How is a bacterial cell different from an onion peel cell? A. Bacterial cells –prokaryote, onion peel cell-eukaryote B. Onion peel cell-prokaryote, bacterial cell-eukaryotic C. Bacterial cell-contains membranous organelles, onion peel cell-no membranous organelles D. None of these
Hint: The world has started from the primitives having a single cell with the simplest organization. Due to the changes in the environment, the body complexity increased and the organization became tough. These organisms were then placed in the eukaryotes category.
Complete answer: Bacterias are the most primitive organisms known to us. They are the prokaryotic cells. They do not have organelles bounded with membranes as they do not have a complex body. They even lack membrane around the nucleus. Onion cell is a eukaryotic cell with well-defined membranes around the organelles. It also has a well defined and membrane nucleus. > Option A: Bacterial cells –prokaryote, onion peel cell-eukaryote: It holds the statement right that the bacterias are prokaryotes due to their primitive nature while the onion peel cells are eukaryotic. > Option B: Onion peel cell-prokaryote, bacterial cell-eukaryotic: It is a wrong statement as the onion peel cell is not prokaryotic rather it is eukaryote and the bacterial cells are prokaryotes. > Option C: Bacterial cell-contains membranous organelles, onion peel cell-no membranous organelles: Bacterial cell being a prokaryote has a primitive form of the body, which shows no membranes around the organelles and the nucleus. So the statement becomes wrong. The onion peel cell has membranous organelles and nucleus.
So the answer is option A: Bacterial cell-prokaryote, onion peel cell-eukaryote.
Note: The onion peel cells are to protect the fruit from any harm. It is usually studied by the students due to its transparency and structural easiness. We can see a large vacuole in them. It is prominent and in the centre of the cell. Bacterial cells lack vacuole. Bacterias occur in all shapes and sizes. They are mostly unicellular.