Question

What are some nonpolar covalent bond examples in living things?

Answer 1

Some examples are: `CO_2`, `O_2`, `CH_3` DNA, non-polar amino acids

Explanation:

Covalent bonds are common in the molecules of living organisms. This bonds are created is by sharing electrons. The more electrons they share the stronger the bond will be.
Non-polar covalent bonds appear between two atoms of the same element or between different elements that equally share electrons.

• `O_2` and `CO_2`
  `O_2` is non-polar because the electrons are equally shared between the two oxygen atoms. The same case is with `CO_2`.
  https://s3-us-west-2.amazonaws.com/courses-images/wp-content/uploads/sites/110/2016/05/02211833/Figure_02_01_11jpg
  Breathe in and out! When you inhale, `O_2` comes in your lungs, and when you exhale, `CO_2` goes out. This process happens because `CO_2` and `O_2` are nonpolar molecules.
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• `CH_3`
  Our intestinal gas/ flatus is produced as a byproduct of bacterial fermentation in our colon.
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  Click here for: Why is `CH_4` a non-polar molecule?
  https://s3-us-west-2.amazonaws.com/courses-images/wp-content/uploads/sites/110/2016/05/02211833/Figure_02_01_11jpg

• DNA
  Each strand of the DNA is polar, but each strand with its polarity neutralizes the molecule of the DNA in total.
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• NON-POLAR amino acids `->` their R-groups, white on the picture below, hydrocarbon alkyl groups (alkane branches) or aromatic rings, exception: benzene ring in the amino acid Tyrosine which is polar. Aminoacids are monomers that form proteins.
  Alanine, Cysteine, Glycine, Isoleucine, Leucine, Methionine, Phenylalanine, Proline, Tryptophan, Valine

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