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42 Cards in this Set
- Front
- Back
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If you eat more carbs it spares _______ breakdown.
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protein
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The chemical score (essential AA content) for_______ products is higher than ____ products
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animal
plant |
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PROTEIN – __-35% daily calories (essential amino acids) are recommended
Adult requirement of protein is 0._ g/kg body weight. |
10
.8 We generally get more than we need |
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Biological value – chemical score and net protein utilization are terms which compare proteins based on their amino acid composition and their __________.
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digestibility
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Nitrogen-balance
Output – 1 g of urinary nitrogen = _.__ g of protein metabolized |
6.25
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Immobilized patients are given IV food. Glucose is added to prevent muscle wasting, what other things is added to prevent muscle wasting?
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leucine
Leucine stimulates protein synthesis |
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primarily protein deficiency is called?
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Kwashiorkor
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deficiency of both calories and proteins is called?
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Marasmus
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A child with _________ has enough calories, but not enough protein.
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Kwashiorkor
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Timing of protein deficiency is worse during what stage?
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Weening period, will have some long term effects
If i stopped eating protein it could be reversed without major side effects |
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CARBOHYDRATES – __-65% daily calories recommended
RDA – 130 g or about ____ kcal per day is a minimum |
45
500 |
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The change in blood glucose after a fixed dose compared to a reference compound is called the food's _______ ________.
Give some high and low ones. |
Glycemic index
potatoes > bread > rice > beans |
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What makes amylose and amylopectin available to be broken down and cellulose not?
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amylose and amylopectin have alpha 1-4 and alpha 1-6 bonds that can be broken
cellulose has beta 1-6 |
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Functions of fiber
Hypo__________lemic -increased _____ acid formation -decreased reutilization of bile acids Promotes normal bowel function Antitoxic properties (anticarcinogenic) decrease in transit time change in microbial flora metabolism in colon Modifies (lowers) the glycemic response (glucose and insulin) Lowers nutrient availability-affects both digestion and absorption |
cholestero
bile |
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beta ______ is a component of dietary fiber that has a positive affect on lowering cholesterol
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glucan
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What is the one negative thing with increased fiber intake?
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Lowers nutrient availability
-only negative thing – metals such as zinc, iron are interfered with |
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Which artificial sweetener was found to cause bladder cancer in rats?
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Saccharin (Sweet’N Low)
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The artifical sweetener aspartame gets broken down into what?
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Phenylalanine and methanol
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What is wrong with the statement:
Clinical use of glucosamine and chondroitin sulfate is a treatment option for osteoarthritis |
-some people say that you need glyconutrients to be put on the cells to mark them as your own
- Problem is that you only need glucose to make these sugars |
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What two particles react with Lipoprotein Lipase and where do they come from?
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Chylomicrons - enterocytes (stomach cells)
VLDL - liver |
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EFA are part of membrane phospholipids and serve as eicosanoid precursors (for example: ________ acid to arachidonic acid)
__________ acid can be converted to docosahexaenoic acid (DHA) 22:6 omega-3 but not very effectively. DHA may be dietary “essential |
linoleic
Linolenic |
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EFA or their CoA esters (linoleic acid or linoleic acid CoA) also affect gene ____________ by binding to transcription factors and nuclear receptors.
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expression
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Butter and lard would tend to have a large proportion of what group of FA's?
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saturated
16:0 18:0 |
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Linoleic acid 18:2 omega-_
Linolenic acid 18:3 omega-_ |
6
3 |
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Oils from evening primrose, black current, or borage contain GLA - ________ linolenic acid (18:3 omega 6). Purported to be anti-inflammatory as converted to eicosaniod analogs.
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gamma
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FAT – __-35% calories daily recommended
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20
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canola is popular because it is high in ______ acid
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oleic
18:1 |
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Recommendation: limit total dietary fat to less than __% daily energy intake.
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30
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Which saturated fats raise cholesterol?
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C6-C10 no effect
C12 (lauric) raise cholesterol C14 (myristic) raise cholesterol C16 (palmitic) raise cholesterol C18 (stearic) no effect. |
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Saturated fat consumption raises plasma ___________.
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cholesterol
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Cholesterol intakes above 400mg/d are not correlated with plasma cholesterol
Recommendation: limit intake <___mg/d |
300
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Saturated Fatty acids
C_-C__ no effect C__-C__ raise cholesterol C18 no effect |
6 -10
12-16 |
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Substitution of _____________ fat (oleic acid rich foods) for saturated fat lowers total cholesterol (both LDL and HDL). Some indicate greater lowering of LDL
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monounsaturated
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Isocaloric diets substituting polyunsaturated fat for saturated fat lowers plasma cholesterol both ____ and _____.
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LDL and HDL.
linoleic is the main PUFA |
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EPA (fish oil) is a competitive substrate with arachidonic acid 20:4n-6. What does this do for people with disorders?
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-it produces a thromboxane analog that doesn’t’ work (clot), but it makes a prostaglandin that does work
People that eat these have lower risks of stroke and clotting disorder |
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EPA and linolenic acid (18:3n-3) act like PUFA regarding plasma cholesterol levels (HDL and LDL). What else do they lower?
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VLDL by inhibiting synthesis
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Ingestion of trans fatty acids __________ plasma cholesterol.
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increases
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____ Linoleic Acids have a positive impact on health: lower risk of obesity, cancer, heart disease.
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Conjugated
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T/F
There is no change in the number adipocytes from 100% to 150% body weight |
True - adipocytes just get bigger
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When obesity occurs in childhood, what happens to adipocyte number?
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it is increased compared to non-obese children
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When someone goes on a diet, what is first lost?
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water
then tissue after 2 weeks |
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A pound of fat contains only 15% water. Thus, kcal = 454g/# x 9 kcal/g x 0.85 = ~ ______ kcal
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3500
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