GENERAL HISTOLOGY

INTRODUCTION

CELL ORGANELLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How are eukaryotes different from prokaryotes?
A
They aren’t different, except the spelling.
B
Eukaryotes have a NUCLEUS, prokaryotes do NOT!
C
One is a plant cell, one is an animal cell.
D
Prokaryotes have a NUCLEUS, eukaryotes do NOT!
Explanation: 

Detailed explanation-1: -Eukaryotic cells contain membrane-bound organelles (such as the nucleus and mitochondria), while prokaryotic cells do not. DNA in eukaryotic cells is found inside the nucleus, while DNA in prokaryotic cells is located in the cytoplasm. Eukaryotic cells are generally larger and more complex than prokaryotic cells.

Detailed explanation-2: -All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

Detailed explanation-3: -Note that eukaryotic cells likely evolved from a symbiotic relationship between two prokaryotic cells, whereby one set of prokaryotic DNA eventually became separated by a nuclear envelope and formed a nucleus.

Detailed explanation-4: -In prokaryotic cells, the true nucleus is absent, moreover, membrane-bound organelles are present only in eukaryotic cells. Another major difference between prokaryotic and eukaryotic cells is that prokaryotic cells are exclusively unicellular, while the same does not apply to eukaryotic cells.

Detailed explanation-5: -Prokaryotes are always unicellular, while eukaryotes are often multi-celled organisms. Additionally, eukaryotic cells are more than 100 to 10, 000 times larger than prokaryotic cells and are much more complex. The DNA in eukaryotes is stored within the nucleus, while DNA is stored in the cytoplasm of prokaryotes.

There is 1 question to complete.