Master Krebs Cycle in One Shot | Tricks to Remember Steps

Welcome to the ultimate One Shot on the Krebs Cycle (Tricarboxylic Acid Cycle) for NEET 2026! 🔄 In this video, Shakya Sir decodes the “heart” of Aerobic Respiration occurring in the Mitochondria.

Students often forget the order of acids (Citrate, Isocitrate, alpha-ketoglutarate, etc.). In this session, we use a Super Easy Mnemonic to memorize the entire cycle and calculate the exact energy yield.

📌 IN THIS VIDEO WE COVER:

✅ The Link Reaction (Gateway Step: Pyruvate to Acetyl CoA)

✅ Structure of Mitochondria (Matrix vs Inner Membrane)

✅ Steps of Krebs Cycle (Condensation to Regeneration)

✅ Where is $CO_2$ released? (Decarboxylation)

✅ Where are NADH & $FADH_2$ produced? (Oxidation)

✅ Substrate Level Phosphorylation (GTP/ATP formation)

✅ The Balance Sheet (Calculating 38 ATP vs 36 ATP)

✅ Amphibolic Nature of the Pathway

📢 FOLLOW SHAKYA SIR & PCMB:

Telegram Channel: [https://t.me/BiologywithDrShakyasirPCMB]

💡 NEET STRATEGY: Pay attention to the Alpha-Ketoglutaric Acid step! It is the only 5-Carbon compound in the cycle. Questions often ask “Which intermediate is formed after the first decarboxylation?” (Answer: Alpha-Ketoglutarate). Also, remember that Succinate Dehydrogenase is the only enzyme found in the Inner Membrane, not the Matrix!

#KrebsCycle #TCACycle #RespirationInPlants #NEET2026 #ShakyaSir #BiologyOneShot #CitricAcidCycle #Class11Biology #NEETBiology #PCMB

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Biology for NEET Exam NEET 2026

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