1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelechka [254]
3 years ago
14

Scientists originally thought cell membranes evolved before RNA. However, recent evidence suggests RNA developed before the memb

ranes that envelop it. Explain why this is logical in light of the composition and function of both RNA and membranes.
Biology
1 answer:
Darya [45]3 years ago
3 0

Answer:

The need for replication, specialization, compartmentalization is key to understand that RNA evolved first

Explanation:

Logical contrast considering a certain catalytic activities of cardinal importance in the early evolution of life ;

• using an RNA molecule that is involved in to catalyzing the process of templated polymerization –selecting a random RNA molecule as a template.

• the ribozyme activity in this process must have engaged an in vitro process in a body part that no longer has a function such that it that can only synthesize moderate lengths of RNA

• when this molecules acts on the copies of itself can replicate

• when it acts on copies of other type of RNA molecules in its surrounding he can promote their replication

• a cooperative system might have evolved from the neighbors to help the survival of this friendly RNA molecules – through catalytic actions, such that a set of different types of RNA molecules evolves with a mark of specialization for different activity.

The development of individual compartments is proposed to be akin to the effective self-replicating systems.

• If RNA molecules are mutually beneficial they may serve the purposes of being specialized for templated polymerization.

• If these RNAs were free to diffuse among a large population of other RNA molecules, they could be assimilated into an established group by other replicating systems, which in turn may compete with the original RNA system for raw materials.

• The quality of the self-replicating systems they generated relies on the compartment that restricts the RNA molecules only to the system they serve.

• compartments started simply and perhaps had simple adsorption on surfaces or simple particles.

• compartmentalization became complex requiring a class of small molecules with varying physicochemical properties liike being amphipathic.

• This gave rise to the phospholipids mainly and the present-day cells often are coated by a plasma membrane consisting of amphipathic molecules in this configuration.

You might be interested in
What organelles are sometimes attached to the endoplasmic reticulum and are responsible for building proteins?
olga2289 [7]
Ribosomes... ....is the orgenelle
4 0
3 years ago
Plants use sunlight to convert nutrients into energy. What form of energy transfer is taking place?
krok68 [10]

Answer:

Osmosis is the form of energy.

..

7 0
3 years ago
Which of the following prevent uncontrolled cell growth (cancer)?
Nana76 [90]
Check points throughout the cell cycle that determine when the cell should begin the next phase
5 0
3 years ago
A skeletal system of animals provides structure and support, which cell part provides a similar function in the cell?
True [87]
A cell wall is like a skeleton
5 0
3 years ago
Read 2 more answers
Which part of the plant must be fertilized in order for a fruit or vegetable to grow
svlad2 [7]

The sepal of the plant... im pretty sure...

6 0
2 years ago
Other questions:
  • 20. What condition is required for ATP synthase to move hydrogen down its gradient? A. More ATP molecules ahead of the hydrogen
    7·2 answers
  • WATER CYCLE QUESTION WITH PICTURE NEED HELP
    12·1 answer
  • Slowing signals between neurons is a function of __________.
    15·2 answers
  • Does fusion take place in the suns core
    15·1 answer
  • what do some of your cells do to keep facilitated diffussion operating while transferring glucose into the cell?
    15·2 answers
  • Which of these is most likely to happen as a result of the solar flare?
    12·2 answers
  • Summarize the role of meiosis in the human life cycle vs the role of mitosis.
    5·1 answer
  • During the Cretaceous-Paleogene extinction approximately _______ of all life forms on Earth became extinct.
    7·1 answer
  • The _____ is about determining if you are the way you are because of your genes or because of your upbringing.
    10·2 answers
  • What factors do the kingdoms protista, plantae, fungi, and animalia have in common?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!