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
tangare [24]
3 years ago
13

Some have speculated that the origin of life occurred at geothermal vents. amino acids can form there. compared to the amino aci

ds used in living things, what is the problem with the amino acids formed near these vents?
Biology
1 answer:
cluponka [151]3 years ago
3 0

There are a number of amino acids that have formed under certain environmental conditions if the required elements are present and the energy conditions ar compatible with chemical assembly. These conditions have also allegedly formed amino acids on meteors, asteroids and comets.


But, amino acids are a very minor component of more complex biochemical assemblies required for life. Pentose sugars are also required, which form under different environmental conditions than amino acids. More importantly, only left-handed homochiral amino acids and right-handed homochiral sugars can form functioning biochemical assemblies that are viable in an organism. But, natural conditions, like hydrothermal vents only produce racemic versions of sugars and acids, meaning they are always approx. 50% left and right handed. This is fatal to forming viable biochemical assemblies.


Further, it is not possible for all of the 20+ homochiral amino acids needed for a living organism to form naturally. The only ones found have been the simpler amino acids. Also, the 4 critical nucleotide amino acids, C, G, A, T, do not form naturally, are not homochiral, nor in the right proportions.


The geo/hydrothermal vent conjecture is nonsensical. These are open systems, susceptible to currents, mineral contamination, salinity, ph, and temperature, making them a totally unacceptable environment for the precise and exact placement of elements to assemble to form life.

You might be interested in
Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited. W
Volgvan
In this question, there are no options given to choose from. So i would answer this question based on my knowledge. The most likely cause of the observed variation is adaptation and evolution. The birds of that island adapted to the food source and then they evolved as per the requirement of the place and food source.
5 0
3 years ago
Thigmotropism is a plants growth response to ____.
n200080 [17]
Light aka the sun I know for a fact
8 0
3 years ago
Read 2 more answers
Biological fitness definition
nikklg [1K]
Biological or "Darwinian" fitness is being able to live long enough to reproduce and keep the population or species alive.
3 0
3 years ago
Deana is studying the karyotype of an unknown human donor. She observes that in each of the chromosome pairs, the two chromosome
Natasha2012 [34]

A) THE DONOR IS FEMALE

3 0
3 years ago
HELP PLEASE
nignag [31]

Answer:

c

Explanation:

The salinity of the water is increased.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which term describes the chromosomal abnormality of having extra chromosomes?
    11·2 answers
  • 3 ways humans have cut and frayed the woven tapestry of earths biodiversity
    13·1 answer
  • Where are egg cells produced? (2 points)
    7·2 answers
  • Excercise have no positive effects on the nervous system true or fale
    13·1 answer
  • Please answer this question!!!
    6·1 answer
  • What are the tree types of symbiotic relationship
    9·2 answers
  • What would happen if a cell didn’t have a cytoskeleton
    15·1 answer
  • 7. Normal color vision in the human is due to a dominant gene, C, and is x-linked. The recessive form of the gene, c, causes the
    8·2 answers
  • Asking ........ and defining ...........
    11·1 answer
  • Plant conduct which of the following processes
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!