Some cellular organelles are bounded by a single membrane, while others have two membranes around them. Which one of the following is correct?
Correct answer: A. Vacuole and lysosome are single membrane-bounded; nucleus and chloroplast are double membrane-bounded
- A. Vacuole and lysosome are single membrane-bounded; nucleus and chloroplast are double membrane-bounded
- B. Chloroplast and lysosome are double membrane-bounded; vacuole and nucleus are single membrane-bounded
- C. Nucleus and vacuole are double membrane-bounded; chloroplast and lysosome are single membrane-bounded
- D. Vacuole and chloroplast are single membrane-bounded; nucleus and lysosome are double membrane-bounded
Explanation
The correct answer is that vacuoles and lysosomes are single membrane-bounded organelles, while the nucleus and chloroplast are double membrane-bounded. The other options incorrectly pair organelles with their membrane structures. Understanding the basic structure of these organelles is crucial for distinguishing between them.
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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.
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