BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 8, Problem 3VCQ
Figure 8.18 Which of the following statements is true?
- In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. G3P and water are products.
- In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. G3P and oxygen are products.
- In photosynthesis, water, carbon dioxide, ATP, and NADPH are reactants. RuBP and oxygen are products.
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+
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Chloroplast
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ADP
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is TRUE?
O When they close stomatal cells, they save water but lose too much O2.
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C3 plants have to spend energy to store carbon in a separate specialized cell.
Chapter 8 Solutions
BIOLOGY 2E
Ch. 8 - Figure 8.6 On a hot, dry day, plants close their...Ch. 8 - Figure 8.16 What is the source of electrons for...Ch. 8 - Figure 8.18 Which of the following statements is...Ch. 8 - Which of the following components is nor used by...Ch. 8 - What two main products result from photosynthesis?...Ch. 8 - In which compartment of the plant cell do the...Ch. 8 - Which statement about thylakoids in eukaryotes is...Ch. 8 - Predict the end result if a chloroplast’s light-,...Ch. 8 - How are the NADPH and GA3P molecules made during...Ch. 8 - Which of the following structures is not a...
Ch. 8 - How many photons does it take to fully reduce, one...Ch. 8 - Which complex is not involved in the establishment...Ch. 8 - From which component of the light-dependent...Ch. 8 - Three of the same species of plant are each grown...Ch. 8 - Plants containing only chlorophyll b are exposed...Ch. 8 - Which molecule must enter the Calvin cycle...Ch. 8 - Which order of molecular conversions is correct...Ch. 8 - Where in eukaryotic cells does the Calvin cycle...Ch. 8 - Which statement correctly describes carbon...Ch. 8 - If four molecules of carbon dioxide enter the...Ch. 8 - What is the overall outcome of the light reactions...Ch. 8 - Why are carnivores, such as lions, dependent on...Ch. 8 - Why are energy carriers thought of as either...Ch. 8 - Describe how the grey wolf population would be...Ch. 8 - How does the closing of the stomata limit...Ch. 8 - Describe the pathway of electi on transfer from...Ch. 8 - What are the roles of ATP and NADPH in...Ch. 8 - How and why would the end products of...Ch. 8 - Why is the third stage of the Calvin cycle called...Ch. 8 - Which part of the light-independent reactions...Ch. 8 - Why does it take three turns of the Calvin cycle...Ch. 8 - Imagine a sealed terrarium containing a plant and...Ch. 8 - Compare the flow of energy with the flow of,...
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- Which of the following does not occur in anoxygenic photosynthesis? Bacteriochlorophyll is involved in the light reaction. Water is split into oxidized and reduced parts. The system operates under anaerobic conditions. O ATP is formed via cyclic photophosphorylation.arrow_forwardIdentify each statement below as True or False. * Another name for phase I of photosynthesis is electron transport. Phase I of photosynthesis stores energy in NADPH molecules. Photosynthesis takes place inside the mitochondria. Energy is stored in water molecules during phase I of photosynthesis. Phase I of photosynthesis is also known a the light- dependent reactions. Photosynthesis phase I stores energy that is used to power phase II. Phase I of photosynthesis stores energy in ATP molecules. Phase I of photosynthesis can only take place when light is available. Light is not required for phase I of photosynthesis. The process of photosynthesis takes in the chloroplasts of a cell. place True ο ο ο ο ο ο ο ο False O оarrow_forwardDiagram 8: Temperature and Rate of Photosynthesis 5 10 15 20 25 30 35 40 temperature (°C) The most accurate explanation for lower rates of photosynthesis at high temperatures would be The water splitting enzyme and ATP synthase will change their shapes at higher temperature and not function properly. There is less light at high temperatures to power the light dependent reactions. Less O2 is available to power the Calvin Cycle when temperatures are high. There is a lower availability of CO2 for photosynthesis at higher temperatures. rate of photosynthesisarrow_forward
- Where do photosynthetic organisms get the energy needed to make sugars during the light- independent/dark reactions? They use the ATP and NADPH that are produced during the light-dependent reactions. They convert the 6-carbon sugars into 5-carbon sugars. They obtain the energy directly from the Sun. They use the ADP and carbon dioxide produced during the light-dependent reactions.arrow_forwardThe light-dependent portion of photosynthesis, in the chloroplasts of green plants and green algae, uses sunlight to strip electrons and protons away from which of the following substrate molecules? water and carbon dioxide only glucose only water only carbon dioxide only glucose, water, and carbon dioxide onlyarrow_forwardThe process of photosynthesis can be modeled in various ways. For example, a chemical equation is one way to represent photosynthesis. 6CO, + 6H,0 ++ +→ 60, + C,H,,O,arrow_forward
- The basic raw materials for photosynthesis are: sugar and carbon dioxide. water and carbon dioxide. oxygen and water. sugar and water. oxygen and carbon dioxidearrow_forwardWhich of the following statements about the light reactions of photosynthesis are correct? 1. Absorption of light does one thing: it makes chlorophyll easier to oxidize. 2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair. 3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+. 4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+. A. 1,2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1,2,3 and 4 are correctarrow_forwardWhich of the following is not produced during the light reactions of photosynthesis? H2O NADPH O2 ATParrow_forward
- Draw a diagram of the dark phase of photosynthesis. You must represent this phase in the form of a cycle indicating the parts of carboxylation, reduction, generation of hexoses and regeneration. Ribulose, CO2, rubisco, phosphoglycerate (PGA), bisphosphoglycerate, phosphoglyceraldehyde (PGAL), ATP, ADP, NADPH, NADP, kinase, fructose, and glucose should appear.arrow_forwardOxygenic photosynthesis, in cyanobacteria, green algae, and green plants, consumes which of the following substrate molecules? H2O, CO2, and C6H12O6 C6H12O6 and O2 only CO2 and C6H12O6 only CO2 and H2O only C6H12O6, H2O, and O2arrow_forwardThe inputs for photosynthesis are and and the outputs are and O 02, H20, light energy -- CO2, C6H1206 Olight energy, H2O, CO2 -- 02, ATP O 02, C6H1206, H2O -- ATP, CO2 O energy, CO2, H20 -- 02, C6H1206arrow_forward
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