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
malfutka [58]
3 years ago
14

A new life form was discovered on Mars, one based upon Silicon instead of Carbon. Explain what properties Silicon has that allow

life to be based upon it? Explain fully for full credit. Use the periodic table to help.
Biology
1 answer:
Vesna [10]3 years ago
3 0

Group IV of the Periodic Table of the Elements contains carbon (C), silicon (Si) and several heavy metals. Carbon, of course, is the building block of life as we know it. So is it possible that a planet exists in some other solar system where silicon substitutes for carbon? Several science fiction stories feature silicon-based life-forms--sentient crystals, gruesome golden grains of sand and even a creature whose spoor or scat was bricks of silica left behind. The novellas are good reading, but there are a few problems with the chemistry.

<span>
CRYSTALLINE CREATURES? Silicon can grow into a number of lifelike structures, but its chemistry makes it unlikely that it could be the basis for alien life-forms.</span>

Indeed, carbon and silicon share many characteristics. Each has a so-called valence of four--meaning that individual atoms make four bonds with other elements in forming chemical compounds. Each element bonds to oxygen. Each forms long chains, called polymers, in which it alternates with oxygen. In the simplest case, carbon yields a polymer called poly-acetal, a plastic used in synthetic fibers and equipment. Silicon yields polymeric silicones, which we use to waterproof cloth or lubricate metal and plastic parts.

You might be interested in
List molar concentrations (0.0 M, 0.2 M, etc.) at which water entered the potato strips. Why did water move into the potato stri
kati45 [8]

Answer:

- Water entered the potato strips because the potato cells contained higher concentration of solutes than its external environment.

- The solutions are hypotonic to the solution in the potato cells.

Explanation:

According to osmosis, water will move from a region where it is high in concentration to that region where it is low in concentration. However, a region with high solute concentration contains a low water concentration and vice versa.

Hence, according to this question, water is said to move into potato strips from solutions of molar concentrations like 0.0M, 0.2M etc. Water moved into the potato strips because potato cells contained higher concentration of solutes than its external environment. This means that the external solutions are HYPERTONIC i.e. low in solute concentration to the solution in the potato strips.

8 0
3 years ago
For mitochondria where an uncoupler for oxidative phosphorylation is present, which statement is TRUE?
olga nikolaevna [1]

Answer:

The correct answer is statement d.

Explanation:

In oxidative phosphorylation that takes place in mitochondria, the uncouplers prevent the coupling in between the phosphorylation reactions and electron transport, and therefore, prevent the synthesis of ATP without influencing the ATP synthase and respiratory chain.  

The uncoupler always exhibits its influence on the synthesis of ATP. The 2,4-dinitrophenol functions as an uncoupler at the time of oxidative phosphorylation. The NADPH and FAD functions as an electron carrier.  

3 0
3 years ago
Okokokookokokokokokokoko
fiasKO [112]
Hihihihihihihihihihihihihihihihihi
6 0
3 years ago
A lung or swim bladder, which helps the body create a balance between sinking and floating by either filling up with or emitting
oksano4ka [1.4K]

Answer:

yes it helps controll  the fishes depth

Explanation:

8 0
3 years ago
4- Jamie does an experiment. She charges a pencil by rubbing it with a piece
lyudmila [28]

Answer:

More info given below.

Explanation:

This attraction occurs as a result of static charge. You see an atom is referred to as the smallest particle of a substance; and when an atom gains or looses electrons it becomes unstable creating a difference in potential. However in this case rubbing induces friction which induces heat. This heat excites the atom to loose electrons creating a negative charge on the silk and a converse positive charge on the pencil.

3 0
3 years ago
Other questions:
  • Plants use osmosis to transport water from the soil into their roots.
    9·1 answer
  • If you were to expose glucose to oxygen on your lab bench, why would you not expect to see it burn?
    5·2 answers
  • 3. What percentage of plants makes up the angiosperm group?
    15·2 answers
  • How are fossils related to climate change
    14·1 answer
  • In the process of genetic engineering, what is the correct order of the steps?
    15·2 answers
  • Which of the following is a part of the cell theory?
    14·1 answer
  • ​The nervous system is to ____ as the endocrine system is to ____. ​growth and development; sleep and hunger ​sleep and hunger;
    6·1 answer
  • Can somebody help me
    6·1 answer
  • Water can move freely through the membrane from a higher to a lower concentratio in a transportation process called ____.
    7·1 answer
  • Help please due in twenty minutes. Will mark branliest
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!