Macromolecules Flashcards
4 Macromolecules of life
Carbohydrates, proteins, nucleic, acids, and lipids 
Elements of life
Carbon, oxygen, hydrogen, nitrogen, sulfur, phosphorus
Monomer
A molecule that can be bonded to other identical molecules to form a polymer
Polymer
A large compound formed from combinations of many monomers
Dipeptide
Two amino acids bonded together
Polypeptide
A long chain of amino acids that make proteins
Enzyme
A type of protein that speeds up a chemical reaction in a living thing
Substrate
The reactant being catalyzed; needs to be specific in order for it to fit with an enzyme
Condensation reaction/dehydration synthesis
Water is gotten rid of as a byproduct of two monomers making space to link together
Hydrolysis
Water is added to a polymer to break it down into monomers
Elements of carbohydrates
CHO
Function of carbohydrates
Short term, energy storage; immediate energy; bodies primary source of energy
Monosaccharides
Glucose fructose galactose
Disaccharides
Sucrose lactose Maltos
Joined by glycosidic linkage
Polysaccharides are
A long chain of monosaccharides
Starch
 Form of glucose storage in plants
Glycogen
Glucose storage in animals
Cellulose
Structural polysaccharides in cell walls
Chitin
Exoskeleton of arthropods
Elements of lipids
CHO
Examples of lipids
Triglycerides, fatty acids phospholipids, steroids, waxes, and pigments
Fatty acids
Monomer of lipids; made from a carbon chain (only CH)
Saturated hydrocarbon chain
Straight line; more hydrogen; no double bonds; packed tighter together; high melting point
Unsaturated carbon chain
Bends in the line; less hydrogen; double bonds; liquid at room temperature; low melting point
Phospholipids: tails
Two; hydrophobic; made of fatty acids
Phospholipids: head
One; phosphate; hydrophilic
Cell membrane
Made of a phospholipid bilayer
Phospholipid bilayer
Arrange tail to tail because the head wants to be facing H2O
Proteins are
Chains of amino acids
Functions of proteins
Structural support, catalyst, transport, defense, movement, regulation
Elements of proteins
CHON
Structure of proteins
Primary secondary tertiary quaternary
Nucleic acid elements
CHONP 
Nucleic acid functions
Store and transmit genetic information
Types of nucleic acids
DNA and RNA
Monomer of nucleic acids
Nucleotides
Why can lipids store more energy than carbs?
They have a large number of hydrogen carbon bonds
GGF (energy source)
Glucose galactose fructose
LSM transport
Lactose sucrose maltose
CGS store
Cellulose, glycogen, starch
Salmon, avocados, nuts
Lipids
Sugar, wheat, vegetables
Carbs
DNA and RNA
Nucleic acids
Enzymes insulin hemoglobin
Proteins
Denatured protein
A change in shape caused by higher temperatures or changed pH
Chaperoning
Protein molecule that helps properly fold other proteins
X-ray crystallography
Determines 3D structure of a protein
Role of DNA
Store information for protein synthesis
RNA functions
Direct RNA synthesis & protein synthesis
Each polynucleotide has
Nucleotides, sugar + phosphate + nitrogen base
Cellular DNA molecules have two…
Polynucleotides that spiral on an axis to form a double helix
Double helix consists of
Two intersecting nucleotide strands
Nitrogenous bases in DNA
AT & CG
CHO and sometimes P
Lipids
CHO; 1:2:1; forms rings
Monosaccharide
Adenosine Triphosphate (ATP)
Hydrolysis provides energy needed to drive chemical reactions; ATP stores energy within compound
DNA and RNA both…
Store genetic information; are made from nucleotides
Steroid structure
Fused carbon rings with various attached functional groups
Formula for a monosaccharide
(CH2O)n