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In CAM plants, carbon dioxide is fixed by C4 pathway into ?, which is stored in ?
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- Even though C4 plants require more ATP per CO₂ fixed, at higher temperatures, they are more efficient than C3 plants. Which of the following explains the effectiveness of C4 plants? contains a mutant form of Rubisco that does not bind to oxygen oxygen is prevented from entering the bundle-sheath cells where Rubisco is found Oduring the night, carbon dioxide is stored as malate so that stomata do not need to open during the day O photorespiration in C4 plants produces energy while in C3 plants, energy is consumedWhich of the following are correct about C 4 Cycle and C 4 plants? P. Phosphoenolpyruvate carboxylase is located in to thylakoid membrane of chloroplast. Q. Malate or aspartate is transported to the bundle sheath cells. R. Photorespiration is higher in C 4 plants. S. RuBisCo is found in the bundle sheath. Q and S P and Q R and S P, Q and RC4 plants have higher photosynthetic rates than C3 plants because they have an additional CO2-fixing enzyme located in the bundle sheath cells.
- The C4 pathway utilizes less ATP than C3 pathway thus enabling C4 plants to adapt to tropical temperatures. O True O False « Previous Nex Saving... SubmThe use of the C4 pathway for initial carbon fixation (CO2 into a 4C compound) I. occurs only in plants with specialized leaf anatomy containing bundle sheath cells surrounded by a ring of mesophyll cells II. occurs during the day in CAM plants III. reduces the problems of photorespiration by isolating the enzyme PEP carboxylase from high levels of dissolved O2 Select one: a. Only III is true b. Only I and III are true c. Only I is true d. Only I and II are true e. I, II and III are trueWhat effect would there be on C3 and C4 plants for increased oxygen levels? Why? Explain its effect in the mechanism of the pathway.
- The use of the C4 pathway for initial carbon fixation (CO2 into a 4C compound) I. occurs only in plants with specialized leaf anatomy containing bundle sheath cells surrounded by a ring of mesophyll cells II. occurs during the day in CAM plants III. reduces the problems of photorespiration by isolating the enzyme PEP carboxylase from high levels of dissolved O2Why are some plants called C4 plants and why are they important? How have they adapted to unfavorable climatic conditions? How do the activities of C4 plants compare with the activities of CAM plants?Which of the following statements about the C4 cycle is incorrect? a. CO2 initially combines with PEP. b. PEP carboxylase catalyzes a reaction to produce oxaloacetate. c. Oxaloacetate transfers electrons from NADPH and is reduced to malate. d. Less ATP is used to run the C4 cycle than the C3 cycle. e. The cycle runs when O2 concentration is high.
- W hen a culture of Chlamydomonas is exposed to HIGH intensity light, the cells will display negative phototaxis and move away from the light. Which of the following could act as a cellular signal triggering movement away from the light? A. Low levels of P700+ relative to P700 in the chloroplast. B. High levels of G3P in the cytosol. C. High levels of NAD+ relative to NADH in mitochondria. D. Low levels of ATP relative to ADP in the cytosol.Need help In what kinds of environments would you expect to find C3, C4, or CAM plants? What is the advantage of the C4 pathway when CO2 concentrations are low?Which statement about C4 and CAM plants is TRUE? C4 and CAM plants have an additional carbon fixing enzyme C4 and CAM plants have reduced rates of cellular respiration. C4 plants separate initial carbon fixation from the light reactions There are no TRUE answers A pineapple is a C4 plant, agave is a CAM plant C4 plants open their stomata only at night