Science Exam 2 Review, 2008

 

Hierarchy of Organization
Water Science, General characteristics and molecular structure of water

Carbohydrates

         General characteristics, Functions in our bodies

         Monosaccharides, glucose, fructose

         Disaccharides, sucrose, lactose

         Polysaccharides, starch, glycogen, cellulose, chitin

         Sugar Identification Lab (with Benedict's soln. + IKI)

Lipids

General characteristics, Functions in our bodies (camel humps, hummingbird energy storage)

Structure of cell membranes, phospholipids, cholesterol, hydrophobic-phillic
          Saturated and unsaturated fatty acids
          Stress Factors of Biological Membranes lab

Extraction of Fat from Foods

Proteins

General characteristics, Functions in our bodies (8)
          Amino Acids-essential, non-essential, backbone structure, peptide bond formation

4 Levels of protein size and complexity

Factors affecting the rate of Catalase activity lab

Nucleic Acids

General characteristics, structure, Functions in our bodies

How DNA is related to proteins (protein synthesis)

Differences between RNA and DNA
          Protein  Synthesis, transcription/translation

Extraction of DNA from wheat germ lab demo.

Nutrition

Calories, food pyramid, health considerations

Grocery Store Science (Von’s), Peer Review

Importance of Vitamins
Vitamin C Determination by Iodine Titration, Lab #12
Frontline video study sheet, Fat

Diffusion and Osmosis

A practical understanding of the movement of water (and other) molecules through a semipermeable membrane, examples

Factors Affecting the Rate of Diffusion lab

How a cell (and cell nucleus) divides
         What is a chromosome?

Mitosis

Meiosis

Human chromosomes (22 autosomes, 1 sex chromosome), sex determination

Mendelian Genetics

Simple Punnett Squares and genetic probability
Blood types and inheritance

Review weekly quiz material (metric mass, length, and volume conversions)

Reading assignments and videos
    Frontline Fat video & study questions
    NYTimes, Meat Guzzlers
    Fastfood Nation, Eric Schlosser
    The Size & Complexity of Proteins, I Asimov