Intro to Biomolecules Flashcards
Emily
Ionic bonds - example
Electrostatic attraction –> solubility
- e.g. NaCl
Covalent bonds - example
Strong –> determines shape
- e.g. proteins
Van der Waals - example
- ve dipole repels e-s in neighbouring –> determines how close atoms can get
- e.g. H bond
Hydrogen bonds - example
Between H and N/O/F
- e.g. solubility, coolant
Saturated fats
More rigid –> more solid at room temp –> assoc. w heart disease
Triacyl glycerol = energy store as…
Glyerol –> into glucose
Fatty acids –> acetyl CoA
Amphipathic
When hydrophobic AND hydrophilic
- fatty acids can be
Steroid structure
4 fused C rings w different functional groups
Cholesterol
- what
- function
- inhibited by
- Most commonly synthesised steroid
- Building blocks for other
- Inhibited by statins
Amino acids are acidic due to…
Carboxyl group
Nucleotide structure
Nitrogen ring & 5-C sugar (ribose OR deoxyribose) & phosphate group
Nucleotide examples x4
ATP, DNA, NAD, CoA
Function of carbohydrates
- & example
Chains for energy store
- e.g. glycogen in liver, muscles
Function of proteins
- & example
Polypeptide chains
- e.g. enzymes
3D structure more stable if…
Better at burying hydrophobic & exposing hydrophilic