Question

Do Bacteria Cells Have Nucleus?​

Answer 1

$\bold{No}$ , Bacteria have not nucleus.

They are considered to be the $\bold{prokaryotes.}$

$\underline\bold{Prokaryotes:-}$

● The cell having nuclear material without a nuclear membrane around it.

●Pro-Primitive Karyon-Nucleus.

●They are simple unicellular organisms.

●For example:- Bacteria , Blue-green algae.

Let's Recall What is $\bold{Cell}$ and $\bold{Nucleus?}$

$\underline\bold{Cell:-}$ Cell is smallest , structural and functional unit of life.

$\underline\bold{Nucleus:-}$ It is a large special organelle present at the centre of the cell.

Function of it :- ● It controls all activities of the cell.

●It is separated from cytoplasm by nuclear membrane.

== Nucleus contains four main components:-

(i) Nuclear Membrane
(ii) Nucleoplasm.
(iii) Nucleolus
(iv) Chromosomes

Answer 2

$\huge\bold{ANSWER:-}$

No, Bacteria doesn't have nucleus

$\huge\bold{Explanation:-}$

➡️It is so because they are prokaryotes

PROKARYOTES:-

➡️It is present in unicellular organisms

➡️It lacks nucleus, mitochondria, or any other membrane-bound organelle

➡️The word prokaryotic means "primitive" in Greek Language

➡️For eg:- Bacteria

NUCLEUS:-

⏩It is a dense structure located in the centre of the animal cell and towards the cell membrane in the plant cell is called nucleus

⏩It is spherical in animal cell but becomes oval in plant cell because exerted by vacuole against the cell membrane

⏩ Normally, a single nucleus is present in most of the cells but some cells like Paramecium contains 2 cells

⏩Some cells lacks nucleus at maturity

⏩Eg:- RBC cells in mammals

NUCLEAR MEMBRANE:-

⏩ Nucleus is covered by a double membrane which separates Nucleus from the cytoplasm

⏩It's not continuous and is characterised by pressure of a number of openings called Nuclear pores

⏩These pores allow in the exchange of the material between the Nucleus and the cytoplasm