Biology
Grade-9
Easy
Question
__________ are sites where cell respiration occurs and release energy.
- Mitochondria
- Endoplasmic Reticulum
- Lysosomes
- Chloroplast
Hint:
The Krebs cycle and oxidative phosphorylation are the two processes of cellular respiration that occur in the mitochondria. Glycolysis, the first process in cellular respiration, occurs in the cytoplasm.
The correct answer is: Mitochondria
- Mitochondria are the 'engine room' of eukaryotic organisms, as they are the main site of cellular respiration.
- Cellular respiration is the metabolic process in which oxygen is used to break down carbohydrates, fats, and proteins to generate adenosine triphosphate (ATP).
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