seminar 1 - we are what we eat case study Flashcards
(16 cards)
how many carbon atoms does a molecule of fructose contain?
6
which chemical component differentiates these 20 amino acids?
r group
Out of the 20 amino acids, there are 9 essential. Which of the combinations are only essential amino acids?
Leucine, tryptophan, phenylalanine
What is the name of the chemical reaction by which a fatty acid binds to the glycerol molecule and what additional molecule is formed?
Esterification; H2O
Which transporter sits at the contraluminal side of the epithelial cells in the small intestines to assist in the absorption of carbohydrates?
GLUT 2
What is the correct name of the inactive form of pepsin and what causes its activation.
Pepsinogen; release of gastric acid
Where does the digestion of lipids/fat start and what is the name of the enzyme?
Mouth; lipase
Without the presence of co-morbities, what does the body mass index (BMI) of a person need to be in order to qualify for bariatric surgery?
> 35
is a gastric band a reversible procedure?
yes
In what bariatric surgery, what is the name of the surgery called where a large part of the stomach is bypassed by attaching the top of the stomach is attached to the small intestine?
Roux-en-Y
Malnutrition of which of the following nutrient is least likely to occur following bypass surgery?
Carbohydrates
what enzymes are secreted by the salivary glands?
amylase - breaks down starch into sugars
lipase - break down of fatty acids
protease - breaks down proteins
what enzymes are secreted by the stomach?
pepsin, protease
what enzymes are secreted by the pancreas?
amylase, lipase, protease
what enzymes are secreted by the small intestine?
peptidase, lactase, maltose
how does the pH of the environment change across the full digestive tract and how does this influence enzyme activity?
in the stomach, pH is lowered due to hydrochloric acid which denatures the amylase
