GENERAL HISTOLOGY

INTRODUCTION

MICROSCOPE PARTS MAGNIFICATION RESOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of cell evolved first?
A
Prokaryote
B
Eukaryote
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes-endosymbiosis-is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.

Detailed explanation-2: -The first organisms to evolve on earth were bacteria. They come under the category of prokaryotic heterotroph.

Detailed explanation-3: -Prokaryotes came first, with speculations stating that they appeared at least 3.8 billion years ago. Prokaryotes are underdeveloped cells, undifferentiated organelles with no nuclei. They have circular DNA. It suggests that prokaryotes evolved first.

Detailed explanation-4: -The first cells were most likely primitive prokaryotic-like cells, even more simplistic than these E. coli bacteria. The first cells were probably no more than organic compounds, such as a simplistic RNA, surrounded by a membrane.

Detailed explanation-5: -Prokaryotes are the simplest organisms. The first cells and organisms to evolve would be classified as prokaryotic.

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