Which of tne followingl is electron carrier?
Correct answer: D. All of the above
- A. Plastocyonin
- B. Cytochromes
- C. Plastoquinones
- D. All of the above
Explanation
Plastoquinones are molecules that serve as electron carriers in the process of photosynthesis. They help transport electrons during the light-dependent reactions in plants. On the other hand, cytochromes are proteins that also act as electron carriers, specifically in cellular respiration. They play a role in transferring electrons within the electron transport chain to produce ATP. Both are essential for energy production in different biological processes.
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About Plant Nutrition and Transport
Plants require macronutrients and micronutrients for growth, and mineral deficiencies produce recognizable symptoms. Transport involves water and minerals through xylem by transpiration pull, cohesion and adhesion, while phloem translocates sugars from sources to sinks. Root pressure and transpiration are distinct mechanisms.
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