Which of the following cells does not have a nucleus?
Correct answer: D. Red Blood cell
- A. Muscle cell
- B. Nerve cell
- C. White Blood cell
- D. Red Blood cell
Explanation
Unlike most other eukaryotic cells, mature red blood cells don't have nuclei. When they enter the bloodstream for the first time, they eject their nuclei and organelles so, they can carry more hemoglobin, and thus, more oxygen. Each red blood cell has a lifespan of around 100-120 days.
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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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