BIOD 101 MODULE 3 EXAM & REVIEW GUIDE Actual Questions and Verified Answers | Updated 2026/2027 | Portage Learning

BIOD 101 MODULE 3 EXAM & REVIEW GUIDE Actual Questions and Verified Answers | Updated 2026/2027 | Portage Learning. What is the purpose of the citric acid cycle? The citric acid cycle (CAC), aka the Krebs cycle, generates high energy molecules (NADH and FADH2) that will be later used to generate ATP in the Electron Transport Chain (ETC) T/F: Anabolism refers to the sum of all synthetic energy-requiring biochemical reactions. True Which of the following chemical reactions requires energy and occurs when two or more monomers are joined together, resulting in the loss of a water molecule and possibly other small molecules? Dehydration condensation reaction Which of the following is produced during Reaction 1 of the CAC? Citrate T/F: The electron transport chain directly produces ATP. False; the ETC does not directly produce any ATP. However, establishing a proton gradient across the mitochondrial membrane will lead to the production of ATP via ATP synthase. Fill-in-the-blank: _______ respiration involves the consumption of oxygen, while ______ respiration can proceed in the absence of oxygen. Aerobic; anaerobic Which of the following is an electron transport in the ETC? Oxygen, Cytochromes, Ubiquinone Where does the entire process of glycolysis occur in the cell? Cytoplasm In reaction 8 of the CAC, _________ is oxidized, and another NAD+ is reduced to NADH. Malate What role does ATP synthase play in the ETC? ATP synthase is responsible for generating ATP through chemiosmosis. The energy payoff phase is also known as an __________ reaction because energy is released in this biochemical reaction. Exergonic