Which of the following is double membranous organelle?
Correct answer: D. All A, B, C
- A. Nucleus
- B. Mitochondria
- C. Chloroplast
- D. All A, B, C
Explanation
The correct answer is Option D: All A, B, C. The nucleus, mitochondria, and chloroplasts are organelles that each have a double membrane structure. The nucleus is encased in a nuclear envelope, the mitochondria have an outer membrane and a highly folded inner membrane called cristae, and the chloroplasts contain thylakoid membranes within a double membrane. Each plays a vital role in cellular function: the nucleus for genetic information storage, mitochondria for energy production, and chloroplasts for photosynthesis in plants. Options A, B, and C individually highlight these organelles, but only Option D correctly acknowledges that all three are double membranous.
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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.
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