Explain well. Asap Reason behind answer. In a shady environment C4 photosynthesis is less efficient becausethe initial slope of the photosynthesis vs. light level curve increases under cooler conditionsO the increased levels of violaxanthin require addition NADPH to oxidize.O it requires more ATP per unit carbon assimilated.O Rubisco is more enzymatically active.O the inherant limitations of the Calvin cycle are reduced.

In C4 photosynthesis, where a four-carbon compound is produced, unique leaf anatomy allows carbon…

In a shady environment C4 photosynthesis is less efficient because O the initial slope of the photosynthesis vs. light level curve increases under cooler conditions the increased levels of violaxanthin require addition NADPIH to oxidize. O it requires more ATP per unit carbon assimilated. Rubisco is more enzymatically active. O the inherant limitations of the Calvin cycle arc reduced.

In a shady environment C4 photosynthesis is less efficient because O the initial slope of the photosynthesis vs. light level curve increases under cooler conditions the increased levels of violaxanthin require addition NADPIH to oxidize. O it requires more ATP per unit carbon assimilated. Rubisco is more enzymatically active. O the inherant limitations of the Calvin cycle arc reduced.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter8: Photosynthesis

Section: Chapter Questions

Problem 4TYK

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The Overall Free Energy Change for Photosynthetic NADP+ Reduction What is the overall free energy change (G) for noncyclic photosynthetic electron transport? 4 (700-nm photons) + 4 (680-nm photons) + 2 H2O + 2 NADP+O2 + 2 NADPH + 2H+
Which of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2
In ________, electrons that have been energized by light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) C4 pathways (e) photophosphorylation
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Photosynthesis directly opposes respiration in determining how plants influence atmospheric CO2 concentrations. When a leaf is in the light, both photosynthesis and respiration are occurring simultaneously. The data in the Table were collected from the leaf of a sagebrush plant that was enclosed in a chamber that measures the rate of CO2 exchange. The same leaf was used to collect the data in Interpret the Data in Chapter 7. Respiration is shown as a negative and photosynthesis as a positive rate of CO2 exchange. The net photosynthesis rate is the amount of CO2 (in micromoles per square meter per second) assimilated by the leaf while respiration is occurring; a positive value indicates more photosynthesis is occurring than respiration. The light exposed to the leaf is quantified as the number of photons in the 400 to 700 nm wavelength, the photosynthetic photon flux density (PPFD); 2,000 mol/m2/s is equivalent to the amount of light occurring at midday in full Sun. Observation Photosynthetic Photon Flux Density (PPFD) (mol/m2/s) Net Photosynthesis (mol/m2/s) 1 2,000 9.1 2 1,500 8.4 3 1,250 8.2 4 1,000 7.4 5 750 6.3 6 500 4.8 7 250 2.2 8 0 -2.0 Why is net photosynthesis negative when PPFD is zero? Looking at the respiration data from Interpret the Data in Chapter 7, at what temperature do you think these data were collected? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.
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Is the following statement true or false? Unlike animals, which make many ATP by aerobic respiration, plants make all of their ATP by photosynthesis.
The light reactions of photosynthesis supply theCalvin cycle with(A) light energy.(B) CO2 and ATP.(C) H2O and NADPH.(D) ATP and NADPH
Chloroplasts are illuminated until the levels of the Calvin cycle intermediatesreach a steady state. The light is then turned off . How does the level of RuBP vary after this point?
The Calvin cyclea. can only occur when light is present.b. is the part of photosynthesis where carbon is captured. c. produces ATP and NADPH.d. occurs in the thylakoids.