Functional group of chlorophyll a:
Correct answer: A. -CH3
- A. -CH3
- B. -CHO
- C. -COOH
- D. -OH
Explanation
Chlorophyll A is a bluish-green pigment that is soluble in organic solvents like acetone and alcohol. It's molecular formula is C55H72O5N4Mg. It is made up of a squarish tetrapyrrolic ring known as the head and a phytol alcohol known as the tail.
This question appeared on the UHS MDCAT 2016 paper, which you can sit online with every answer explained.
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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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