NURSING EXAM QUESTIONS
MICROBIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They are prokaryotes
|
|
|
They have peptidoglycan in their cell walls
|
|
|
They have a nucleus
|
|
|
Some use photosynthesis
|
Detailed explanation-1: -It is not true to say that bacteria are eukaryotes. All bacterial cells are considered prokaryotic because they lack a nucleus and membrane-bound organelles.
Detailed explanation-2: -Does Bacteria Have a Nucleus? Bacteria cells are prokaryotic cells; therefore, they lack a nucleus. In eukaryotic cells, the nucleus is where the DNA is housed. However, in bacteria cells, the DNA or genetic information is found floating freely in the cytoplasm of the cell.
Detailed explanation-3: -Bacteria do not have a nucleus. Since the nucleus contains DNA, it can be concluded that bacteria do not contain DNA.
Detailed explanation-4: -The nucleus without a nuclear membrane is called the naked nucleus and it is not considered as a true nucleus. So prokaryotic cells don’t have a true nucleus.