Unit Five Homework Assignment - Courtney Vogel

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Wisconsin Indianhead Technical College *

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Chemistry

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Jan 9, 2024

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Chemistry Unit Five Homework Assignment 1. What is the ratio of carbon to hydrogen to oxygen in a carbohydrate molecule? 1:2:1 Ratio 2. Identify the following common carbohydrates as monosaccharides, disaccharides, or polysaccharides. a. sucrose (also known as table sugar) _ Disaccharide ___________________ b. starch (found in plants and vegetables) _ Polysaccharide ___________________ c. glucose (a common sugar in the body) __ Monosaccharide __________________ d. lactose (the sugar found in milk) __ Disaccharide __________________ e. cellulose (the structure of plants) _ Polysaccharide ___________________ 3. What common monosaccharide is found in RNA? Ribose 4. What other product is produced when two monosaccharides combine to form a disaccharide? (other than the disaccharide itself) Biose 5. What is the difference between a carbohydrate and a lipid? Carbohydrates offer energy to cells while lipids store energy. 6. What is the difference between a saturated fat and an unsaturated fat? Saturated fat is tightly packed and fat is loosely packed with a double bond. 7. Which is considered more healthy, saturated fat or unsaturated fat? Why? (2 pts.) Unsaturated fat is considered to be healthier because it lowers blood cholesterol levels and decreases your risk of heart attack and stroke. 8. Are lipids such as saturated or unsaturated fats soluble in water? No, they are not soluble in water. 9. Proteins are chains of _ amino acids ___________________ .
10. How many different types of amino acids are there? There are 20 amino acids 11. What is the abbreviation for a protein that contains the amino acids serine, lysine, tryptophan, and glutamine? (2 pts.) Polypeptide 12. What type of bond connects amino acids to form a protein? Peptide bonds 13. What type of bond causes proteins to sometimes form a pleated or helix shape? Hydrogen bonds 14. What amino acid found in turkey and other foods can cause drowsiness? (Recent evidence suggests that the amount of this amino acid in turkey is NOT enough to cause the popular Thanksgiving Day naps. Rather, researchers believe the quantity of food consumed, along with alcohol if consumed, is responsible for being tired after the Thanksgiving meal.) Tryptophan DON'T FORGET DISCUSSION BOARD!
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