Inside our body, we have both polar and nonpolar molecules, which includes those 20 amino acids mentioned above. Methane is made up of one carbon atom that is bound to four hydrogen atoms: this hydrogen bonding allows the atoms to all share electrons equally, so this smelly molecule has no charge and is nonpolar. Methane gas is an example of a nonpolar molecule that is created during the breakdown of food and released as a gas (or more colloquially, a fart). That means the molecule is polar, or charged, and that charge will then be identified as either a positive or negative charge. When atoms of two different elements connect together, invariably one of them will have the higher charge and attract the most electrons to its end of the joint molecule. These molecules are nonpolar because they have no resulting charge. Two atoms of the same element have equal positivity, so don't have the power to steal electrons from the other. When two atoms bond together, they share electrons. Protons have a positive charge that draws electrons to it, like how opposites attract. If you remember your first taste of high school chemistry, you may remember that atoms have a nucleus of neutral neutrons and positive protons in the middle, and negative electrons swirling all around. Molecules are classified this way based on the charges on the atoms bonded together to form the molecule. That would make nonpolar molecules like cats, better known for avoiding water, no thank you, and cleaning themselves without it. Polar molecules are hydrophilic, meaning "water loving." If you'd like to visualize: polar molecules are like puppy dogs who love water so much that they'll go barreling straight into muddy or smelly water after a tennis ball, with no hesitation at all.
The opposite of a nonpolar molecule is, as you might guess, polar. You know how oil and water don't mix? That's because oil is hydrophobic. The nonpolar molecules we'll be talking about are hydrophobic amino acids, meaning "water fearing" because they don't mix with water molecules. What are nonpolar amino acids? Which are they, and what does "nonpolar" mean? The review of the topic in this article will help explain. Of the 20 common amino acids in the human body that build protein structures, 9 of them are essential (meaning we must eat or otherwise consume them to get them), and half of them are nonpolar.
0 kommentar(er)
