Asked in Biology, Microbiology, Acids and Bases
What are some examples of molecules that have both hydrophobic and hydrophilic properties?
lipids: phospholipids are an example because their "head" is hydrophilic and their "tail" is hydrophobic ...
Asked in Human and Animal Interaction, Health, Biology
What are some examples of hydrophilic molecules?
Easy ones are any common ionic molecules IE salt (NaCl) and Sodium Hydroxide (NaOH). If your looking to go farther into the idea look into animal cell walls they are a good representation of the uses of hydrophilic and hydrophobic interactions within the phospholipid bi-layer. ...
Asked in Microbiology, Genetics, Biotechnology
Principle of salting out method for genomic DNA isolation?
Th There are hydrophobic amino acids and hydrophilic amino acids in protein molecules. After protein folding in aqueous solution, hydrophobic amino acids usually form protected hydrophobic areas while hydrophilic amino acids interact with the molecules of solvation and allow proteins to form hydrogen bonds with the surrounding water molecules. If enough of the protein surface is hydrophilic, the protein can be dissolved in water. When the salt concentration is increased, some of the water molecules are attracted by the salt ions, which decreases the number...
Asked in Chemistry
What is the principle of salting out?
There are hydrophobic amino acids and hydrophilic amino acids in protein molecules. After protein folding in aqueous solution, hydrophobic amino acids usually form protected hydrophobic areas while hydrophilic amino acids interact with the molecules of solvation and allow proteins to form hydrogen bonds with the surrounding water molecules. If enough of the protein surface is hydrophilic, the protein can be dissolved in water. When the salt concentration is increased, some of the water molecules are attracted by the salt ions, which decreases the number...
Asked in Genetics
What are some charactercistics that describe the phospholipid molecule?
The most notable characteristic is amphipathicity, meaning it is hydrophilic on one end and hydrophobic on the other. This allows it to form a bilayer, of which cell membranes are made. If a molecule were to cross through the membrane, it would need to diffuse through a hydrophilic region, a hydrophobic region, and another hydrophilic region, which is difficult for most molecules. This is why the phospholipid bilayer is a good way to separate a cell from its environment. ...
Asked in Science, Chemistry, Genetics
What is in a substance that makes it hydrophobic?
Substances are hydrophobic because they are nonpolar. Nonpolar molecules are made up of elements with little difference in their electronegativities so they do not have charges or partial charges. Water is a polar molecule so it tends to be attracted to other molecules that are polar as well. This is often summed up as "like attracts like". Some examples of hydrophobic molecules include fats and oils which are nonpolar because they have large hydrophobic hydrocarbon chains. ...
Why does milk curd?
Bacteria in the milk produce acid. This lowers the pH of the milk and disrupts the structure of the proteins in. Because some proteins are hydrophilic (soluble in water) and others are hydrophobic (insoluble in water), the proteins aggregate into clusters where the hydrophobic proteins are found in the core, and the hydrophilic ones are found on the surface. These clusters are called curds. ...
Asked in Science, The Difference Between
What is the difference between hydrophilic and Hydro phobic?
Hydrophilic substances incline to get together with polar substances like water or some ions while hydrophobic substances tend to get together with nonpolar substances like organic compounds. You can understand these identities by imagining that the more two substances are likely in polarity, the eaiser they get together, because they are fit in electic charges so that the energy of the mixture system is lower. Though this theory is rough, hope it can help you underdstand the the difference between hydrophilic and hydrophobic. ...
Asked in Biochemistry
Are enyzems hydrophilic or hydrophobic?
Enzymes, being proteins, are made of many amino acids of which some are hydrophobic. These hydrophobic amino acids tend to shun water and fold into the interior of the protein enzyme. Enzymes are in solution so the hydrophobic sections would be away from the solution on the inside and the hydrophillic amino acids would tend to be on the outside of the enzyme. So, is a limited sense, you could say enzymes are hydrophyllic ...
Asked in Science
Why will water form droplets on a smooth surface such as a counter top?
Some materials are hydrophilic, which means they tend to attract water, and some materials, like your counter top, are hydrophobic, which means they tend to repel water. ...
Why is the cell membrane called semi-permeable?
The cell membrane is hydrophilic outside and hydrophobic from inside thanks to the phospholipid. The membrane also contains protein gated channels which allow some molecules to pass through and ion channels. The transport in an out of cells is also controlled by osmotic pressure, the electric charge etc. ...
Asked in Genetics
How can some organisms sustain life in the absence of oxygen at the molecular level?
The cell membrane contains many integral membrane proteins, which pepper the entire surface. Integral proteins are the most abundant type of protein to span the lipid bilayer. They interact widely with hydrocarbon chains of membrane lipids and can be released by agents that compete for the same nonpolar interactions. Integral proteins span the membrane and have a hydrophilic cytosolic domain, which interacts with internal molecules, a hydrophobic membrane-spanning domain that anchors it within the cell membrane, and a hydrophilic extracellular that interacts with external...