Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 9, Problem 12TYU
Summary Introduction
To determine: The reason why only some plant cells have chloroplast, but all actively
Introduction: Photosynthesis is a process by which carbon dioxide and water are broken down to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. The reactions of photosynthesis take place in the chloroplast of the plant cell, which contains the green pigment chlorophyll.
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Only some plant cells have chloroplasts, but all actively metabolizing plant cells have mitochondria. Why?
In chloroplasts, protons are pumped out of thestroma across the thylakoid membrane, whereas in mito-chondria, they are pumped out of the matrix across thecrista membrane. Explain how this arrangement allowschloroplasts to generate a larger proton gradient acrossthe thylakoid membrane than mitochondria can generateacross the inner membrane.
In photosynthesis, an H+ ion gradient forms across the ______.
thylakoid membrane
outer chloroplast membrane
inner chloroplast membrane
endomembrane
Chapter 9 Solutions
Biology (MindTap Course List)
Ch. 9.1 - Describe the physical properties of light and...Ch. 9.1 - Prob. 1CCh. 9.1 - Prob. 2CCh. 9.2 - Diagram the internal structure of a chloroplast...Ch. 9.2 - Prob. 3LOCh. 9.2 - Prob. 1CCh. 9.2 - What is the significance that the combined...Ch. 9.2 - Prob. 3CCh. 9.3 - Describe photosynthesis as a redox process.Ch. 9.3 - Distinguish between the light-dependent reactions...
Ch. 9.3 - Prob. 1CCh. 9.3 - In what ways do the carbon fixation reactions...Ch. 9.4 - Describe the flow of electrons through...Ch. 9.4 - Explain how a proton (H+) gradient is established...Ch. 9.4 - Prob. 1CCh. 9.4 - Prob. 2CCh. 9.4 - PREDICT Can cyclic electron transport alone...Ch. 9.5 - Summarize the three phases of the Calvin cycle and...Ch. 9.5 - Prob. 9LOCh. 9.5 - Prob. 10LOCh. 9.5 - Describe what happens in each of the three phases...Ch. 9.5 - A decrease in entropy occurs during the CO2 uptake...Ch. 9.5 - In what ways does photorespiration differ from...Ch. 9.5 - Prob. 4CCh. 9.6 - Prob. 11LOCh. 9.6 - Prob. 1CCh. 9.7 - State the importance of photosynthesis both in a...Ch. 9.7 - Prob. 1CCh. 9.7 - Prob. 2CCh. 9 - Where is chlorophyll located in the chloroplast?...Ch. 9 - In photolysis some of the energy captured by...Ch. 9 - Prob. 3TYUCh. 9 - In ________, electrons that have been energized by...Ch. 9 - The Calvin cycle begins when CO2 reacts with (a)...Ch. 9 - The enzyme directly responsible for almost all...Ch. 9 - Prob. 7TYUCh. 9 - An organism characterized as a photoautotroph...Ch. 9 - VISUALIZE Draw a simple sketch illustrating a...Ch. 9 - Prob. 10TYUCh. 9 - Prob. 11TYUCh. 9 - Prob. 12TYUCh. 9 - CONNECT High-energy electrons from glucose are...Ch. 9 - PREDICT What would life be like for...Ch. 9 - EVOLUTION LINK Propose an explanation for...Ch. 9 - INTERPRET DATA The figure depicts the absorption...Ch. 9 - SCIENCE, TECHNOLOGY, AND SOAETY What strategies...
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- Only some plant cells have chloroplasts, but all actively metabolizing plant cells have mitochondria. Explain.arrow_forwardDescribe in detail the roles of different modes of membrane transport played in the photosynthesis in chloroplasts.arrow_forwardDiscuss whether your data support the hypothesis that the movement of electrons in the electron transport chain of the chloroplast is light dependent.arrow_forward
- The thylakoid membrane of the chloroplast has features similar to the mitochondrial inner membrane. Which of these features is NOT a common feature? has photosensitive pigments has ATP synthase enzyme embedded in the membrane has limited permeability to protons is made of phospholipids is embedded with electron transport chain proteins.arrow_forwardWhich of the following is NOT true about the structure of chloroplasts? A) The thlakoid membranes are continuous with the intermembrane space B) The network of thylakoids within a chloroplast are one continuous space C)Thylakoids of the chloroplast developed due to the invagination of the inner plastid membrane D) All of these are true about chloroplast structure. E) Chloroplasts are considerably larger than mitochondriaarrow_forwardGive an example of two types of plant cells that lack chloroplasts. How do plant cells that lack chloroplasts produce the ATP they need? Do plant cells that contain chloroplasts also contain mitochondria?arrow_forward
- compare and contrast chloroplastss and mitochonndria from teh perspective of : organization of their electron transportation systems (z-scheme versus ETC)arrow_forwardList 5 similarities and differences between oxidative phosphorylation and light reactions in the chloroplastarrow_forwardbecause of the fallowing:Chloroplasts (note: in addition to mitochondria) Cell walls Vacuoleswhat can plant cells do that animal cells cannot?arrow_forward
- Predict the eff ect of adding myxothiazol, an inhibitor of electron transport in mitochondrial Complex III, to a suspension of chloroplasts exposed to light. Would either ATP or NADPH production be aff ected?arrow_forwardDetermine how chloroplasts generate a larger proton gradient across the thylakoid membrane than mitochondria can generate across the inner membrane.arrow_forwardThe matrix of the mitochondria is analogous to which of the following in chloroplast: a) Outer Membraneb) Inner Membranec) Thylakoid Membraned) Thylakoid Lumen e) Stromaarrow_forward
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