Carbohydrates Recall Test Flashcards
Which substance is composed of amylose and amylopectin molecules?
Starch
What is the main molecular difference between amylose and amylopectin?
Amylose has 1-4 glycosidic bonds (branched)
Amylopectin has 1-6 and 1-4 glycosidic bonds (unbranched)
Name a good source of starch from food:
Potato
What substance is sometimes referred to as animal starch?
Glycogen
What units/monomers are glycogen and starch made from?
alpha glucose
Describe the structure of glycogen:
- branched
- 1-4 and 1-6 glycosidic bonds
- alpha glucose
Where is glycogen stored in animals?
Liver
Where is starch stored in plants?
- leaves
- bulbs
- seeds
- stems
Name a feature of starch and glycogen that makes them suitable for storage molecules:
They are compact, so they do not take up a lot of space
They are insoluble
What energy providing molecule is glucose used to produce in the process of respiration?
ATP
What is the equation of respiration?
Glucose + Oxygen –> Carbon dioxide + Water
What sort of reactions are used to break down a polysaccharide into monosaccharides?
Hydrolysis
What molecule is needed for hydrolysis reactions?
Water
What sort of reactions were used to join together lots of monosaccharides to form a polysaccharide?
Condensation
What type of covalent bond forms between monosaccharide molecules?
Glycosididic
