EVOLUTION
THE ORIGIN OF LIFE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It is a form of a living cell with ribosomes
|
|
|
It is a form of a living cell with DNA
|
|
|
It is a form of a living cell with RNA
|
|
|
It is a form of a living cell without ribosomes
|
Detailed explanation-1: -A protocell (or protobiont) is a self-organized, endogenously ordered, spherical collection of lipids proposed as a stepping-stone toward the origin of life.
Detailed explanation-2: -Also known as protobionts, they are defined as a spherical aggregations of non-living components (e.g., lipids), which can self-organize themselves into endogenously ordered structures. Interestingly, even though protocells are not living organisms, their features show that they are akin to biological cells.
Detailed explanation-3: -Formed from the aggregation of abiotic components, protocells are the precursors to modern living cells. Despite being non-living, protocells display characteristics akin to biological cells.
Detailed explanation-4: -Schematic diagram of a protocell. Assembly of lipid vesicles bound by single bilayer membranes composed of amphiphiles, genetic material (e.g. DNA or RNA) and other cellular components (e.g. proteins) in a bottom-up approach to building a protocell.
Detailed explanation-5: -These membranous droplets, called protocells, were presumed to be the first cells. Modern scientists believe, however, that protocells do not carry any genetic information and lack the internal organization of cells. Thus the protocell perspective is not widely accepted.