Assessment #1 Quarterly Review Sheet
Scientific Method
1. DISTINGUISH between a dependent variable and an independent variable (page 9, Chapter 1 Notes).
Dependent variable:
________________________________________________________________________ ________________________________________________________________________ Independent variable:
________________________________________________________________________ ________________________________________________________________________ 2. For each scenario, IDENTIFY the independent and the dependent variable: (Chapter 1
Notes)
Scenario Independent variable Dependent variable
Susie wants to see if playing 80s music will cause plants to grow taller.
Joe wants to see if an increase in temperature affects the chirping of crickets.
On Oprah Winfrey, a guest claims that people who exercise vigorously for 15 minutes or more every day are able to solve math problems more rapidly than people who do no vigorous exercise as part of their daily routines.
Mrs. Ferraro wants to see if students who get 8 hours or more of sleep will perform better on tests.
Mrs. Brown wants to determine which popcorn, Giant or Orville Redenbacher, pops the most popcorn kernels.
Cell Chemistry – Water and pH
3. Using the chart below, Identify and Explain the properties of water. (pages 40-41, Characteristics of Water)
Illustration of the Concept Identify the property Explain the property
1) Cohesion
2) Solvent
3) Surface Tension
Illustration of the Concept Identify the property Explain the property
5) Capillary Action And Adhesion
6) Polarity
7) Solid, Liquid and a Gas
Illustration of the Concept Identify the property Explain the property
4. WHAT is the difference between acids and bases? (page 42 and 43)
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 5. Examine the pH scale diagram below and answer the following questions:
Paste picture of pH scale here!
a. The strongest acid is _____________________ with a pH of ____________________.
b. The strongest base is __________________ with a pH of _________________. c. The weakest acid is ___________________ with a pH of _________________. d. The weakest base is ___________________ with a pH of _________________. e. Water is a pH of __________ and is _____________ meaning that it is neither an
acid or a base because there are _________ numbers of hydrogen ions (H+) as
Cell Chemistry – Organic Compounds
6. WHAT is the difference between organic compounds and inorganic compounds? (section 2-3 Carbon Compounds notes)
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 7. For each of the following compounds, decide if they are organic or inorganic. Place a
check mark to identify whether they are inorganic or organic compounds.
Compounds Inorganic Compounds Organic Compounds
NaCl Lipids C6H12O6 (Glucose)
Lactase CO2 (Carbon Dioxide)
Calcium Iron (Fe+) DNA or RNA
Insulin H20 (Water)
Catalase
8. WHAT is a monosaccharide and disaccharide? (page 46, section 2-3 Carbon Compounds notes, OG Lab)
Monosaccharide:
________________________________________________________________________ ________________________________________________________________________ Disaccharide:
9. Using the Word Bank given, fill in the organic compound review (Organic Compounds Table Notes)
If you ever find yourself on Survivor, don’t overlook the assortment of food under your feet. To survive in the jungle, one might need to look in all places and eat whatever is available to
survive. Our bodies need ____________________________, ________________________, ___________________________, and nucleic acids.
Carbohydrates are composed of ______________, __________________, and oxygen. Most carbohydrates are made up of simple sugars called ____________________________. Many simple sugars bonded together into long chains form polysaccharides molecules such as _____________________, a component of cell structures such as the cell wall in plants. In living things, sugars are a source of _______________________. Sugars are soluble in water and easily transported from one location to another in plants (vascular tissue) and animals (the circulatory system). So, if you are in need of some energy, just start collecting crickets and you will gain the nutritional needs your body desires.
Like carbohydrates, _______________ are made of carbon, hydrogen and oxygen. Unlike many carbohydrates, they are not soluble in water. Lipids include fats, which are solids at room temperature and oils, which are liquid. Lipids are used in living things as sources of long term storage of ________________________. Some also serve as components of
____________________________. A typical lipid molecule is made by combining three _________________________ molecules and one molecule of __________________________. In the jungle, silk-worm pupae may give you enough lipids to meet your daily requirements. Proteins contain the elements carbon, hydrogen, oxygen and ____________________. Many also contain sulfur. The building blocks of proteins are smaller molecules called
____________________________________. These are arranged in long, chain like structures that may fold, spiral or form other complex structures. The ____________ of the protein molecule is often related to their ability to function. _____________ and pH can disrupt these shapes and therefore how the protein functions. Living cells synthesize thousands of proteins. Examples are ___________________ like lactase and maltase, some hormones such as insulin, and _________________, the protein that carries oxygen in the blood of humans and many other animals. Crickets and grasshoppers have a large amount of protein in them, so if you are in the need of protein, just grab some grasshoppers and manga!
Nucleic acids are very large molecules consisting of long chains of building blocks called
_____________________________________. Nucleotides are made from three smaller parts: a sugar, a phosphate and a nitrogen base. There are two main types of nucleic acids
____________ and ________________. DNA carries the important _____________________ information (instructions for making proteins), while RNA plays a vital role in the actual production of proteins.
Cell Chemistry – Chemical Reactions and Enzymes
10. Identify the REACTANTS and the PRODUCTS by labeling them below.
What is the name of the enzyme shown in this model? ___________________________ What is the name of the substrate shown in this model? __________________________ What are the names of the products shown in this model? ________________________ TO what class of biological organic compounds do enzymes belong? ______________ 11. EXPLAIN the diagram of an enzymatic reaction for maltase above. (page 52, Enzyme
Drawing). Be sure to include WHAT the steps are in which an enzyme catalyzes a reaction? Be able to describe both the “lock-and-key” model of enzyme activity in an essay format. (pages 52-53, Enzyme Notes (Enzyme Cloze)
Step 1:
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Step 2:
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Step 3:
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________
12. In the space below, DRAW the reverse enzymatic action of two glucose molecules being bonded together with the help of maltase to form the disaccharide, maltose.
13. WHAT are vitamins? What reactions do they assist (what molecule do they serve as)? (page 974, Vitamin notes)
________________________________________________________________________ ________________________________________________________________________ 14. WHAT are minerals? (page 975, vitamin notes)
________________________________________________________________________ ________________________________________________________________________ 15. Give the role of the following vitamins in your body: (page 974)
16. Explain why it is important to include vitamins and minerals in your diet. (Hint: Both vitamins and minerals are compounds that assist what type of reactions?) (page 974) ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________
Cell Chemistry - Testing for Organic Compounds
17. Remember that glucose can be detected by using Benedict’s indicator solution. In the presence of glucose, what color change takes place? (Organic Compounds Lab)
________________________________________________________________________ ________________________________________________________________________ Remember that starches can be detected by using iodine indicator solution. In the presence of a starch, what color change takes place? (Organic Compounds Lab)
________________________________________________________________________ ________________________________________________________________________
Sugars Starches
Benedict’s Reagent CarbohydratePresent (Yes or No)
Iodine Reagent CarbohydratePresent (Yes or No)
Distilled Water Blue Amber
(Dark Yellow)
Positive Control -
Glucose Yellow-Orange Black
Test tube #1 Yellow-Orange Amber
Test tube #2 Blue Black
Test tube #3 Yellow-Orange Amber
Remember that lipids can be detected by using Sudan IV indicator solution. In the presence of a lipid, what color change takes place? (Organic Compounds Lab)
________________________________________________________________________ ________________________________________________________________________ Remember that proteins can be detected by using Biuret’s indicator solution. In the presence of a protein, what color change takes place? (Organic Compounds Lab)
________________________________________________________________________ ________________________________________________________________________
Lipid Proteins
(Yes or No) (Yes or No)
Distilled Water Pink Light Blue
Positive Control Dark Red Ring Purple
Test tube #1 Pink Purple
Test tube #2 Dark Red Ring Light Blue
Test tube #3 Pink Purple
Possible BCRS
18. Be able to appropriately graph data, define the independent and dependent variable, controls, and the conclusion of an experiment.
19. Be able to identify, compare and contrast the four major classes of macromolecules (carbohydrates, lipids, proteins, and nucleic acids).
a. role/function for each macromolecule b. necessary chemical elements for each c. building block for each macromolecule d. examples of each macromolecule
HOMEWORK ASSIGNMENT:
My signature below indicates that I have reviewed these questions in this review packet with my student in order to help prepare him/her for the upcoming county assessment.
October 26, 2012:
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October 27-28, 2012:
I have reviewed this packet with my son/daughter: _____________________________________ Parent/Guardian Signature
October 29, 2012:
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