external image metalcomplex.gifChem-Biochemexternal image chemistry.jpg

by: Sarah M., Brianne T., Julie T., Jennie U.



Summary:

The units of Biochemistry and Chemistry focus on matter and the characteristics of substances. Biochemistry is the science dealing with the chemistry of living matter. Chemistry is the study of the composition, structure, properties, and reactions of a substance. In Biochemistry we learn about the four molecules of life and how they affect us. In chemistry we discuss matter, elements, atoms, compounds, chemical bonds, and carbon.

Objectives:

In this chapter you will learn about:
-The four molecules of life
-The basics of chemistry
-Atoms and chemical bonds
-And water and the pH scale


VOCABULARY
:

Amino Acids: An organic molecule possessing both carboxyl and amino groups. Amino acids serve as the monomers of proteins

Atoms:
The smallest unit of matter that retains the properties of an element
external image atom-with-electrons.gif
Carbohydrates: A sugar (monosaccharide) or one of its dimers (disaccharides) or polymers (polysaccharides)
Chemistry: study of the composition, structure, properties, and reactions of a substance
Compounds: substance made up of atoms of two or more elements
Condensation: taking two, making one --> Linking smaller molecules to make a larger molecule

Covalent bond: forms when 2 atoms share one or more pairs of electrons (H2O)
Dehydration: removing water to form the molecule
Enzymes: A protein serving as a catalyst, a chemical agent that changes the rate of a reaction without being consumed by the reaction
Ionic bond: formed be electrical attraction between two oppositely charged ions (Na+Cl-)



Isomer: molecules with the same chemical formulas but different structural formulas
Isotopes: A form of an atom that has the same number of protons but different numbers of neutrons
Lipids: One of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water
Mass: the quantity of matter and object has
Matter: anything that takes up space and has mass
Monomer: a simple molecule
Monosaccharide: The simplest carbohydrate, active alone or serving as a monomer for disaccharides and polysaccharides.
Nucleic Acid: A polymer (polynucleotide) consisting of many nucleotide monomers; serves as a blueprint for proteins and, through the actions of proteins, for all cellular activities. The two types are DNA and RNA
Peptide bond: covalent bond that forms when two amino acids are joined together -- very strong bond external image ph.gif

pH scale: pH stands for "percent hydrogen": shows the measurment of the number of hydrogen ions present

Polysaccharide: A polymer of up to over a thousand monosaccharides, formed by dehydration reactions
Click hereto view an animation on the assembling Polysaccharides

Proteins: A three-dimensional biological polymer constructed from a set of 20 different monomers called amino acids
Steroids: A type of lipid characterized by a carbon skeleton consisting of four rings with various functional groups attached

Work cited: Click here to view.