BiologyFundamental ConceptNCTB জীববিজ্ঞান অধ্যায় ৪ (জীবনীশক্তি)
ATP (Adenosine Triphosphate)
Bengali: এটিপি (জৈব মুদ্রা)•Pronunciation: এডিনোসিন ট্রাইফসফেট•Symbol: \text{ATP}
Standard Definition:
The primary energy currency of the cell, storing metabolic energy in its high-energy phosphoanhydride bonds.
📐 Mathematical Equation, Units & Dimensions
Defining Mathematical Equation
Standard SI Unit
7.3 kcal/mol or 30.55 kJ/mol(শক্তি সঞ্চয়: $7.3\text{ kcal/mol}$ বা $30.55\text{ kJ/mol}$)
Dimensional Analysis
CGS Unit
cal/mol
📖 Physical Concept & Comprehensive Explanation
Referred to as the biological currency of life. Breaking terminal phosphate bonds of ATP yields approximately 7.3 kcal/mol (30.55 kJ/mol), powering vital mechanical, osmotic, and chemical work.
🎯 High-Yield Revision Points
- ✓Known as the cellular energy coin.
- ✓Hydrolysis of terminal phosphate yields 7.3 kcal/mol.
- ✓Regenerated via cellular respiration and photophosphorylation.
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❓ Frequently Asked Exam Questions (FAQ)
Common questions in board and competitive entrance examinations
Q1: Why is ATP termed the energy currency of the cell?
Just as monetary currency facilitates commerce, cells store and spend energy directly in the form of ATP.