Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 7.2, Problem 1TC
You continuously monitor the photosynthetic oxygen production from the leaf of a plant illuminated by white light. How and why would oxygen production change if you placed filters in front of the light source that transmit (a) only red, (b) only infrared, and (c) only green light onto the leaf?
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You continuously monitor the photosynthetic oxygen production from the leaf of a plant illuminated by white light. How and why would oxygen production change if you placed filters in front of the light source that transmit (a) only red, (b) only infrared, and (c) only green light onto the leaf?
Which molecule is responsible for the absorption of photic energy for photosynthesis? Where is that molecule located in the photosynthetic cells?
If plants described in problem 4 are illuminated by a combination of light of 680 nm and 700 nm, the oxygen production exceeds that of either wavelength alone. Explain.
Chapter 7 Solutions
Biology
Ch. 7.1 - What chemical reactions allow plants to capture...Ch. 7.1 - explain why photosynthesis is important?Ch. 7.1 - diagram the structure of leaves and chloroplasts...Ch. 7.1 - write out and explain the basic equation for...Ch. 7.1 - summarize the main events of the light reactions...Ch. 7.2 - You continuously monitor the photosynthetic oxygen...Ch. 7.2 - Prob. 1HYEWCh. 7.2 - What reactions allow plants to store the...Ch. 7.2 - list the light capturing molecules in chloroplasts...Ch. 7.2 - diagram and describe the molecules within the...
Ch. 7.2 - Prob. 3CYLCh. 7.3 - Prob. 1TCCh. 7.3 - describe the function of the Calvin cycle and...Ch. 7.3 - list the three stages of the Calvin cycle,...Ch. 7.3 - describe the fate of the simple sugar G3P...Ch. 7.3 - Prob. 2TCCh. 7.3 - What global policy changes and what individual...Ch. 7 - Which of the following is True? a. Photosynthesis...Ch. 7 - The Calvin cycle a. can only occur when light is...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Which of the following is False? a. Photosystem II...Ch. 7 - Prob. 1FIBCh. 7 - Chlorophyll a captures wavelengths of light that...Ch. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - Light reactions generate the energy-carrier...Ch. 7 - Explain what would happen to life if...Ch. 7 - Prob. 2RQCh. 7 - Draw a simplified diagram of a leaf cross-section...Ch. 7 - Draw a simplified diagram of a chloroplast and...Ch. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Suppose an experiment is performed in which plant...Ch. 7 - Prob. 2ACCh. 7 - Assume you want to add an accessory pigment to the...
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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 represents a correct sequence in non-cyclic photophosphorylation? a. photosystem I -> ATP production -> photosystem II -> NADPH production b. photosystem II -> ATP production -> photosystem I -> NADPH production c. photosystem I -> NADPH production -> photosystem II -> ATP production d. photosystem II -> NADPH production -> photosystem I -> ATP productionarrow_forwardIn terms of the spatial organization of photosynthesis within the chloroplast, what is the advantage of the light reactions producing NADPH and ATP on the stroma side of the thylakoid membrane?arrow_forwardIn an experiment conducted on photosynthesis-CO2 update and photosynthesis-Determining rate in white light. what gas will be produce as an product of photosynthesis and if present, what will this allow the leaf dice to do? Also, what will be the goal of photosynthesis, and how will it be different from the goal of cellular respiration?arrow_forward
- Why would nature evolve a key enzyme, rubisco, that is so sensitive to oxygen, resulting in photorespiration?arrow_forwardPlants must obtain CO2 but avoid the loss of H2O by evaporation. What would be the effect of increased atmospheric [CO2] on photosynthesis?Would the effect be the same for C3 and C4 plants?arrow_forwardWhich of the following changes would decrease ATP production in the light-dependent reactions of photosynthesis? a. decreasing the pH of the thylakoid lumen b. decreasing the pH of the chloroplast stroma c. increasing the concentration of NADP+ in the chloroplast stroma d. making the thylakoid membrane freely permeable to protons by adding a proton channel e. two of the above would decrease ATP productionarrow_forward
- Suppose a researcher is carrying out studies in which she adds a nonphysiological electron donor to a suspension of chloroplasts. Illumination of the chloroplasts yields oxidation of the donor. How could she tell whether photosystem I, II, or both are involved?arrow_forwardWhat would be the effect on plants if photorespiration did not exist?arrow_forwardBoth photosynthesis and respiration occur in leaves when they are in the light. If the leaves float, is more O2 being produced by photosynthesis or consumed by respiration?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_forwardWhat are the two places where light energy is required in the light reaction of photosynthesis? Why must energy be supplied at precisely these points?arrow_forwardIf chlorophyll is extracted from plant cells and exposed to light, it absorbs light energy momentarily and this energy is almost immediately reradiated as light. Thus chlorophyll molecules can not cause photosynthesis by themselves. Why? What is required for photosynthesis to occur?arrow_forward
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