Question

State whether the following statements are true or false.
Bacterial cell has a true nucleus.
A) True
B) False

Answer 1

Hint: Bacteria are single celled organisms. They do not have well defined nuclei. Genetic material is freely present in the cell. They do not have nuclear membranes. Bacteria are prokaryotic organisms. True nucleus is found in eukaryotic organisms.

Complete answer:
Bacterial cells are single celled organisms that can only be seen by microscope only. They have the ability to survive in diverse environments. These organisms can have different habitats like soil, the ocean and inside the human gut. They are classified as prokaryotes that mean they do not have membrane bound nucleus. They have a simple internal structure that lacks a well defined nucleus. The genetic materials are present freely in the cytoplasm. DNA can float freely in the nucleoid, or in separate, circular pieces. Proteins are assembled in the ribosome. Bacterial cells have an outer cell wall and an inner cell membrane. Some of the bacteria have capsules, as the third protective layer. They reproduce asexually mostly by the process of binary fission. The DNA of parents and offspring is exactly the same. Clones are formed by this. Variation occurs in DNA by integrating additional DNA.
From the above information we know that bacteria are prokaryotes so they do not have a true nucleus.

Therefore the given statement is false.

Note: Mycoplasmas are certain bacteria which do not have a cell wall at all. Organisms which have true nucleus are called eukaryotes. ‘Eu’ means true and karyon means nucleus. These organisms have well defined nuclei. It has a nuclear envelope and all the genetic material present inside it. Nucleus has nucleoplasm separated from cytoplasm. Plants and animals are eukaryotic organisms.