1. How does the structure of nucleic acids differ from the structure of proteins? A. Nucleic acids make up nucleotides, and proteins make up amino acids. B. Nucleic acids contain amino acids, and proteins contain nucleotides. C. Nucleic acids make up amino acids, and proteins make up nucleic acids. D. Nucleic acids contain nucleotides, and proteins contain amino acids. D

2. Which organic molecule would a long-distance runner most likely choose to eat before a race? A. a protein because it builds muscle mass B. a carbohydrate because it gives quick energy C. a carbohydrate because it stores and releases energy D. a protein because it transports oxygen in the blood stream C

3. Which best explains the process that occurs in order for energy to be derived from starch? A. It must be dissolved in water. B. It must be converted into glucose. C. It must be combined with another polysaccharide. D. It must be decomposed into carbon, hydrogen, and oxygen. B

4. How are the structures of proteins and carbohydrates similar. A
How are the structures of proteins and carbohydrates similar? A. They both contain sulfur. B. They both contain amino acids. C. They both contain oxygen, hydrogen, and carbon. D. They both contain oxygen, hydrogen, nitrogen, and carbon. C

5. Why are proteins among the most diverse molecules. A
Why are proteins among the most diverse molecules? A. They create nucleic acids. B. They form muscle in animals. C. Amino acids can link up in different combinations. D. Amino Acids are made up of more than 20 different proteins. C

6. What is a difference between saturated and unsaturated fats. A
What is a difference between saturated and unsaturated fats? A. Saturated fats are liquid and unsaturated fats are solid. B. Saturated fats are solid and unsaturated fats are liquid. C. Saturated fats are healthier for you than unsaturated fats. D. Saturated fats contain double carbon bonds and unsaturated fats have single bonds. B

7. Which type of organic molecule should a person limit to lose weight. A
Which type of organic molecule should a person limit to lose weight? A. carbohydrates, because they store twice as much energy/gram and if they are not used, they will cause weight gain B. lipids, because they store twice as much energy/gram and if they are not used, they will cause weight gain C. carbohydrates, because they are nonpolar molecules and are insoluble in water D. lipids, because they are nonpolar and soluble in water B

8. Which best describes the difference between DNA and RNA. A
Which best describes the difference between DNA and RNA? A. DNA is an amino acid and RNA is a nucleic acid. B. DNA contains phosphate and RNA contains potassium. C. DNA has a nitrogenous base and RNA has a carbon base. D. DNA contains deoxyribose sugar and RNA contains ribose sugar. D

9. Which best explains why the structure of starch molecules is similar to that of lipid molecules? A. Both starches and lipids dissolve in water. B. Both starches and lipids provide the cell with strength. C. Both starches and lipids consist of long chains of sugars. D. Both starches and lipids consist of long chains of carbon. D

10. Which best explains the function of the sequence of nucleotides. A
Which best explains the function of the sequence of nucleotides? A. It provides energy. B. It carries genetic information. C. It allows DNA to be successfully copied. D. It determines the shape of the DNA molecule. B