Asked in ETEA MDCAT 2014 2014

Chlorophyll is protected from intense light by:

Correct answer: D. Carotenoids

  • A. Phytochrome
  • B. Phytokinin
  • C. Phytocyanin
  • D. Carotenoids

Explanation

Some carotenoids protect chlorophyll from intense light by absorbing and dissipating excessive light energy, rather than transferring energy to chlorophyll.

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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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