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65 Cards in this Set

  • Front
  • Back
Carbs made up of
C, H, O
Carbon
Hydrogen
Oxygen
3 types of carbs
Monosaccharides
Disaccharides
Polysaccharides
Monosaccharides (3 types)
Glucose
Fructose
Galactose
ALL same # of atoms but diff. arrangement
:
Glucose aka
Aka blood sugar
• MAIN energy source
Fructose
-The sweetest of sugars
-has diff. Structure
Galactose
Happens naturally as simple sugar
Disaccharides made by ______ of 2 monosaccharides
By Condensation. : creation of Disaccharide.
Disaccharides (3 types)
Maltose
Sucrose
Lactose
:
1: how is Maltose made
Glucose + Glucose
:
2. How is Sucrose made
Fructose + glucose
(Table sugar)
:
3) How is Lactose made
Galactose and Glucose
Hydrolysis
Break down of disaccharide
Complex CHO (3 types)
Glycogen
Starches
Fiber
:
1.Glycogen
Found only in meats and not all plants
:
2. Starches
-Come from?
Long chain of molecules
Come from food :
Grains
Potato
Legumes
Corn
:
3. Fiber
Found in all plant derived food
::
Dietary fibers include (can be digested)
Cellulose
Hemicellulose
Pectins
Guns
Mucilages
::
Non polysaccharide include (CANNOT be digested)
Lignins
Cutins
Tannins
TYPES OF FIBER
Solubles
Insoluble
Solubles
I digested food component, dissolves in water
:Solubles good includ
Oat
Barley
Legumes citrus
Pectin from food
Benefits of soluble diber
Lowers cholesterol and lower BG
Insoluble
Does not digest in water
Insoluble fiber found in
Whole grain (bran)
Veggies (corn celery)
Insoluble fiber helps with
Bowel movement
-eliminates constipation
:
Resistant starch
-what are some sources of ^^
Starches that escape digestion and absorption in the SI
-Sources: legumes, raw potatoes, in ripe bananas
:Phytic Acid
Non nutrient component of plant seeds
-ex flax seeds
Benefits if Fiber
HD: Heart Disease
-Solubles, lowers Chol

DM: Diabetes
-decrease glucose surge

GI Health:
-stool movement = no constipation

CA: protects against Colon Cancer

WT Control: feeling of fullness
-fiber foods low in fat/less add sugars
Fiber recommendation of
DV:
DRI:
ADA:
UL:
Us Avg:
DV:25 g
DRI:14g/100kcal
ADA: 20-35g
UL: 40g
Us Avg: 15g
KEY: ^^ slowly, add water
CHO DIGESTION: mouth
Food seconds in mouth
Salivary glands produce saliva
-Hydrolyzes starch to smaller polysaccharide and disaccharide
CHO DIGESTION: Stomach
Stomach acid starts salivary amylase
-stops starch digestion
CHO DIGESTION:SI
Pancreas make-
CHO Digestion occurs
-It makes pancreatic amylase released by pancreatic duct
Disaccharide enzymes breakdown to monosaccharides:
Maltase ->
Sucrase ->
Lactase ->
Maltase -> GLU + GLU
Sucrase -> GLU + FRU
Lactase -> GAL + GLU
CHO DIGESTION : LI
Time that all sugars and most starches are digested?
Within 4 hrs
-Fiber stays in tract and attracts water
It also binds with bile, CHOL and some minerals
Id not enoug glucose than body uses other sources. This is called_____
Gluconeogenesis
Protein sparing action =
Action if CHO and fat to provide energy that allows PRO to be used for other sources
Not enough carbs. _____will form from fat fragments
Ketone bodies
Ketosis=
= High concentration of leone bodies in blood and urine
Carbs needed for protein sparing and prevention of ketosis
Minimum : 50-100 g/day
Goal of blood glucose is
Maintain homeostasis (happy level)
:____ is key to let glucose enter into cells
Insulin
____ and _____ being glucose out of storage
Glucagon and epinephrine
Blood Glucose Hormones:
Insulin =
Secreted by _____due to____
= Secreted by beta cells in pancreas due to High BG
ROLE : control transport of glucose
CHO DIGESTION : LI
Time that all sugars and most starches are digested?
Within 4 hrs
-Fiber stays in tract and attracts water
It also vida with bike, CHOL and sown minerals
::
Glucagon
Made by beta cells in pancreas due to LOW BG
:: Epinephrine
Made by adrenal gland, starts stress
Insuline is either inadequate (not enough) or defficient
Type 1 Diabetes->
Type 2->
Type 1-> not enough insoluble production
Type 2-> not responding to insulin
Hypoglycemia=
Low BG
Glycemic response
How quick food will ^^ BG
Effects of sugar
Dental caries
Recommended intake of Sugar:
DRI-
WHO (world health Org.) & FAO-
AHA (Ame. Heart. Asso.)-
US now-
DRI- nope than 25% days total energy
WHO (world health Org.) & FAO- < 10% of kcals
AHA (Ame. Heart. Asso.)- 6 tsp women & 9 tsp men
US now- 105 lbs added sugar/ yr or 30 tsp/day
Moving from digestion to absorption:
Most absorption happens in? And by which transport?
In the SI
Active : glucose and galactose(needs carrier + energy)
Facilitated: Fructose (needs carrier)
:: once absorbed, monosaccharides go to LV via?
Via hepatic portal vein
::
In liver galactose and fructose gets converted to?
Glucose
Lactose intolerance due to lack on?
% of ppl can digest lactose?
Lactase (enzyme)
-30%
:: Symptoms of intolerance
-highest in what ppl?
Bloating, diarrhea, abdominal discomfort
-Highest in SE Asians, Native Ame. African A.
:; Most people tolerate (amount)?
6g of lactose = 1/2 cup
:: Aware: ___% of prescription and over counter mess have lactose as filler
20%
Recommendation for Sugar:
DRI-
WHO (world Healrh Org.) & FAO-
AHA (Ame. Heart. Asso)-
US now -
DRI- no more than 25% of days total kcal

WHO (world Healrh Org.) & FAO- < 10% of kcal

AHA (Ame. Heart. Asso)- 6 tsp women, 9 tsp men

US now - 105 lbs added sugar per year OR 30 tsp a day
Alternative sweetener
Sugar alcohols/ Polyols=
Side effects-
Natural (fruits) or produced
-Not absorbed in mouth, not much in SI
Side effects -gas, discomfort, laxative effect
-no dental caries
Alternative sweeteners
-Artificial sweeteners (no nutrients)
-Stevia -herbal product
1 oz of grain = ____g of carbs
15g
Vegatavles
Are starch content
Fruits have what carbs?
Fructose
Meat and meat alternatives have_____carbs
NO CARBS
B.c. Glycogen gets destroyed