CELL STRUCTURES AND FUNCTION
CELL ORGANELLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yes, all cells have a nucleus.
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No, only eukaryotes have a nucleus.
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No, only prokaryotes have a nucleus.
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No, none of the types of cells contain a nucleus.
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Detailed explanation-1: -While eukaryotic and prokaryotic cells both contain cytoplasm and a membrane that encloses the contents of the cell, only eukaryotes possess a membrane-bound nucleus. Prokaryotes, by contrast, have cells without a nucleus. Instead, prokaryotic cells possess a nucleoid region, which is not bound by a membrane.
Detailed explanation-2: -DNA is the genetic material in all eukaryotic and prokaryotic cells. Eukaryotic cells have a well-defined nucleus within which the genetic material is present.
Detailed explanation-3: -The answer to this is no, not all eukaryotic cells will have just a single nucleus. Some eukaryotic cells will form what is called a syncytium, where multiple nuclei will be found within the cell’s cytoplasm.
Detailed explanation-4: -The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus. The nucleus is where cells store their DNA, which is the genetic material. The nucleus is surrounded by a membrane. Prokaryotic cells do not have a nucleus.
Detailed explanation-5: -Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).