Which of the following combination is an example of self-replicating organelles?
Correct answer: B. Mitochondria and Chloroplasts
- A. Mitochondria and Ribosomes
- B. Mitochondria and Chloroplasts
- C. Mitochondria and Vacuoles
- D. Mitochondria and Lysosomes
Explanation
The correct answer is Option B: Mitochondria and Chloroplasts. These organelles are unique because they contain their own DNA and can replicate independently of the cell's main genome. This feature is consistent with the endosymbiotic theory, suggesting that mitochondria and chloroplasts originated from ancient symbiotic bacteria. In contrast, ribosomes are complex molecular machines assembled in the nucleolus, vacuoles function as storage compartments without genetic material, and lysosomes are produced by the Golgi apparatus without possessing their own DNA or self-replicating ability.
Last updated
About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.