Cellular Respiration Questions and Answers Latest Version Graded A+

Cellular Respiration Questions and Answers Latest Version Graded A+ What is cellular respiration? Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water. What is the main goal of cellular respiration? The main goal of cellular respiration is to produce ATP, the energy currency of the cell. Where does glycolysis occur in the cell? Glycolysis occurs in the cytoplasm of the cell. What is the first step in cellular respiration? The first step in cellular respiration is glycolysis, where glucose is broken down into pyruvate. What are the two main types of cellular respiration? The two main types of cellular respiration are aerobic respiration and anaerobic respiration. 2 What happens during aerobic respiration? During aerobic respiration, oxygen is used to completely break down glucose into carbon dioxide, water, and ATP. What is the role of oxygen in cellular respiration? Oxygen serves as the final electron acceptor in the electron transport chain, enabling the production of ATP. Where does the citric acid cycle (Krebs cycle) take place? The citric acid cycle takes place in the mitochondria. What is produced during the citric acid cycle? The citric acid cycle produces ATP, NADH, FADH2, and carbon dioxide. What are NADH and FADH2 used for in cellular respiration? NADH and FADH2 are electron carriers that transport high-energy electrons to the electron transport chain. 3 What is the final product of the electron transport chain? The final product of the electron transport chain is water, formed when electrons combine with oxygen and protons. What is the primary function of ATP synthase in cellular respiration? ATP synthase is responsible for producing ATP by adding a phosphate group to ADP during oxidative phosphorylation. How many ATP molecules are produced in glycolysis? Glycolysis produces a net gain of 2 ATP molecules. What is the importance of the proton gradient in cellular respiration? The proton gradient created by the electron transport chain drives ATP production by ATP synthase. What is fermentation and when does it occur? Fermentation is an anaerobic process that occurs when oxygen is unavailable, allowing cells to produce ATP without oxygen, usually resulting in lactic acid or ethanol.