Carbon-Based Molecules KEY CONCEPT Carbon-based molecules are the foundation of life.

Carbon-Based Molecules Carbon atoms have unique bonding properties. Carbon forms covalent bonds with up to four other atoms, including other carbon atoms. Carbon-based molecules have three general types of structures. –straight chain –branched chain –ring

Carbon-Based Molecules Many carbon-based molecules are made of many small subunits bonded together. –Monomers are the individual subunits. –Polymers are made of many monomers.

Carbon-Based Molecules Four main types of carbon-based molecules are found in living things. Carbohydrates are made of carbon, hydrogen, and oxygen.

Carbon-Based Molecules Four main types of carbon-based molecules are found in living things. Carbohydrates are made of carbon, hydrogen, and oxygen. –Carbohydrates include sugars and starches. –Monosaccharides are simple sugars. –Polysaccharides include starches, cellulose, and glycogen.

Carbon-Based Molecules Carbohydrates can be broken down to provide energy for cells. Some carbohydrates are part of cell structure. Polymer (starch) Starch is a polymer of glucose monomers that often has a branched structure. Polymer (cellulose) Cellulose is a polymer of glucose monomers that has a straight, rigid structure monomer

Carbon-Based Molecules Some Basic Functions Energy source for all animals and plants Energy storage for plants and animals Humans use Cellulose to work as a natural pipe snake SOURCES Starchy Foods Sugary Foods Veggies

Carbon-Based Molecules Lipids have several different functions. –broken down as a source of energy –make up cell membranes – used to make hormones

Carbon-Based Molecules LIPIDS (4 types) TRIGLYCERIDES PHOSPHOLIPIDS WAXES HORMONES

Carbon-Based Molecules Triglycerides – Fats and Oils The Main functions of Triglycerides are: – Energy Storage 1g of fat contains nearly 2x as much energy as 1g of a polysaccharide. – Insulation (mainly sea critters) Blubber

Carbon-Based Molecules –Many contain carbon chains called fatty acids. –Fats and oils (triglycerides) contain fatty acids bonded to glycerol. Lipids are nonpolar molecules that include fats, oils, and cholesterol. Triglyceride

Carbon-Based Molecules Fats and oils have different types of fatty acids. –saturated fatty acids –unsaturated fatty acids ALL IN THE BONDS

Carbon-Based Molecules Phospholipids make up all cell membranes. –Polar phosphate “head” –Nonpolar fatty acid “tails” Phospholipid

Carbon-Based Molecules WAXES STRUCTURE: – 1 FA tail attached to an Alcohol Extremely hydrophobic(water bad mmkay) – Means it is a natural protective coat found on apples and pears, but it really shines as a dehydration preventive coating for many animals like insects.

Carbon-Based Molecules Names of hormones (steroids) tend to end in either –in(e), ron(e), -ogen (usually used for precursors) Are created from cholesterol. – A lipid that has a 4 ring structure. – Cholesterol is found in the cell membrane acting as somewhat of a structure reinforcer. Steroids include the sexual hormones and many non-sex linked hormones. HORMONES

Carbon-Based Molecules Fun with STEROIDS ANABOLIC STEROIDS - These are synthetic types of steroids made from male testosterone. - BENEFITS: Helps to treat anemia (muscle attacking disease) Quickly builds muscle - COSTS: Roid Rage due to chemicals in brain being thrown off (HULK ANGRY!!! HULK SMASH!!!!!!) Liver damage Decreased libido or sterility (Look masculine, but have all the drive and potentency of a Ken Doll) Bloated face

Carbon-Based Molecules Steroids anyone? Tammy Thomas -US Cycling Gold Medalist Tammy in 2007 Tammy in 2001

Carbon-Based Molecules Proteins are polymers of amino acid monomers. –Twenty different amino acids are used to build proteins in organisms.

Carbon-Based Molecules –Amino acids differ in side groups, or R groups. Proteins are polymers of amino acid monomers. –Twenty different amino acids are used to build proteins in organisms.

Carbon-Based Molecules –Amino acids are linked by peptide bonds. Proteins are polymers of amino acid monomers. –Amino acids differ in side groups, or R groups. –Twenty different amino acids are used to build proteins in organisms.

Carbon-Based Molecules Some Protein Function Builds parts of you body like muscles. Also work as Enzymes (we will learn more when we talk about Proteins in more depth)

Carbon-Based Molecules Nucleic acids are polymers of monomers called nucleotides.

Carbon-Based Molecules –Nucleotides are made of a sugar, phosphate group, and a nitrogen base. A phosphate group nitrogen-containing molecule, called a base deoxyribose (sugar) Nucleic acids are polymers of monomers called nucleotides.

Carbon-Based Molecules –DNA stores genetic information. Nucleic acids are polymers of monomers called nucleotides. –Nucleotides are made of a sugar, phosphate group, and a nitrogen base. –RNA builds proteins. DNA RNA