Of the following which one is not the characteristic of mitochondria?
Correct answer: D. Number of mitochondria is constant
- A. It contains F1 particles
- B. It is involved in the synthesis of protein
- C. It is a self replicating organelle
- D. Number of mitochondria is constant
Explanation
Mitochondria contain F1 particles, possess their own DNA and ribosomes, and can synthesize some proteins and replicate independently. Their number is not constant because cells with high energy demands generally contain more mitochondria; students may choose b by wrongly assuming mitochondria only produce ATP and cannot synthesize protein.
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About Cytoplasmic Organelles
Cytoplasmic organelles are the specialized structures suspended in cytoplasm, including mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles and centrosomes. Questions compare their structures and functions in animal and plant cells, including chloroplasts and the role of the endomembrane system in transport and secretion.
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