurs when water molecules are attracted to other materials. • (droplets on a penny demo)

  36. Density of Ice and Water • Water is unique – the _________ form is less dense that the __________ form. • Icebergs • Life in frozen lakes & marinas

  37. Solutions • __________ - a homogeneous mixture composed of two or more substances. • __________ - the dissolved substance in a solution. • __________ - the substance in which the solute is dissolved

  38. The Universal Solvent • Water is the universal solvent because ______ _____________________________________. • Water is a strongly _______ solvent. • _______ ________ are better at dissolving polar solutes. • Many ____________ compounds and other important __________ are polar.

  39. Water & Life What are the functions of water in humans? • Humans are composed of about ____ % water (not including the water in body fat) • Water’s high heat capacity keeps ______ _________ at a consistent level.

  40. Water & Life cont’d • Water is able to __________ most biologically significant ___________. • Water is a key part of the blood and allows compounds to ____________ in the body. • Water provides ____________ for your moving parts.

  41. Thursday Objective • I will explain how the properties of water contribute to maintenance of cells and living organisms.

  42. Homework • Read pages 99-104. • Attend the Science Expo.

  43. Friday Objective • I will explain the role of enzymes in cell chemistry.

  44. Bell work • Complete questions 1-5 on page 104.

  45. Reading Questions • What questions do you have as a result of your reading?

  46. Vocabulary Review • Make sure you remember the definitions for the following terms from Middle School: • Chemical Reaction • Reactant • Products • Chemical Equation

  47. Vocabulary • Create vocabulary flashcards for the following terms: • Activation energy • Catalyst • Enzyme

  48. Chemical Equations CH4 + 2 O2 CO2 + 2 H2O

  49. Activation Energy • The amount of _________ needed to start a _____________ is the activation energy. • The amount of activation energy required depends on the __________ of the reaction and the __________ under which the reaction takes place.

  50. Rates of Chemical Reactions Factors that help ______ up chemical reactions: • The ____________ of the reactants • The ____________ of the environment • The ____________ of the environment

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