Biochemistry Notes

Amino acids can be joined via a peptide bond. And each time we do that, on three separate occasions, what we end up doing is to create instead of this is to create a covalent bond between these two. Obviously, depending on the distance between them.

Sex hormones and the survival benefit of amenorrhea. Article What Is a Peptide? Article Chemosynthesis Definition and Examples.

Glucose, a monosaccharide. Form backbone of some hormones.

And, in fact, if we talk about an ionized acid, normally in the absence of ionization there would be a net zero charge right here. This note explains the advanced treatment of the biochemical mechanisms that underlie biological processes.

Antibodies are an example of proteins that attach to one specific type of molecule. Just to indicate to you that the hydrogen atoms are not really the possession, the ownership of one molecule of water.

And, as we'll see over this lecture and the next one, these hydrophobic and hydrophilic tendencies tend to have great affects on the overall behavior of molecules. Sugar can be characterized by having reducing or non-reducing ends. What happens when a strong base enters the blood stream? Monosaccharides are simple sugars with a carbon backbone of three to seven carbon atoms.

And this has strong affects. Here's our old friend the basic amino group. What happens when a strong acid enters the blood stream? As an example, the important blood serum protein albumin contains amino acid residues. There are other pairs of molecules which are relatively equally electronegative.

What happens is that because of various steric and thermodynamic forces it likes to cyclize. And because of those two reasons it turns out that this molecule doesn't like to be in water. List Nitrogenous Bases - Definition and Structures.

AK Lectures - Biochemistry

This part of biochemistry is often called molecular biology. But, in fact, this energy, the energy of a covalent bond is so much higher that it's highly unlikely that thermal energy is going to break apart a preexisting covalent bond. But it's also nicely hydrophilic. And the questions is, can they go from one side of the membrane to the other?

Easybiologyclass

And, therefore, as a consequence it's called a hexose. Repressible a The product is the regulatory metabolite. But once mammals are weaned there's no reason on earth for them to continue to make lactase, in their stomach for example. Article What Is Fermentation?

Chemical Heritage Foundation. The amino acids may then be linked together to make a protein. How many people here are lactose intolerant? For example, potassium is at high levels inside cells, sodium is at high levels outside cells, just to site some arbitrary examples.

Lecture 2 Biochemistry 1

And a dislike of water is often called its hydrophobicity, or we often call it hydro, might as well spell it right, hydrophobic, i. And here we see this space filling model. And then, for the rest of their lives, whenever they have a milk containing product, in fact, my son is also lactose intolerant. All enzymes are composed of protein.

Principles of Biochemistry Lecture Notes

And this group up here is, once again, this happens to be a serine which is an amino acid, this also happens to be quite hydrophilic. How have all of the macromolecules been assembled?

Because on one end of it, it loves to be in water, the other end of it hates to be in water. Now, as a consequence of these rather conflicted feelings that these molecules have about water, we can ask the question what happens when we put such molecules actually into water? Here's the carboxyl group. He confirmed that fatty acids reduce oxidation of sugar by the muscle.

The Chemistry of Plant Life. She's otherwise very nice. For example, here, if we have a carbon and a hydrogen, these two atoms are roughly equally matched in terms of their ability to pull electrons away, one from the other. Ideally there should be no charge on this molecule.

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Wikimedia Commons has media related to Biochemistry. Today, noori nastaliq fonts the terms molecular biology and biochemistry are nearly interchangeable. But this has important consequences for the entire biochemistry that we're about to get into both today and on Monday. Documents Similar To Biochemistry Notes. Principles of Biochemistry Lecture Notes.