Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 6, Problem 4CT
As you learned in this chapter, cell membranes arc required for electron transfer phosphorylation. Thylakoid membranes in chloroplasts serve this purpose in photosynthetic eukaryotes. Prokaryotic cells do not have this organelle, but many are photosynthesizers. How do you think they carry out the light-dependent reactions, given that they have no chloroplasts?
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The above reaction (FADH2 donating its electrons to the electron transport chain) takes place in whichof the following eukaryotic cell locations?A. the mitochondrial matrixB. the thylakoid membrane of chloroplastsC. the chloroplast stromaD. the inner mitochondrial membraneE. the cytoplasm
A plant uses 54 ATP to build one glucose molecule, but only gets 36 ATP when it breaks the sugar down for energy. Why doesn't the plant run into an energy shortage?
Explain the similarities and differences between the electron transport chains occurring in the mitochondria with the electron transport chain associated with photosystem II. I am looking for your use of vocabulary - understanding of ETC and cell parts.
A cell performing photosynthesis can be compared to cook preparing a particular dish (say, adobo, for example). If this is so, to what can the following elements of photosynthesis be likened? One item is given as an example.
a. photosynthetic cell: cook or chef
b. light:________
c. chloroplast: _____________
d. CO2 and H2O:_____________
e. Glucose:__________________
Chapter 6 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 6 - A cat eats a bird, which ate a caterpillar that...Ch. 6 - Plants use__________ as an energy source to drive...Ch. 6 - Most of the carbon dioxide that plants use for...Ch. 6 - Which of the following statements is incorrect? a....Ch. 6 - Prob. 5SQCh. 6 - When a photosystem absorbs light, __________. a....Ch. 6 - Prob. 7SQCh. 6 - What accumulates inside the thylakoid compartment...Ch. 6 - The atoms in the molecular oxygen released during...Ch. 6 - Prob. 10SQ
Ch. 6 - Prob. 1DAACh. 6 - Energy Efficiency of Biofuel Production Most of...Ch. 6 - Energy Efficiency of Biofuel Production Most of...Ch. 6 - The Calvin-Benson cycle starts when a. light is...Ch. 6 - Which of the following substances does not...Ch. 6 - Closed stomata ________. a. limit gas exchange b....Ch. 6 - In C3 plants, ______ makes sugar production...Ch. 6 - Match each with its most suitable description....Ch. 6 - Prob. 1CTCh. 6 - While gazing into an aquarium, you see bubbles...Ch. 6 - AC3 plant absorbs a carbon radioisotope (as part...Ch. 6 - As you learned in this chapter, cell membranes arc...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following approaches would be the best way to detect the lack of photosystem II in some photosynthetic organisms? Determine whether they have thylakoid membranes. Determine whether they consume CO2 in the dark. Determine whether they produce O2 in the light. Determine the action spectrum for photosynthesis in these organisms.arrow_forwardThese are the two by-products of the citric acid cycle that are needed in the electron transport chain A. NAD and FAD B. NADH and FADH2 C. NADH and FADH D. NADH2 and FADH2 Aside from the citric acid cycle, what other cellar respiration process happen inside the mitochondria? A. Electron transport chain B. Krebs cycle C. Glycolysis D. Photosynthesis What process uses the products of light-dependent reaction such as ATP and NADPH? A. Krebs cycle B. Electron transport chain C. Light-independent reaction D. Dark-independent reactionarrow_forwardAfter electrons are raised to high energy levels in photosystem II, they travel down an electron transport chain. As they are stepped down in energy, the lost energy is used to power which process. The pumping of high energy electrons into the intermembrane space. This creates a large difference in concentration and in electric charge between the intermembrane space and the lumen of the thylakoid. When these high energy electrons rush back into the thylakoid lumen, they are forced to travel through one of the ATP synthase molecules that sits embedded in the thylakoid membrane. ATP synthase uses the flow of hydrogen ions to phosphorylate ADP, converting it to ATP. The pumping of hydrogen ions into the stroma. This creates a large difference in concentration and in electric charge between the stroma and the lumen (watery interior) of the thylakoid. When When the hydrogen ions in the stroma rush back into the thylakoid lumen, they are forced to…arrow_forward
- How are the processes of cellular respiration and photosynthesis related? The carbon molecules in glucose are converted to what molecule during respiration? What happens to the carbon dioxide molecules plants use in photosynthesis? Do plants have both chloroplasts and mitochondria? Why would this be?arrow_forwardThe above reaction (NADH donating its electrons directly to the electron transport chain) takes placein which of the following eukaryotic cell locations? A. the inner mitochondrial membraneB. the thylakoid membrane of chloroplastsC. the chloroplast stromaD. the mitochondrial matrixE. the cytoplasmarrow_forwardin mitochondria, the electron transport chain pumps protons from the matrix into the intermembrane space. in what direction are protons pumped by the electron transport chain in chloroplasts?arrow_forward
- The above product water molecules are generated in which eukaryotic cell compartment?A. the mitochondrial matrix (site of the Krebs cycle)B. the thylakoid membrane of chloroplasts (site of photosystems I and II)C. the chloroplast stroma (site of the Calvin cycle)D. the inner mitochondrial membrane (site of electron transport)E. the cytoplasm (site of glycolysis)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?arrow_forwardWhich complex is not involved in the establishment of conditions for ATP synthesis? a. photosystem I b. ATP synthase c. photosystem II d. cytochrome complexarrow_forward
- Why is it necessary for cells to have a vacuole filled with water if they are photosynthetic cells? Plant cells that do no do photosynthesis, might store starch or pigments in their vacuoles. So, why is a reservoir of water essential for cells doing photosynthesis? In your answer, be sure to refer to the organelle that does photosynthesis.arrow_forwardIn 2005, a new species of green sulfur bacteria was discovered near a geothermal vent at the bottom of the ocean. An exceptionally efficient light-harvesting mechanism allows these bacteria to carry out photosynthesis where the only illumination is a dim volcanic glow emanating from the vent. Cell membrane are required for electron transfer chains in the light-dependent reactions. but these bacteria have no internal membranes. How do you think they carry out the light-dependent reactions?arrow_forwardin 2005, a new species of green sulfur bacteria wasdiscovered near a geothermal vent at the bottom of the ocean. An exceptionally efficient light-harvesting mechanism allows these bacteria to carry out photosynthesis where the only illumination is a dim volcanic glow emanating from the vent. Cell membranes are required for electron transfer chains in the light-dependent reactions, but these bacteria have no internal membranes. How do you think they carry out the light-dependent reactions?arrow_forward
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