Podcast
Questions and Answers
What is the purpose of the movement of H+ ions from the lumen to the stroma through ATP synthase?
What is the purpose of the movement of H+ ions from the lumen to the stroma through ATP synthase?
- To break down glucose into ATP
- To transfer electrons from Photosystem II to Photosystem I
- To generate light energy
- To synthesize ATP from ADP (correct)
What is the result of the energy excitation of the electron present in the P700 chlorophyll a?
What is the result of the energy excitation of the electron present in the P700 chlorophyll a?
- The electron is used to synthesize ATP
- The electron is transferred to the primary electron acceptor (correct)
- The electron is released into the stroma
- The electron is transferred back to the P700 chlorophyll a
What is the role of ATP synthase in chemiosmosis?
What is the role of ATP synthase in chemiosmosis?
- To transfer electrons from Photosystem I to Photosystem II
- To break down glucose into ATP
- To facilitate the movement of H+ ions from the lumen to the stroma (correct)
- To generate light energy
Where does the electron transport chain take place in a eukaryotic cell?
Where does the electron transport chain take place in a eukaryotic cell?
What is the source of electrons that fill up the missing ones in the P700 chlorophyll a?
What is the source of electrons that fill up the missing ones in the P700 chlorophyll a?
What is the result of the transfer of the photo-excited electron from the reaction center complex of Photosystem I?
What is the result of the transfer of the photo-excited electron from the reaction center complex of Photosystem I?
Which of the following is NOT a stage of the Calvin cycle?
Which of the following is NOT a stage of the Calvin cycle?
What is the role of enzymes in the mitochondrial cristae?
What is the role of enzymes in the mitochondrial cristae?
What is the purpose of the electron transport chain in the light reactions?
What is the purpose of the electron transport chain in the light reactions?
What is the outcome of the energy passed on from one pigment molecule to another until it reaches the reaction center complex of Photosystem I?
What is the outcome of the energy passed on from one pigment molecule to another until it reaches the reaction center complex of Photosystem I?
Which of the following is a high-energy molecule?
Which of the following is a high-energy molecule?
What is the role of the primary electron acceptor in the light reactions?
What is the role of the primary electron acceptor in the light reactions?
What is the reactant in photosynthesis that is oxidized to produce carbon dioxide?
What is the reactant in photosynthesis that is oxidized to produce carbon dioxide?
Where do the citric acid cycle and electron transport chain take place in a eukaryotic cell?
Where do the citric acid cycle and electron transport chain take place in a eukaryotic cell?
What is the product of photosynthesis that is released into the atmosphere?
What is the product of photosynthesis that is released into the atmosphere?
What is the number of metabolic pathways involved in cellular aerobic respiration?
What is the number of metabolic pathways involved in cellular aerobic respiration?
What is the purpose of the electron transport chain in the light reactions?
What is the purpose of the electron transport chain in the light reactions?
What is the result of the uneven distribution of hydrogen ions in the stroma and the lumen?
What is the result of the uneven distribution of hydrogen ions in the stroma and the lumen?
What is the role of plastoquinone (Pq) in the electron transport chain?
What is the role of plastoquinone (Pq) in the electron transport chain?
What is the energy source used to pump hydrogen ions across the membrane?
What is the energy source used to pump hydrogen ions across the membrane?
What is the purpose of the cytochrome complex in the electron transport chain?
What is the purpose of the cytochrome complex in the electron transport chain?
What is the result of the electrons passing through the electron transport chain?
What is the result of the electrons passing through the electron transport chain?
What is the role of plastocyanin (Pc) in the electron transport chain?
What is the role of plastocyanin (Pc) in the electron transport chain?
What is the final destination of the electrons in the electron transport chain?
What is the final destination of the electrons in the electron transport chain?
Study Notes
Energy Transformation in Photosynthesis
- Light energy is absorbed by a pigment molecule, which passes the energy to a reaction center complex, exciting an electron.
- The excited electron is transferred to a primary electron acceptor, making the P700 chlorophyll a positively charged and seeking electrons to fill up the missing ones.
Light Reactions
- Light energy is used to initiate electron transfer, reducing NADP+ to NADPH and splitting water to give off oxygen as a by-product.
- ATP is formed through phosphorylation, taking place in the thylakoids of the chloroplast.
- The movement of hydrogen ions through the ATP synthase channel triggers the synthesis of ATP from ADP.
- Chemiosmosis is the process of H+ ions moving from the lumen to the stroma through ATP synthase, equalizing their distribution.
Calvin Cycle
- The Calvin cycle is a series of reactions that incorporate CO2 into organic molecules through carbon fixation.
- The Calvin cycle uses NADPH and ATP produced in the light reactions to produce carbohydrate from the fixed carbon.
- The cycle takes place in the stroma of the chloroplast and returns ADP, inorganic phosphate, and NADP+ to the light reactions.
- Enzymes help in the process by unwinding the DNA coils.
Cellular Respiration
- Glycolysis happens in the cytoplasm of the cell.
- The citric acid cycle (Krebs cycle) and electron transport chain are in the mitochondrion of the eukaryotic cell.
- There are three metabolic pathways in cellular aerobic respiration: glycolysis, citric acid cycle, and electron transport chain.
Biological Systems
- Chloroplasts and mitochondria play a significant role in metabolism and their functions are connected to the biological systems.
- The Calvin cycle is also known as the 'dark reactions' because it doesn't require light energy for its processes to take place.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz is about the process of chemiosmosis, where H+ ions move from the lumen to the stroma through ATP synthase, equalizing their distribution.
