Question
What is the role of large bundle sheath cells found around the vascular bundles in C4 plants?
To protect the vascular tissue from high light intensity.
To provide the site for photorespiratory pathway.
To increase the number of chloroplast for the operation of Calvin cycle.
To enable the plant to tolerate high temperature.
the large bundle sheath cells in C4 plants (Kranz anatomy) are characterized by having a large number of chloroplasts . While the mesophyll cells perform the initial C4 fixation, the Calvin pathway (biosynthetic phase) takes place specifically in the bundle sheath cells . These cells are rich in RuBisCO and allow the Calvin cycle to operate efficiently by maintaining a high concentration of CO2 . Photorespiration is absent in C4 plants , making option 2 incorrect.
This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Photosynthesis in Higher Plants . Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
More Photosynthesis in Higher Plants Questions
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?
In Hatch and Slack pathway, the primary CO2 acceptor is -
Which of the following statements about RuBisCO is true?
Oxygen is not produced during photosynthesis by:
During non-cyclic photophosphorylation, when electrons are lost from the reaction center at PS II, what is the source which replaces these electrons?
Match List-I with List-II: List-I A. C4 Pathway B. Light reaction C. Photorespiration D. Calvin cycle List-II I. 2H2O → 4H+ + O2 + 4e- II. Ribulose 1,5-bisphosphate III. 3-carbon molecule, phosphoenol pyruvate IV. Phosphoglycolate
Given below are two statements: Statement I: RuBisCO is the most abundant enzyme in the world. Statement II: Photorespiration does not occur in C4 plants. In the light of the above statements, choose the most appropriate answer from the options given below:
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