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
1. What percentage of trees are found in the taiga &amp; how much<br> oxygen do they help replace?
sladkih [1.3K]

Answer:

17%. They create 21% of the oxygen

Explanation:

Just used the search engine

8 0
3 years ago
How many coyotes are there in Colorado in 2020?
kvv77 [185]

There are many coyotes still existing in Colorado even though more than 500,000 coyotes are killed every year.

<u>Explanation:</u>

Coyotes are canine native to North America. It is smaller than it's close relative, the gray wolf and slightly smaller than the closely related eastern wolf and the red wolf.

In Colorado, coyotes are classified as a game species and may be taken year round with either a small game or a fur bear license. Landowner may kill coyotes without a license, on their land if their land or livestock is threatened by the coyotes.

8 0
3 years ago
The created "kinds" like "species" is not easy to define. true? false?
jenyasd209 [6]
It is a completely true statement that the <span>created "kinds" like "species" is not easy to define. The correct option among the two options that are given in the question is the first option. I hope that this is the answer that you were looking for and the answer has actually come to your desired help.</span>
4 0
4 years ago
Read 2 more answers
Describe how the same signal molecule (i.e., a hormone or neurotransmitter) can induce different types of effects in different c
Leto [7]

Answer:

it Changes according to the receptor.

Explanation:

Every cell has different receptors in the membrane, these receptors are specific, but different receptors can read one signal molecule, according to the receptor, this molecule can activate or inactivate different path ways.

Let me put it this way, if I give the same message to a botanist and a gardener they both are going to read it in different way even knowing it is the same.

6 0
3 years ago
What is the effect of tsh and where is it produced?
Naddik [55]
4.9% as of january 2016
3 0
3 years ago
Other questions:
  • Please help!!
    13·2 answers
  • Difference between aerobe and anaerobe?<br> Simple quick definitions real quick! Will upvote! &lt;3
    6·1 answer
  • The Clean Water Act does not ensure high water quality throughout the nation because it does not _____.
    14·2 answers
  • Assume that a deletion mutation occurs within the trp operon so that the DNA corresponding to the last (distal) part of region 1
    7·1 answer
  • Which of the following is a divergent boundary?​
    8·1 answer
  • PLEASE ASAP! GIVING BRAINLIEST!
    14·2 answers
  • Read each case file and fill in a cytogenetics report form for each case file.
    12·1 answer
  • 20 points for each valid answer, thanks
    8·1 answer
  • Two of the uncontrollable risk factors of cardiovascular disease are weight and age.
    11·1 answer
  • You are preparing to use a reverse transcriptase to create cDNA from a sample containing purified mature eukaryotic mRNA. If you
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!