Sentences with phrase «chemical bonds holding»

When coal burns, the chemical bonds holding its carbon atoms in place are broken, releasing energy.

They and others subsequently showed that ubiquitin then delivers the doomed proteins to the proteasome, a large complex that breaks down the chemical bonds holding proteins together and releases the amino acid building blocks for reuse.

Chemical bonds hold each atom at precise distances from its neighbours, forming a recurring -LSB-...]

Not exact matches

A chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons - or electrostatic forces.

Molecular movies reveal how chemical bonds form and break; ultrafast snapshots capture electric charges as they rapidly rearrange in materials and change their properties; and sharp 3 - D images of disease - related proteins provide atomic - level details that could hold the key for discovering potential cures.

In a hair strand, the keratin molecules are mainly held together by two forces: chemical cross-links between cysteines (a type of amino acid) and weaker hydrogen bonds.

These protein crystals are held together by hydrogen bonds, one of the weakest chemical bonds, and have an important role in defining the mechanical properties of silk.

But the trunk and branches of chemicals often fold up into a more compact shape, requiring additional weaker bonds to hold the shape in place.

«This allows for some deep insight into the nature of chemical bonding — and as Goethe wrote, ultimately what holds the world and its compounds together in its inmost form.»

It is conceived that the fiber as it is produced naturally in the cotton plant or the tree is made up of many ultimate units, held together by some adhesive like lignin and if in place of these, commercial steps could be developed whereby a chemical bond could replace this physical adhesion, the resuit would be a stronger fiber with greater service life.

Invented by Yaghi, COFs and MOFs consist of molecules (organics for COFs and metal - organics for MOFs) that are stitched into large and extended netlike frameworks whose structures are held together by strong chemical bonds.

Men and women rated kissing on the lips as being more intimate than cuddling, hand holding, hugging, and massaging.2 In a study of adolescents and young adults, those who engaged in more frequent kissing had higher levels of relationship satisfaction.3 One reason for this satisfaction boost was because conflict with a romantic partner was easier to resolve when there was more affection, like kissing on the lips, in the relationship.2 Kissing promotes emotional closeness, and partners report that kissing after sex strengthens their bond and that they desire to kiss each other after orgasm.1 This makes sense because kissing may increase levels of oxytocin (aka the «love» hormone), a chemical that promotes bonding.4

Maintaining a physical connection, despite the absence of sexual activity, such as cuddling, hugs, kissing, holding hands, a playful butt tap, or massage, releases positive bonding chemicals in your brain similar to sexual activity.