chapter 3 - molecules of life Flashcards
organic compounds
compounds in which carbon atoms are covalently bonded to each other to form backbone to which other atoms are attached to
hydrocarbons
compounds where only hydrogen is attached to the backbone
monomers
single units ( micromolecules )
polymers
large molecules made up of numerous monomers ( macromolecules)
carbohydrates
sugars
what types of carbohydrates are there?
Monosaccharides, disaccharides, and polysaccharides
Monosaccharides
can not be moved into simpler sugar ex - glucose, fructose, galactose
Disaccharides
contain two monosaccharide residues ( maltose , sucrose, lactose )
Polysaccharides
numerous glucose units linked together ex- starch, glycogen and cellulose
lipids
fatty compound ( used for energy, cushion vital organs, isolate body from cold )
Triglyceride
one glycol molecule attached to 3 fatty acid molecules
Saturated fat
glycerol attaches to 3 saturated fatty acid chains
unsaturated fat
glycerol attached to 1 or more unsaturated fatty acid chains
Polyunsaturated fat:
glycerol attached to 3 polyunsaturated fatty acid chain
Hydrogenated fats
MUFs that are artificially solidified by the addition go hydrogen
steroids
Phospholipids and cholesterol
anabolic steroids
artificial produced forms to testosterone
types of proteins
Structural , storage, contractile, transport, defensive, signal, enzymes
formation of protein ?
amino acids link together by dehydration synthesis to from peptide bonds (polypeptide )
Primary structure
unique sequence of amino acids in a polypeptide chain
Secondary structure
twisted polypeptide chain bc weak hydrogen bonds formed along the polypeptide backbone
tertiary structure
polypeptide chain becomes even more twisted bc hydrogen bonds formed between the side groups of chain
quaternary
when 2 < polypeptide chains are linked together
denaturation
process modifying the molecular structure of a protein by change in ph or temp
Nucleic Acids
DNA or RNA where ACGT or AGCU
DNA
Nucleotide monomers
nucleotide
5 carbon sugars, nitrogen base, and phosphate group
rna
Ribonucleotide monomers
ribonucleotide monomers
AGCU