3.) Hydrogen bonding plays an important role in many organic...

3.) Hydrogen bonding plays an important role in many organic molecules, including the synthetic fiber nylon. Nylon is a polymer, a large organic molecule composed of repeating smaller units called monomers that are covalently bonded together. Nylon is a polyamide because its carbon backbone contains many amide units. A given molecule of nylon contains many thousands of atoms; only a portion is shown below. Note: nonbonding electrons are not shown. Assume the appropriate number are there for an octet. The long chains of nylon are held together by hydrogen bonding interactions. These intermolecular forces help strengthen the nylon fibers. Draw a second molecule of nylon below the first one above and show three hydrogen bonding interactions between the two molecules (used dashed lines). Be sure to indicate which individual atoms are interacting. H nylon H N N N N H H

Transcript

00:01 Hello, my name is mistique and in this video i'm going to be breaking down some text and answer the questions.

00:07 So hydrogen bond is a type of dipole -dipo interaction which is formed with an electrow negative positive, i'm sorry, an electropositive hydrogen and hydrogen atom, which bonds with a strongly electrical negative.

00:21 Like in the case of water, you can have hydrogen bonding, electro -negative atom or even a fluorine or nitrogen -adam of the citizens.

00:31 In addition to its other important functions, it is famous for forming the double -stranded form of dna by holding two strands together.

00:38 So we know that g will bond to c.

00:44 It's like three hydrogen bonds there and a2 to t.

00:51 What would happen if no hydrogen bonds, if there were no hydrogen bonds in between the dna strands, but covalent bonds? so what if these were actually covalent or ionic bonds? what type of solutions could the sales evolve to solve this problem? so the first thing i thought about are enzymes.

01:11 So, you know, enzymes are constantly rearranging and undoing and doing things.

01:17 So if it's a bond that needs to be, you know, broken down, you can hydrolyze it with water.

01:23 So hydrolaze could do that.

01:25 So yeah, so enzymes are a possible solution.

01:29 This problem to just break the bonds down.

01:32 And of course, that's going to cost the cell energy, but that seems like a way that the bonds could be broken or rearranged in order to be loose for replication and things like that.

01:48 All right.

01:50 So a membrane that spans the entire membrane has 1 ,000 amino acids.

01:54 One part of the protein first is the external aqueous environment, so we know that would probably be polar and hydrophilic.

02:06 Another part faces the cytoplasm.

02:09 So the part that faces the cytoplasm will probably be hydrophobic and non -polar.

02:20 While the remaining parts is embedded in the membrane.

02:24 Okay, so amphiphytic, i'm sorry, amphipathic will be embedded in the membrane because it has both of those hydrophobic and hydrophilic interactions.

02:35 So the fifth amino acid of the protein is found on the external surface.

02:38 Of the membrane.

02:40 So once again, we're thinking it's polar or charged.

02:43 It interacts with aqueousin virus outside.

02:47 Excuse me.

02:49 Amino acids 25 and 20 and 20 and 205 are conveniently bonded to each other and are required to give the protein this three -dimensional shape.

02:59 So what could it possibly be? it could possibly be a sulfite bridge.

03:05 That's a possibility...

Question

Please give Ace some feedback