MACROMOLECULE WEBQUEST
Name__________________________________________________________________________
Honors Biology
MACROMOLECULE WEBQUEST **Read all, do not just look for and pick out what I asked you.
LIPIDS
1. Lipids are organic molecules that are ________________ in water.
2. What are the three types of lipids?
3. Draw and label the triglyceride in the picture.
4. What do neutral fats, such as triglycerides, do for your body?
5. Describe saturated fatty acids.
6. In what structures are phospholipids found?
7. Describe the uses of cholesterol in our bodies?
From
Click on biochemistry
Click on lipids
8. What are the two main parts of a lipid?
9. Explain what makes a fat saturated or unsaturated.
10. Describe the structure and the role of steroids.
11. What is the role of wax to an organism?
12. Compare the energy values of a carbohydrate molecule versus a fat molecule.
PROTEINS
1. Proteins comprise what percentage of our body cell mass? _______
2. What are proteins built from?
3. How many amino acids do we have in our bodies? ______
4. The primary structure of an amino acid is based upon what?
5. Describe the two forms of secondary structure.
CARBOHYDRATES
What elements are found in carbohydrates? ______________
1. What is the ratio of Carbon to Hydrogen to Oxygen? ________
2. Carbohydrates comprise what percentage of our body cell mass? ________
3. What is the smallest carbohydrate called?
4. List 4 monosaccharides.
5. Draw the straight chain and ring structure of the monosaccharides.
6. Describe what isomers are and how they apply to carbohydrates.
7. How are dissacharides formed?
8. List 3 disaccharides and the monosaccharides that form them.
9. Describe the three main polysaccharides and their functions.
10. Sugars are mainly providing living things with ________.
NUCLEIC ACIDS
Click on Biochemistry
Click on Nucleic Acids
1. Name the types of Nucleic Acids.
2. What is the monomer unit of a Nucleic Acid?
3. What are the three parts to a nucleotide?
4. What is the full name of DNA?
5. Why is DNA important?
ENZYMES
and
1. What are enzymes?
2. Without enzymes, would most chemical reaction still occur?
3. Without enzymes, what would happen to the rate of chemical reactions?
4. Enzymes are (choose one)
a. Lipids c. Proteins
b. Carbohydrates d. Nucleic acids
16. Enzymes act as catalysts – what does that mean?
17. Describe this picture of enzyme function in your own words
18. What factors can regulate enzyme activity?
Online Lab
Carbohydrates
Benedict’s Test Results
1. What type of carbohydrate does Benedict’s reagent test for?
2. What color will the Benedict’s reagent turn in the presence of sugar? Draw a picture showing before and after.
| |Color Of Solution |
|Benedict’s reagent+ water+ heat (control) | |
|Benedict’s reagent+ glucose + heat | |
Iodine Test
(Note: It does not say so in the lab, but iodine tests for the presence of starch and turns a dark purple/ brown when starch is present) Draw picture showing before and after.
| |Color of Solution |
|Iodine+ water (control) | |
|Iodine + starch solution | |
Fats/Lipids
1. What color will Sudan IV change fats? Draw picture showing before and after.
| |Color of Solution |
|Sudan IV + water (control) | |
|Sudan IV + vegetable oil | |
Proteins
1. What color will Biuret reagent turn in the presence of proteins? Draw a picture showing before and after.
| |Color of Solution |
|Biuret reagent+ water (control) | |
|Biuret reagent + protein solution | |
Food Testing
Based on the test results for each food check off which macromolecules are present in each food.
|Food |Monosaccharide Present |Starch Present |Lipid Present |Protein Present |
|Potato | | | | |
|Orange Juice | | | | |
|Almonds | | | | |
|Eggs | | | | |
|Salmon | | | | |
|Milk | | | | |
SOME GOOD FUN….These will have to be played with at home because you need shockwave and Java to run them and the Chromebooks do not have them loaded. We can not download.
Part A:
Go to
• Click through the tutorial until you have covered all concepts 1-6.
• This is an excellent tutorial. Allow yourself to make the most of it and let it “tutor” you on macromolecules!!
• Take the “self-quiz” at the end.
Part B:
Go to
Click on “Go to Activity” (the computer may ask to “allow” access, if so…”allow” it)
Read first general prompt and then click “next”
Read prompt about polymers and then click “next”
“Zoom” (by clicking) on ALL organisms in/around Tree of LIfe.
• Leaves
• Parrot
• Bee
• Spider web
• Monkey
• Iguana
• Syrup
• Frog
• Worm
• Bacteria
• Human
You will do this “zoom” many times on each organism. You will click on actual icon on tree, then again to cellular level, and then click on the blue highlighted in molecular level, and still even further. JUST KEEP CLICKING until you can’t go any further. Read the tutorials about each one. Now, test yourself! Go answer all the questions in part a, b, c, d, e.
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