The C4 pathway utilizes less ATP than C3 pathway thus enabling C4 plants to adapt to tropical temperatures. True False
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- Pfr, the active state of _______________, forms when red light is absorbed. (a) photosystem I (b) phytochrome (c) far-red light (d) phototropin (e) cryptochromeMost of the carbon that land plants use for photosynthesis comes from ______. a. glucose b. the atmosphere c. water d. soilIn C3 plants, _______ makes sugar production inefficient when stomata close on hot, dry days. a. photosynthesis c. photorespiration b. photolysis d. carbon fixation
- Which of the following statements is incorrect? a. Pigments absorb light of certain wavelengths only. b. Many accessory pigments are multipurpose molecules. c. Chlorophyll a is green because it absorbs green light.The C4 pathway utilizes less ATP than C3 pathway thus enabling C4 plants to adapt to tropical temperatures. Group of answer choices: True FalseExamples of C3, C4 and CAM plants.
- Which of the following descriptions about C4 and CAM plants is not correct? Select one: a. CAM plants use CO2 released from organic compounds during the day b. C4 and CAM plants both close stomata during the day in hot and dry climates. c. in C4 plants, PEP carboxylase present in bundle-sheath cells incorporate CO2 into C4 compounds d. CAM plants fix CO2 at night e. C4 plants use PEP carboxylase to fix CO2 even when CO2 concentrations are lowWhich of the following statements is are TRUE? Ca pathway involves a single C02 fixation step. In CAM plants. stomata are open during day time. Chlorophyll pigments absorb maximum light in the green wavelength. Reaction center of PSI is P700Corn is an example of a C4 plant which can tolerate hot weather conditions. True False
- A venus flytrap is a carnivorous plant. Which of the following best describes this organism Autotroph Mixotroph Lithotroph HeterotrophWhy would a C4 plant have a competitive advantage at high temperatures? a) There is more rubisco in all the cells of C4 plants. b) C4 plants use rubisco to fix carbon. c) C4 plants use PEP carboxylase to fix carbon. d) C4 plants have higher rates of photorespiration.Fire is a critically important, natural disturbance in many ecosystems. Describe some plant adaptations that allow plants to survive fires.