Exam 1 with Answer Key - General Biology | BIOL 1001, Exams of Biology

Download Exam 1 with Answer Key - General Biology | BIOL 1001 and more Exams Biology in PDF only on Docsity! 1 Marks: 1 Which of the following reactions would be endergonic? Choose one answer. a. ATP to ADP + Pi b. HCl to H+ + Cl- c. C6H12O6 + 6 O2 to 6 CO2 + 6 H2O d. all of these e. glucose + fructose to sucrose Question 2 Marks: 1 An exergonic (spontaneous) reaction is a chemical reaction that _____. Choose one answer. a. leads to a decrease in the entropy of the universe b. is common in anabolic pathways c. occurs only when an enzyme or other catalyst is present d. cannot occur outside of a living cell e. releases energy when proceeding in the forward direction Question 3 Marks: 1 Which of the following is an example of the second law of thermodynamics as it applies to biological reactions? Choose one answer. a. The aerobic respiration of one molecule of glucose produces six molecules each of carbon dioxide and water. b. Cellular respiration releases some energy as heat. c. Two of the choices are correct. d. All types of cellular respiration produce ATP. e. All three choices are correct. Question 4 Marks: 1 Which of the following states the relevance of the first law of thermodynamics to biology? Choose one answer. a. All organisms must produce some heat as a result of the processes of life. b. Living organisms must increase the entropy of their surroundings. c. Photosynthetic organisms produce energy in sugars from sunlight. d. The total energy taken in by an organism must be greater than the total energy stored or released by the organism. e. Energy can be freely transformed among different forms as long as the total energy is conserved. Question 5 Marks: 1 Which is the most abundant form of energy in a cell? Choose one answer. a. chemical energy b. kinetic energy c. mechanical energy d. heat