GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Choose all parts that BOTH prokaryotic and eukaryotic cells have.
A
cell membrane
B
cytoplasm
C
nucleus
D
ribosomes
E
gel-like capsule
Explanation: 

Detailed explanation-1: -Prokaryotes and eukaryotes are the two different types of cells. Eukaryotic cells contain membrane-bound organelles, such as the nucleus, endoplasmic reticulum, mitochondria while prokaryotic cells do not but the ribosome is the only organelle that can be seen in both prokaryotic and eukaryotic cells. More items

Detailed explanation-2: -Both eukaryotic and prokaryotic cells contain many ribosomes; however the ribosomes of the eukaryotic cells are larger than prokaryotic ribosomes i.e. 80S compared to 70S.

Detailed explanation-3: -Ribosomes are found in both prokaryotic and eukaryotic cells.

Detailed explanation-4: -The cells of all prokaryotes and eukaryotes possess two basic features: a plasma membrane, also called a cell membrane, and cytoplasm. However, the cells of prokaryotes are simpler than those of eukaryotes. For example, prokaryotic cells lack a nucleus, while eukaryotic cells have a nucleus.

Detailed explanation-5: -Both eukaryotic and prokaryotic cells have ribosomes freely floating in their cytoplasms, known as free ribosomes. In eukaryotes, ribosomes begin in the nucleolus, where ribosomal RNA is synthesized and bound there. They are then exported to create ribosomes; in prokaryotes this process is completed in the cytoplasm.

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