Biological Molecules Flashcards
What is a monomer?
Atoms or small molecules that bond together to form more complex structures such as polymers.
What’s a polymer?
A large molecule created by bonding
What’s the formula for alpha glucose?
C6H12O6
What are the bonds between 2 monosaccharides?
Glycosidic bonds
What cmponetns make the disaccharide Maltose?
alpha glucose + alpha glucose
What components is the disaccharide Sucrose made from?
alpha glucose + fructose
What components make the disaccharide Lactose?
alpha glucose + galactose
List details about monosaccharides
- small
- soluble
- easily diffuse across membranes
List details of polysaccharides
- large but compact
- insoluble
- can’t diffuse across membranes
What is the structure of the starch amylase?
- one straight chain
- 1,4 glycosidic
- forms a helical structure
What is the structure of the starch amylopectin?
- very branched
- 1,4 & 1,6 glycosidic bonds
- cross linked
What’s the structure of the starch Cellulose?
- beta glucose
- 1,4 glycosidic bonds
- weak bonds between layers
What’s the difference between amylose and cellulose?
amylose = DNA loops
cellulose = no loops, linear and weak hydrogen bonds between rows
What is the food test for reducing sugars?
Benedicts reagent
Blue to Brick red
CuSO4 -> Cu2O
What’s the test for lipids?
Ethanol + Water in equal volumes
White cloudy emulsion