Biological Chemistry and Water
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| http://tolweb.org/tree/learn/concepts/whatisphylogeny.html |
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| http://www.concord.org/~btinker/molo/molo_concept_maps/macromolecules.html
Biology Weekly Learning Goals, Prompts & Links:
The student will analyze and recognize the different types chemical bonding
in cellular functions through laboratory experiments that illustrate
the fundamental differences. The different functions of macro-molecules,
photosynthesis, fermentation and the interconnections between phot0-respiration
will also be examined through diagrams, share analysis, tests, labs and quizzes.
M: It's a Wrap! Chemical Bonding Lab Summary,
Vander Waal Forces in Nature; Enzymes in
Biological Interactions
T: Water the Universal Solvent
W: Introduction to Macromolecules & Enzymes
Th: Macromolecules and The Tree of Life Project
F: Cellular Energy Interconnections between Respiration,
Photosynthesis, Fermentation.
Reading: Chapter 2: pg: 35-53, and additional reading prompts.
The Essential Questions:
How are ionic bonds and Van der Waals forces similar and how are they different?
What is a compound and how are they related to molecules?
Why do all isotopes of an element have the same chemical properties?
What is an ionic bond?
What is a covalent bond?
What is hydrogen bonding?
How does the structure of a water molecule explain why it is polar?
How is an acidic solution different from a basic solution?
What are the functions of each group of organic molecules?
What is the chemistry of carbon?
What are the three parts of a nucleotide?
How are proteins and carbohydrates similar, and how are they different?
What is a macromolecule?
Why are proteins considered polymers but lipids are not?
Important Links: (You may need to update Java for the interactive sites)
Tree of Life Project
States of Matter
Ionic, Covalent and Metallic Bonds
Chemical Kim making a simple Conductivity Meter
Osmosis Jones
http://viewpure.com/qKq3hOgC8YE
Van der Waals Forces in Nature http://news.sciencemag.org/2002/08/how-geckos-stick-der-waals Investigation Lab: Comparison of Bond Properties (www.catalystlearningcurricula.com) Reflection Question Q & A Experiment A: Geometric Crystal Structure 1. NaCl (salt) 2. NaCl (salt) 3. Refer to notes and text. 4. The greater the intermolecular attraction, the higher the melting point, vapor pressure and boiling points. 5. Both shapes represent each molecules unique arrangement of atoms. In NaCl, the ionic arrangement of salt molecules creates a structure similar to a six-sided dice, whereas the arrangement of carbon atoms creates a hexagonal shape. Experiment B: Hardness 1. NaCl 2. NaCl 3. Cleavage patterns vary due to the bond types within the molecule. Regular cleavage patterns are observed in molecules with high geometrical regularity, such as in ionic bonds. 4. N/A 5. Hardness of molecules is related to atomic bonding. Experiment C: Conductivity 1. NaCl 2. The molecules of the ionic solid are bonding with the partially positive and negative charges of distilled water. 3. The neutrally charged covalently bonded sugar molecules are not attracted to the polar solvent, and though some is dispersing into solution the majority remains a solid. 4. When there are free electrons present in solution the electrical current is greater. Experiment D: Melting Point Experiment E: Capillary Action Experiment F: Surface Tension Experiment G: Solvent Ability
Week 5 CHEMISTRY: Nomenclature and
Chemical Reactions
The student will differentiate the different types of chemical bonds and
assess their characteristics through chemical analysis. Other activities include, graphic organizers and concept maps where they will differentiate key characteristics, including nomenclature, and types.
M: It's a wrap! Ionic and Covalent Bonding Lab. Nomenclature of Acids and Bases
Introduction to Metallic Bonding. Reading opg. 407-408.
T: Describing Types of Reactions: Mini Carbonic Acid Lab
W: Reaction Types in Aqueous Solutions
Th: Solutions
F: Metallic Reactions and Aqueous Solutions Lab
Essential Questions
What types of evidence indicate that a chemical reaction has occurred?
What are the symbols used by chemists when writing chemical reactions?
What are the steps utilized to balance a chemical reaction?
What is the difference between acids and bases?
What is the difference between oxidation and reduction reactions?
Describe the importance of aqueous chemical reactions to all life?
What is the difference between double replacement reactions, acid-base reactions,
single-replacement reactions, combustion reactions, and decomposition reactions?
Important links: States of Matter
Chemical Reactions-An Introduction
Biosphere 2:
http://www.b2science.org/
Intermolecular Forces in Bonding http://www.wikipremed.com/mcat_course.php?code=0204000200000000 Balancing Chemical Equations http://phet.colorado.edu/en/simulation/balancing-chemical-equations Sodium Hydroxide and Sulfuric Acid: Balancing Chemical Equation http://viewpure.com/5S-1Gtlu1oU |
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