IBCLC Exam Prep Guide with Questions and Answers

IBCLC Exam Prep Guide with Questions and Answers ______ is the main carbohydrate in breast milk, accounting for approximately 98% of carbohydrates. ANSWER lactose Also known as milk sugar, lactose is a disaccharide, meaning it is made up of two sugars (or two monosaccharides): ANSWER Glucose and Galactose Lactose is made by ________ in the mammary gland. ANSWER lactocytes The baby swallows the milk and, once in the infant's GI tract, it is broken down by the enzyme, ________, which is found in the brush border of the intestine. ANSWER lactase The highest concentration of lactase is found in the _____ ______ of the small intestine. The enzyme activity of lactase progressively decreases with age in genetically susceptible people. ANSWER proximal jejunum Lactose concentration is the least variable component in human milk - being present at about 7% (7 g/dL) throughout the day. Lactose provides __ kcal of energy per gram. ANSWER 4 _________ is an important glycoprotein in human milk. ANSWER Lactoferrin Prolactin ANSWER - from the anterior pituitary gland - secreted by lactrophs - initiates and sustains lactation