Nutrient Digestion and Absorption (Carbohydrates and Protein) Flashcards
What are the 3 monosaccharides?
Glucose
Galactose
Fructose
What are the joins involved in disaccharides?
alpha 1-6 glycosidic bonds
What molecules make lactose?
galactose + glucose
What molecules make sucrose?
fructose + glucose
What molecules make maltose?
glucose + glucose
What is the consequence of not having lactase?
Lactose remains in gut and pulls water out, diarrhoea
What are the 3 main polysaccharides?
Starch
Cellulose
Glycogen
What makes starch?
Alpha amylase
Amylopectin
What is the difference between alpha amylase and amylopectin
Alpha amylase are glucose molecules linked in straight chains
Amylopectin are glucose molecules that are highly branched
What are the bonds in starch?
Alpha 1-4 glycosidic bonds
Describe cellulose
Unbranched, linear chains of glucose linked by beta 1-4 glycosidic bonds
Describe glycogen
Storage form of glucose linked by alpha 1-4 glycosidic bonds
What does SGLT1 transport?
Sodium and glucose into the cell
What does GLUT2 transport?
Transports glucose and fructose into the blood
What does GLUT5 transport?
Transports fructose into the cell