What are some nonpolar covalent bond examples in living things?

1 Answer
Jan 22, 2018

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.
    www.bioweb.lu

  • #CH_3#
    Our intestinal gas/ flatus is produced as a byproduct of bacterial fermentation in our colon.
    doctordaliah.files.wordpress.com
    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.
    images.slideplayer.com

  • 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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