Fats and oils have different types of fatty acids. Saturated Fats. ⢠Long chain of C-C bonds (all single. Long chain of C C bonds (all single bonds)...
• Structure (2 parts): – “Head” of glycerol (polar) – “Tail” of fatty acid molecules (non‐polar) “T il” f f tt id l l ( l )
• Monomer: Fatty Acid • Polymer: Lipid P l Li id
Unsaturated Fats
• Long chain of C‐C bonds (some double bonds) • Unsaturated: Less space for H atoms Unsaturated: Less space for H atoms • Double bonds make “kinks”, which are not easily compacted = Liquid at room temps • Plant fats think
• Long Long chain of C chain of C‐C C bonds (all single bonds (all single bonds) • Each C is “saturated” with H atoms • Single bonds are easier to compact = solid at room temps think • Very common in animal fats V i i lf t
Which has more H?
Nucleic Acids Nucleic Acids
Nucleic Acid Basics • Contain instructions to build protein • 2 types oDNA oRNA •Made up of smaller units called nucleotides omonomer = nucleotide oPolymer = nucleic acid
– Nucleotides are made of • a sugar • phosphate group • nitrogen base. A phosphate group
nitrogen‐containing molecule, called a base called a base
deoxyribose (sugar)
‐‐ The arrangement of the nucleotides determines the Th f h l id d i h kind of protein created.
Monomers link to make polymers! Nucleic Acids Nucleic Acids Monomer = Nucleotide Polymer Nucleic acid Polymer = Nucleic acid
DNA
• Double Helix: 2 chains of nucleotides Double Helix: 2 chains of nucleotides • DNA bases: Adenine, thymine, cytosine, guanine – A pairs with T A pairs with T – C pairs with G
• DNA stores the info required to make a protein DNA h i f i d k i • Gene: section of DNA that codes for a protein
Predict the nucleotides to fill in this to fill in this DNA chain
RNA
• 1 1 chain of nucleotides chain of nucleotides • RNA bases: Adenine, uracil, cytosine, guanine • Copy the DNA code… deliver code to ribosome to make a protein
