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In chlorophyll molecule mg is situated in a centre of porphyrin ring b corner of porphyrin ring c in phytol tail d in isocyclic ring
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In chlorophyll molecule mg is situated in a centre of porphyrin ring b...
Introduction to Chlorophyll Structure
Chlorophyll is a vital pigment found in plants, responsible for capturing light energy for photosynthesis. Its structure is complex, featuring a porphyrin ring that plays a crucial role in its function.
Location of Magnesium in Chlorophyll
The magnesium (Mg) ion is integral to the chlorophyll molecule, specifically positioned within the porphyrin ring. Here’s a detailed breakdown of its location and significance:
Key Points about Magnesium in Chlorophyll:
  • Central Position: The Mg ion is located at the center of the porphyrin ring. This central placement is essential for the pigment’s ability to absorb light effectively.
  • Coordination with Nitrogen: The magnesium is coordinated with the nitrogen atoms of the porphyrin, which stabilizes the structure and allows for the formation of a planar configuration essential for light absorption.
  • Functional Role: The presence of magnesium enables the chlorophyll molecule to participate in the conversion of light energy into chemical energy. It plays a pivotal role in the process of photosynthesis by facilitating electron transfer.
  • Comparison to Other Components: Unlike the phytol tail or the isocyclic ring, which help anchor the chlorophyll in the thylakoid membrane, the porphyrin ring's central magnesium is fundamental for light absorption and energy transformation.


Conclusion
Understanding the location and role of magnesium in chlorophyll is crucial for grasping how plants harness solar energy. The central position of Mg within the porphyrin ring highlights its importance in the overall function of chlorophyll in photosynthesis.
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In chlorophyll molecule mg is situated in a centre of porphyrin ring b...
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Attempt All sub parts from each question.Molecular Perspective In water, there are two types of molecules. Some molecules are at the surface, called exterior molecules, and some molecules are inside, called interior molecules. The interior molecules are attracted to all the molecules around them. The exterior molecules are attracted to only the other surface molecules and to those below the surface. So that the energy state of the molecules on the interior is much lower than that of the molecules on the exterior. The molecules always try to maintain a lower energy state and hence the exterior molecules experience a downward force. This force is known as cohesive force. As a result they try to maintain a minimum surface area, thus allowing more molecules to have a lower energy state. Thus surface tension is created. The water molecules attract one another due to the water molecule’s polar property. The hydrogen ends, which are positive in comparison to the negative ends of the oxygen, cause water to "stick " together. This is why there is surface tension. Water has very high surface tension. It is 72.8 milli newton per meter at 20°C.Q. The water molecules attract one another due to the water molecule’s

Attempt All sub parts from each question.Molecular Perspective In water, there are two types of molecules. Some molecules are at the surface, called exterior molecules, and some molecules are inside, called interior molecules. The interior molecules are attracted to all the molecules around them. The exterior molecules are attracted to only the other surface molecules and to those below the surface. So that the energy state of the molecules on the interior is much lower than that of the molecules on the exterior. The molecules always try to maintain a lower energy state and hence the exterior molecules experience a downward force. This force is known as cohesive force. As a result they try to maintain a minimum surface area, thus allowing more molecules to have a lower energy state. Thus surface tension is created. The water molecules attract one another due to the water molecule’s polar property. The hydrogen ends, which are positive in comparison to the negative ends of the oxygen, cause water to "stick " together. This is why there is surface tension. Water has very high surface tension. It is 72.8 milli newton per meter at 20°C.Q. Which one of the following is the correct molecular structure of water molecule?

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In chlorophyll molecule mg is situated in a centre of porphyrin ring b corner of porphyrin ring c in phytol tail d in isocyclic ring
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