Question:
Respiration in plants
Respiration in plants
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Mitochondria are the powerhouses of plant cells where Krebs cycle and oxidative ATP phosphorylation take place.
Updated On: Sep 15, 2026
- leads to synthesis of sugars
- occurs in microbodies
- occurs in mitochondria
- results in energy loss
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Cellular aerobic respiration oxidizes hexose sugars into $\text{CO}_2$ and $\text{H}_2\text{O}$ while generating metabolic energy (ATP).
Step 2: Detailed Explanation:
While initial glycolysis takes place in the cytosol, the major biochemical phases of aerobic respiration—namely the Tricarboxylic Acid (TCA/Krebs) cycle in the matrix and the electron transport chain (oxidative phosphorylation) in the inner mitochondrial cristae—occur within the mitochondria.
Step 3: Final Answer:
Therefore, respiration in plants occurs in mitochondria.
Cellular aerobic respiration oxidizes hexose sugars into $\text{CO}_2$ and $\text{H}_2\text{O}$ while generating metabolic energy (ATP).
Step 2: Detailed Explanation:
While initial glycolysis takes place in the cytosol, the major biochemical phases of aerobic respiration—namely the Tricarboxylic Acid (TCA/Krebs) cycle in the matrix and the electron transport chain (oxidative phosphorylation) in the inner mitochondrial cristae—occur within the mitochondria.
Step 3: Final Answer:
Therefore, respiration in plants occurs in mitochondria.
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