Question

Statement I -  All prokaryotes have a cell wall, eukaryotes do not.

Statement II – Prokaryotes have a true nucleus, eukaryotes have a primitive nucleus.

A. Both statement I and statement I are correct and Statement II is the correct explanation of statement I

B. Both statement I and statement I are correct and Statement II is not the correct explanation of statement I

C. Statement I is true but statement II is false

D. Both statements I and II are false

Answer 1

Hint: To solve this question, we need to recall all the properties of the cell and also of both prokaryotic and eukaryotic cells which we have read. Basically, Cell is the structural and functional unit of life. Cells are of two types:- prokaryotic and eukaryotic cells. Due to some basic differences in cell organelles, they are divided into two types.

Complete answer:

A cell is the structural and functional unit of a life, which is usually microscopic and consists of cell organelles which are assigned a specific task. The cells are divided into two types due to the difference in some organelles such as the nucleus, cell wall and cell membrane etc. The cells which have a true nucleus and have a membrane bound membrane. Both unicellular and multicellular cells are referred to as Eukaryotic cells. In eukaryotes, vertebrates don't have a cell wall but plants do. The cell walls of prokaryotes differ chemically from the eukaryotic cell walls of plant cells, which are primarily made of cellulose. Eukaryotic cells in vertebrates lack a proper cell wall.

Prokaryotic cells are those that do not have a true nucleus or membrane-bound organelles. The prokaryotic cells are divided into Bacteria and Archaea. Prokaryotes are assumed to rise before the eukaryotes.

So, the correct answer is “Option D”.

Additional Information:

The other difference between prokaryotic and Eukaryotic cells are:-

-Prokaryotic cells have a cell wall where Eukaryotic cells don't.

-Organelles like mitochondria, ribosomes, Golgi body, endoplasmic reticulum, chloroplast, etc. are absent in prokaryotic cells, whereas found in eukaryotic cells.

-Prokaryotic cells are only unicellular whereas the Eukaryotic cells can be both unicellular and multicellular.

-Example of Prokaryotes are Cyanobacteria and that of Eukaryotic cells are protists, fungi

Note: Though they are widely different from each other, they also have some similarities such as they both have ribosome, DNA, plasma membrane, cytoplasm. But Eukaryotic cells are larger than Prokaryotic cells. Eukaryotic cells are generally 10-100 times the size of Prokaryotic cells.