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KANSAS STATE UNIVERSITY FNDH 620 EXAM 1 NEWEST
ACTUAL / QUESTIONS WITH 100% ANSWERS
VERIFIED /GRADED A+
polysaccharide definitions - -----Answers---Repeating monosaccharide units Often glucose Can form chaines or branches
Bonds in chains vs branches - -----Answers---Chains:
Carbon 1-4
Branches: Carbon 1-6
oligo- saccharide definitions - -----Answers---Medium length chains Linked with the OH groups of neighboring monomer Cannot break down - food for microbes in LI - gas
D vs. L stereoisomers for carbohydrates - -----Answers--- OH on right - D OH on left - L
Most natural are in D
Sugar in the food supply - -----Answers---*Starch in plants* 1 / 2
Amylose: 20%, straight chain (alpha 1-4)
Amylopectin: 80%, branched (alpha 1-4 and alpha 1-6)
*Glycogen in animals* Alpha 1-4 with more alpha 1-6 branchs Not a significant source - decays after death Storage form
Fiber recommendation for men and women under 50 - ----- Answers---
Carbohydrate digestion occurring in each organ of the GI tract
- -----Answers---Mouth: Salivary amylase
Stomach: None
SI: Pancreatic amylase, Brush Border -
maltase/sucrase/lactase/alpha-dextrinase
LI: Bacteria
Carbohydrate digestive enzymes - -----Answers---Alpha- amylase
Alpha 1-6 dextrinase, isomaltase: brush border enzyme
hydrolyse 1-6 linkage in starch
Enzymes in villi: maltase, lactase, sucrase
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