Principles Of Biology 1 (Module 1 Energy Drinks)

1. Which is an example of potential energy rather than kinetic energy? A. An apple made up of energy-rich macromolecules. B. A firefly using light flashes to attract a mate. C. A skier at the bottom of the hill instead of the top of the hill. D. A pile of leaves that have been burned. E. A candle giving off light.

Answer: A (An apple made up of energy-rich macromolecules)

3. Which of the following statements describes the correct flow of energy conversions through living systems? A. Chloroplasts convert solar energy to the chemical energy of nutrient molecules. B. Mitochondria convert ATP molecules into glucose. C. Chloroplasts produce CO2 and H2O during photosynthesis. D. Mitochondria capture solar energy and convert it to oxygen. E. Chloroplasts burn glucose into ATP molecules during cell respiration.

Answer: A (Chloroplasts convert solar energy to the chemical energy of nutrient molecules)

8. Which of the following is a true statement about proteins? A. Proteins are made up of amino acids bonded together. B. Even small changes in temperature and pH will immediately destroy a protein's shape and function. C. Proteins are used to produce ATP for the cell. D. Extra proteins are stored in the liver and brain. E. Proteins are used to insulate the body from cold and protect it from abuse.

Answer: A (Proteins are made up of amino acids bonded together)

5. Hydrolysis of sucrose, a disaccharide, results in. A. Two monomers. B. The release of functional groups. C. Three monosaccharides. D. Two glycerol units. E. Two nucleotides.

Answer: A (Two monomers)

9. Select the correct association A. carbohydrates—provide the body with an immediate source of energy. B. lipids—structural components of hair, fingernails, and claws. C. proteins—have three forms: monosaccharides, disaccharides, and polysaccharides. D. carbohydrates—composed of amino acids bound together with peptide bonds. E. proteins—make up the bulk of the plasma membrane of cells.

Answer: A (carbohydrates—provide the body with an immediate source of energy)

4. Which of the following is an organic molecule? A. CaCO3. B. C6H12O6. C. (BH)3(NH)3. D. NaCl.

Answer: B (C6H12O6)

10. Which one of the following is a main function of many proteins? A. Detoxification. B. Enzymatic activity. C. Genetic coding. D. Energy source. E. Insulation.

Answer: B (Enzymatic activity)

2. Which of the following statements best describes ATP? A. ATP is formed when energy is released during photosynthesis. B. When ADP + P becomes ATP, the amount of energy released is enough for a biological purpose. C. ATP is comprised of a sugar, base, and three phosphate groups. D. ADP is extremely high in potential energy.

Answer: C (ATP is comprised of a sugar, base, and three phosphate groups.

6. In which of the following is the correct monomer matched with its polymer? A. Fatty acid——Protein. B. Monosaccharide——Lipid. C. Glycerol——Carbohydrate. D. Amino acid——Protein. E. Fatty acid——Carbohydrate.

Answer: D (Amino acid——Protein)

7. The principal role for sugars in living organisms is too. A. Form cell membranes. B. Serve as a form of long-term energy storage. C. Create our genetic code. D. Provide a source of cellular energy for work. E. Produce hormones.

Answer: D (Provide a source of cellular energy for work)