Nutrition quiz 1 Flashcards
e a measure of energy in food, how much energy is stored in the bonds of an
organic molecule that is released during catabolism
Calorie
we use the term ________ to describe foods that are calorie dense but nutrient poor,
lacking minerals, vitamins and fiber (candy, soda pop)
empty calories
_____ is the minimum number of calories (kcal) a body needs at rest to
perform vital functions
Basal Metabolic Rate
______ and size affects the number of calories you require
body shape
- you should consume around______ of your daily calories from carbohydrate sources
45-65%
if sunlight is the energy source for this process, this production of organic carbon is
called _____
photosynthesis
“simple” refers to ______
monosaccharides and disaccharides
complex” refers to _____
polysaccharides
oligosaccharides are _____ of sugar units
short chains
sucrose =_____+_____
glucose + fructose
lactose =_____+______
glucose + galactose
maltose = ______+______
glucose + glucose
name 3 polysaccharides
starch, cellulose, glycogen
_______ action in mouth begins to break starch down into maltose
salivary amylase
_______ breaks starch down into maltose in the lumen of the small intestine
pancreatic amylase
_______ break down disaccharides into monosaccharides for absorption
across villi into blood capillaries
brush border enzymes
liver converts excess glucose to ____
fat
adipose cells convert excess blood sugar to fat under the influence of _____
insulin
insulin released by pancreatic islet _____ in response to increased blood glucose levels
beta cells
glucagon released by pancreatic islet _____ in response to decreased blood glucose levels
alpha cells
what is the best type of bread to eat
whole grain bread
the ______ measures how much a particular carbohydrate raises blood glucose
levels
glycemic index
______ takes into account both the glycemic index – how quickly glucose enters the
bloodstream - and the total amount of carbohydrate in a serving of a food
glycemic load
caused by the bacterium Streptococcus mutans which lives in colonies called ____ in the mouth feeding on sugars
plaques