Question

Choose the correct answers from the alternatives given :
In an eukaryotic cell, TCA cycle and electron transport system take place within

• A. nucleolus
• B. peroxisomes
• C. mitochondria
• D. stroma

Answer 1

The correct option is C mitochondria

In eukaryotic cells the cellular respiration occurs in three steps :

1. Glycolysis
2. Krebs cycle
3. Terminal oxidation

Glycolysis occurs in the cytoplasm of the cell where glucose molecule is breakdown into pyruvate, this pyruvate enters the mitochondria through the inner mitochondrial membrane and then it starts Krebs cycle which is later followed by the electron transport system.

so, the correct option is ' mitochondria'.