Science, Tech, Math › Science How Much Do You Know About Cellular Respiration? Cellular Respiration Quiz! Share Flipboard Email Cellular Respiration. Purestock/Getty Images Science Biology Cell Biology Basics Genetics Organisms Anatomy Physiology Botany Ecology Chemistry Physics Geology Astronomy Weather & Climate By Regina Bailey Regina Bailey Biology Expert B.A., Biology, Emory University A.S., Nursing, Chattahoochee Technical College Regina Bailey is a board-certified registered nurse, science writer and educator. Her work has been featured in "Kaplan AP Biology" and "The Internet for Cellular and Molecular Biologists." Learn about our Editorial Process Updated on September 09, 2018 The energy required to power living cells comes from the sun. Plants capture this energy and convert it to organic molecules. Animals in turn, can gain this energy by eating plants or other animals. The energy that powers our cells is obtained from the foods we eat.The most efficient way for cells to harvest energy stored in food is through cellular respiration. Glucose, derived from food, is broken down during cellular respiration to provide energy in the form of ATP and heat. Cellular respiration has three main stages: glycolysis, the citric acid cycle, and electron transport.In glycolysis, glucose is split into two molecules. This process occurs in the cell's cytoplasm. The next stage of cellular respiration, the citric acid cycle, occurs in the matrix of eukaryotic cell mitochondria. In this stage, two ATP molecules along with high energy molecules (NADH and FADH2) are produced. NADH and FADH2 carry electrons on to the electron transport system. In the electron transport stage, ATP is produced by oxidative phosphorylation. In oxidative phosphorylation, enzymes oxidize nutrients resulting in the release of energy. This energy is use to convert ADP to ATP. Electron transport also occurs in mitochondria. 1. Which structure of a eukaryotic cell is involved in cellular respiration? nucleus endoplasmic reticulum mitochondrion golgi apparatus Correct Wrong Mitochondria are the cell organelles in which the aerobic phases of cellular respiration occur. 2. Glucose and _______ are consumed during cellular respiration. carbon dioxide oxygen water nitrogen Correct Wrong Glucose and oxygen are consumed during cellular respiration in order to obtain the stored energy (ATP) within the foods we eat. 3. Which is not a product of cellular respiration? ATP water glucose carbon dioxide Correct Wrong Glucose is not a product of cellular respiration. During cellular respiration, glucose is oxidized to yield the products water, carbon dioxide, and ATP. 4. In the presence of oxygen, the first stage of cellular respiration is ______ . glycolysis citric acid cycle electron transport fermentation Correct Wrong Glyolysis is the first stage of aerobic cellular respiration. This stage occurs in the cytoplasm of the cell. 5. In glycolysis, each glucose molecule is broken down into 2 molecules of _____ . acetyl coenzyme A pyruvate citric acid lactic acid Correct Wrong In glycolysis, each glucose molecule is split into two molecules of pyruvate. Two ATP molecules are produced for each glucose molecule at the end of glycolysis. 6. Without oxygen, glycolysis allows cells to make small amounts of ATP through _____ . oxidative phosphorylation electron transport osmosis fermentation Correct Wrong In the absence of oxygen, pyruvate molecules produced in glycolysis are used to generate ATP through fermentation. Lactic acid is produced in the process. Fermentation also occurs in some bacteria and fungi. 7. Pyruvate molecules are converted to _____ molecules to be used in the citric acid cycle. citric acid acetyl coenzyme A fumaric acid lactic acid Correct Wrong Upon entering cell mitochondria, pyruvate molecules are converted to acetyl coenzyme A molecules to be used in the citric acid cycle. This cycle takes place in the mitochondrial matrix. 8. In a eukaryotic cell, most ATP is produced during which process? glycolysis citric acid cycle oxidative phosphorylation fermentation Correct Wrong Most of the ATP derived from aerobic cellular respiration is produced through the electron transport chain. The electron transport chain is a series of electron carriers in the folded membranes of mitochondria that produces ATP. 9. What is the chemical equation for the process of cellular respiration? C6H12O6 (glucose) + 6 O2 (oxygen) → 6 CO2 (carbon dioxide) + 6 H2O (water) + ~38 ATP C6H12O6 (glucose) + 6 H2O (water) → 6 CO2 (carbon dioxide) + 6 O2 (oxygen) + ~36 ATP 6 CO2 (carbon dioxide) + 6 H2O (water) + light → C6H12O6 (glucose) + 6 O2 (oxygen) C6H12O6 (glucose) + 6 CO2 (carbon dioxide) → 6 O2 (oxygen) + 6 H2O (water) + ~38 ATP Correct Wrong The chemical equation for cellular respiration is C6H12O6 + 6O2 → 6CO2 + 6H2O + ~38 ATP. Glucose is broken down to carbon dioxide and water. In the process, ATP is generated to be used as fuel for cellular processes. 10. A eukaryotic cell can yield a net total of ____ ATP molecules per glucose molecule. 36 38 40 34 Correct Wrong Eukaryotic cells yield a net total of 36 ATP molecules per glucose molecule. Two of the 38 ATP molecules produced during cellular respiration are used to transport NADH molecules (produced in glycolysis) across the mitochondrial membrane. How Much Do You Know About Cellular Respiration? You got: % Correct. Awesome Score! You did a great job!. Dean Mitchell/Getty Images Wow! You are a cellular respiration whiz. It is evident that you really put in the time and effort to understand cellular respiration. You are ready for additional challenging information on other cellular processes such as photosynthesis, DNA replication, DNA transcription, protein synthesis, as well as mitosis and meiosis. For more fascinating informatin on cells, see the Different Types of Body Cells, 10 Facts About Cells, Why Some Cells Commit Suicide, and How Cells Move. Share Your Results Share Flipboard Email How Much Do You Know About Cellular Respiration? You got: % Correct. Good Job! Molecular Model. Fuse/Getty Images Well done! You've done well but there is still room for improvement. To sure up any gaps in your knowledge of cellular respiration, study up on glycolysis, the Citric Acid Cycle, and mitochondria. Continue your investigation into the cell and cellular processes by learning more about the differences between plant and animal cells, photosynthesis, cell organelles, diffusion and osmosis, and mitosis and meiosis. Share Your Results Share Flipboard Email How Much Do You Know About Cellular Respiration? You got: % Correct. Try Again! Frustrated Student. Clicknique/Getty Images Cheer up, it's okay. You didn't do as well as you hoped, but you can take this opportunity to delve deeper into cellular respiration. To increase your knowledge of this subject, study up on glycolysis, the Citric Acid Cycle, and mitochondria. Don't stop there. The cell is fascinating. Discover the parts of a cell, the differences between plant and animal cells, the different types of cells in the body, how cells move, and how cells reproduce. Share Your Results Share Flipboard Email