Question

2. Which of the following is INCORRECT about
prakaryotic cell.
A)Membrane bound
cen organelles are absent
B) Nuclear membrane
present around the genetic
material.
c)cyanobacteria is a prokaryotic cell.
D)Membrane less
less Ribosome are present.​

Answer 1

Answer:

B) is the right answer I am not totally sure but this must be right

Answer 2

Nuclear membrane present around the genetic material.

ANSWER:

Option B is incorrect with respect to prokaryotic cell.

REASON:

Nuclear membrane is present around the genetic material in case of eukaryotic cell

PROKARYOTIC CELL:

• The cells which do not have well defined nucleus are called prokaryotic cells .

• They do not have membrane bound cell organelles.

• The genetic material of prokaryotic cells are concentrated in the centre of the cell as nucleoid.

• Nuclear membrane is not present around them.

• These cells have cell wall, cell membrane , locomotory structures and ribosomes.

• The locomotory structures may be cilia or flagella.

• Ribosomes are of 70 s type and are not bounded by any membrane.

• Some prokaryotes have infolding of plasma membrane forming a structure called mesosome.

• Mesosome helps in secretion, respiration and DNA replication during cell division.

• The cell wall is present in majority of prokaryotes and they are non cellulosic in nature.

• The prokaryotic organisms come under a seperate kingdom called Monera.

• Example of prokaryotes are bacteria, cyano bacteria or blue green algae , mycoplasma, etc.

• The prokaryotes show their existence in variety of habitats. They have wide range of nutritional diversity.