Concept explainers
To determine: The role of molecular oxygen in photosynthesis.
Introduction: Photosynthesis is a process in which solar energy is used for the formation of chemical energy that is glucose from the carbon dioxide and water. This process takes place in the thylakoid membrane of chloroplast. This thylakoid membrane contains two types of photosystem units: PS I that absorb 700 nm of light and PS II that absorb 680 nm of light. Electron transport occurs from photosystem II. When the light of 680 nm strikes on photosystem II, the water molecules present near the photosystem II splits into hydrogen ion (2H+) and evolve as oxygen gas.
To determine: The role of molecular oxygen in aerobic
Introduction: Aerobic cellular respiration is the process by which energy is produced in a cell. Energy is released from the breakdown of glucose in cellular respiration that is used by the cell for performing various life processes. Mitochondria are considered as the powerhouses of the cell, which synthesizes energy in the form of ATP.
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Chapter 9 Solutions
Biology (MindTap Course List)
- Aerobic respiration takes place in three stages: transition, Krebs cycle, and electron transport. What is each stage called and where in the mitochondrion does each stage take place? What happens during each stage, what are the reactants and what are the products?arrow_forwardWhat is the function of the mitochondria? What is the relationship between ATP and ADP? Why is ATP so important in biological systems?arrow_forwardPlants undergo both photosynthesis and cellular respiration. Why don’t plants simply use the ATP pro¬duced in the light reactions of photosynthesis to drive cellular processes? A) The ATP produced during photosynthesis is chemically different from the ATP produced during cellular respiration and cannot be used for anabolic reactions B) ATP cannot be stockpiled so the plants would have no energy during non-daylight hours C) The plants have no way of getting the ATP made during photosynthesis out of the chloroplasts to the rest of the cell D) Plants rely on cellular respiration to remove excess O2 and prevent photorespirationarrow_forward
- What happens if there is no oxygen in the electron transport chain?arrow_forwardWhat is the metabolic process for photosynthesis and cellular respiration, and where in the cell does each take place?arrow_forwardWhat molecule is the final electron acceptor in the electron transport chain (ETC)? What byproduct of aerobic cellular respiration is formed in the process?arrow_forward
- Indicate whether the statement is true for aerobic respiration, photosynthesis or both: NADH is oxidized to NAD+ at complex I a)Aerobic Respiration b)Photosynthesis c)Botharrow_forwardIn what ways are oxygenic photosynthesis and respirationrelated?arrow_forwardWhat are the coenzymes that initiates the generation of ATP in the Electron transport chain?arrow_forward
- What is the direct mechanism of ATP synthesis during the electron transport phase of cellular respiration? (what is the potential energy source that drives ATP production?) b) Why is oxygen needed for this phase? c) What is the role of ATP synthasearrow_forwardPhotosynthesis and cellular respiration both utilize free energy to generate ATP. What process is common to both photosynthesis and cellular respiration? a) Electron transport chain b) Calvin Cycle c) Citric Acid Cycle d) Photophosphorylationarrow_forwardWhich of the four stages of aerobic cellular respiration is most similar to the light-independent reactions oxygenic photosynthesis? Explainarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning