Carbohydrates Flashcards

1
Q

Health issues related to CHO

A
diabetes mellitus
hypoglycemia
disaccharidase deficiencies
 -abdominal cramps
 -watery diarrhea
 -bloating
dental caries
galactosemia
 -genetic galactose in blood
glycogen storage disease
 -genetic cannot convert 
  glycogen to glucose
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2
Q

Monosaccharides

A

glucose 70
fructose 120-180
galactose

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3
Q

Disaccharides

A
sucrose 1
 -glucose/fructose
lactose 20
 -glucose/galatose
maltose 40
 -glucose/glucose
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4
Q

Polysaccharides

A
Starches
 -amylose
 -amylopectin (branched)
Cellulose
Glycogen
Others
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5
Q

Relative sweetness

A

based on sucrose (1)

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6
Q

Artificial sweeteners

A
sunett sweet one (acesulfame-K)
nutrasweet (aspartame, saccharin)
sucaryl (cyclamate, neotame)
splenda (sucralose)
tagatose
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7
Q

Amylose

A

alpha 1,4

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8
Q

Amylopectin

A

alpha 1,4 and alpha 1,6

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9
Q

Cellulose

A

beta 1,4

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10
Q

Total fiber

A

sum of dietary and functional

dietary is nondigestible while functional is digestible and beneficial

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11
Q

Starch

A

salivary amylase in mouth, pancreatic amylase in small intestine -> (maltase) glucose

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12
Q

Maltose

A

maltase in small intestine (glucose)

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13
Q

Glucose

A

glucose all the way

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14
Q

Sucrose

A

HCl in stomach can change it to glucose or fructose -> (sucrase) glucose or fructose

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15
Q

Fructose

A

fructose all the way

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16
Q

Lactose

A

lactase (glucose) and galactose

17
Q

Blood glucose

A

fasting level 70-110

glycogenesis (glycogen sythesis)

glycogenolysis (glycogen breakdown)

lipogensesis (fatty acid synthesis)

transamination (aa synthesis)

gluconeogenesis (aa degradation

insulin brings down blood glucose level

glucagon brings up low blood glucose

18
Q

glucose metabolism

A

glycolysis (cytoplasm)
citric acid cycle (mitochondria)

no oxygen no energy

19
Q

glycemic load and index

A

index: ratio of blood glucose response to a given food in comparison to standard
load: index multiplied time the grams of carbohydrate in 1 serving

20
Q

DRI

A

RDA 130g/d
AI for DF 38 M, 25 W
Energy 4 kcal/g