Biomacromolecules UNIT 3 AOS 1 Flashcards
What elements do carbohydrates have?
Carbon, Hydrogen, Oxygen
What are the three types of carbohydrates?
- monosaccharide (single sugar unit)
- disaccharide (2 sugar units)
- polysaccaride (many sugar units)
What happens when you break up a polymer?
It becomes a monomer. This happens from a hydrolysis reaction where water goes in.
What happen when you make a polymer?
A series of monomers together. Creating a condensation reaction where water goes out.
What is maltose?
a sugar that is produced from the breakdown of starch. It is a disaccharide consisting of two linked glucose units.
What elements do lipids have?
Carbon, hydrogen, oxygen
What is the structure of phospholipids?
- Consist of a polar head (hydrophilic) made from glycerol and phosphate
- Has a charge associated with it
- Chemically attracted to water
- Consist of two non-polar fatty acid tails (hydrophobic) - lipid tail
- Chemically repelled to water
What is a triglyceride?
3 fatty acids chains attached to glycerol
What is a saturated fatty acid?
- no double bond
- straight line chain
- mostly animal fats
What is an unsaturated fatty acid?
- at least one double bond
- this gives them a kink
- mostly plant fats
Monounsaturated fatty acids?
Only have one double bond
Polyunsaturated fatty acids?
Have two or more double bonds
What is another word for protein?
Peptide
What are the monomers and polymers of proteins?
Monomer = amino acid Polymer = dipeptide, polypeptide
List and explain the four levels of polypeptides?
- Primary = in a sequence
- Secondary = coils and folds of the primary chain held together by hydrogen bondings
e. g. alpha helix (keratin) or beta pleated sheet (silk protein) - Tertiary = lots of wrapping and folding. more bonds form between the “R” groups (myoglobin)
- Quaternary = 2 or more polypeptide chains bent into one molecule (haemoglobin)