Organic Chemistry Quiz Star ReviewName
1. A solution with a pH of 4 is ______times more acidic than one with a pH of 7
A. 30 B. 3 C. 100 D. 1,000 E. 10,000
2. All of the following are correct about enzymes EXCEPT
A. they are proteins B. they are denatured by changes in pH C. they are denatured at high temperatures D. they are assisted by vitamins E. they are degraded during chemical reactions
3. Which of the following is NOT a carbohydrate
A. Glucose B. Glycogen C. Glycerol D. Galactose E. Chitin
4. Which of the following organic molecules is corretly matched with the subunit that composes it.
A. Carbohydrates - Monosaccharide B. Lipids - Glucose C. Proteins - Nucleic Acids
D. DNA - Amino Acids E. None of the above is correct
5. What functional groups are found in each amino acid (CHOOSE ALL THAT APPLY)
A. Carboxyl Group B. Hydroxyl Group C. Phosphate Group D. Amino Group E. Radical Group
6. What would happen to the rate of a chemical reaction in which the substate concentration increased but enzyme concentration was held constant.
A. Reaction rate would stop as the enzymes became degraded
B. Reaction rate would speed up as the substrate was added
C. Reaction rate would initially increase but then level off as all the active sites become occupied
D. Reaction would slow as substrate was added
E. None of the above are true
7. Which of the following foods contains the greatest amount of energy per gram
A. fat B. starch C. sugar D. proteins E. vitamins
8.Enzymes in the human body: I) are proteins II) typically work best at 37 C III) are changed during a reaction IV) are found in the stomach only
A. I only B. II only C. I and II D. I, II, and III E. I, II, III, and IV
9. Carbohydrates I) are made of C, H, O only II) may be used for direct energy III) may make up the cell walls of plants IV) may make up the bones of humans
A. I and II only B. II and III only C. I, II, and IV D. II, III, and IV E. I, II, and III
10. Which of water's following properties is most important for life on Earth
A. Water is an inorganic molecule B. Water has a low specific heat
C. Water has a neutral pH D. Chemical reactions may occur in water
E. Liquid water is less dense that ice
11. Which of the following compose Nucleotides (CHOOSE ALL THAT APPLY)
A. Amino Group B. Phospahte Group C. Nitrogenous Base D. Carboxyl Group
E. 5 Carbon Sugar
12. Which of the following molecules would be considered ORGANIC (CHOOSE ALL THAT APPLY)
A. Carbon Dioxide B. Water C. Glucose D. Amino Acid E. Hydrochloric Acid
F. Hydrogen Peroxide G. Sodium Chloride H. Glycerol
13. What is the ratio of glycerol to fatty acid molecules in a lipid?
A. 2 : 1 B. 1 : 3 C. 1 :2 D. 4 : 1 E. 3 : 2
14. What level of structure is most responsible for a protein's shape? (This is the same level at which any given protein may become functional)
A. primary B. secondary C. tertiary D. quaternary E. Schutzanry
15. Which of the following processes are NOT carried out by all living things (CHOOSE ALL ANSWERS THAT APPLY) A. Transpiration B. Excretion C. Locomotion D. Respiration E. Reproduction
F. Circulation G. Regulation
1-D, 2-E, 3-C, 4-A, 5-A-D-E, 6-C, 7-A, 8-C, 9-E, 10-D, 11-B-C-E, 12-C-D-E, 13-B, 14-C, 15-A-C-E