chapter 18 nutrition Flashcards

1
Q

4 metabolic pathways

A

anabolic, synthetic, catabolic, decomposition

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2
Q

plant carbohydrates

A

monosaccharides: glucose, fructose
disaccharides: sucrose (glucose+fructose)
polysaccharide: amylose (starch)

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3
Q

animal carbohydrates

A

monosaccharides: galactose, glucose
disaccharides: lactose (galactose+glucose)
polysaccharide: glycogen

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4
Q

where is glycogen stored

A

in the muscles and liver

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5
Q

what is oxidized as a source of energy in cellular respiration

A

carbohydrates

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6
Q

carbohydrates are stored as what in the liver and muscles

A

glycogen

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7
Q

what is used as digestive bulk (fiber)

A

cellulose

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8
Q

% of daily caloric intake for carbohydrates

A

45-65%

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9
Q

carbohydrates are essential for what processes

A
  1. nucleic acid synthesis
  2. to avoid fat and protein breakdown
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10
Q

where are triglycerides found

A

meat, eggs, whole milk, lard, tallow, plant oils

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11
Q

where are phospholipids found

A

lecithin, soybeans

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12
Q

sources of cholesterol

A

egg yolk, milk, cheese, meats

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13
Q

what do lipids do in the metabolism

A
  1. control circulation of fats by lipoproteins
  2. synthesizes cholesterol
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14
Q

what can lipids not do in the metabolism

A

synthesize linoleic acid (essential fatty acid)

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15
Q

what do adipose tissues do

A
  1. store triglycerides
  2. release fatty acids and glycerol into the blood when metabolized
  3. insulate body from heat loss
  4. may cause HTN from deposits in blood vessels
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16
Q

daily caloric intake of lipids

A

less than 30%

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17
Q

examples of linoleic acid

A
  1. corn oil
  2. cottonseed oil
  3. soy oil
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18
Q

sources of protein

A

obvious ones plus grains, and legumes

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19
Q

the 8 essential amino acids

A

iso
leu
met
phe
thr
try
lys
val

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20
Q

the two extra essential amino acids for kids

A

arg
his

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21
Q

complete proteins

A

easy

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22
Q

incomplete proteins

23
Q

cell structural proteins

A

actin
myosin
collagen
keratin

24
Q

proteins are used for…

A
  1. enzymes
  2. hemoglobin
  3. protein hormones
25
protein % of daily calories
10%
26
recommended daily intake of protein in grams
0.8g/kg/day for adults additional 20g/day for nursing moms
27
kwashiorkor
leads to edema and enlarged liver
28
1 calorie
the amount of heat required to raise 1 gram of water by 1 degree Celsius
29
1 calorie =? joules
4.18 joules
30
BMR
basal metabolic rate - amount of energy used when awake and at rest
31
avg. BMR = ? calories per hour per kg of body weight
1
32
energy balance
when caloric intake of food is equal to the caloric output
33
how many extra calories makes you gain 1 pound
3,500
34
B1
- thiamine - def. causes beriberi
35
B2
- riboflavin - component of FAD in cellular respiration
36
B3
- niacin - AKA nicotinic acid - def. causes pellagra
37
B5
- pantothenic acid - part of coenzyme A - essential for beginning of citric acid cycle
38
B6
- pyridoxine - can act as coenzymes
39
B7
- biotin - used to make nitro bases A and G
40
B9
- folic acid - AKA folacin - used to synthesize DNA - def. causes neuro tube defects and megablast anemia
41
the B vitamin important during pregnancy
B9 folic acid
42
B12
- cyanocobalamin - requires cobalt - def. causes pernicious anemia
43
vitamin C is also called
ascorbic acid
44
vitamin C important for
collagen production
45
vitamin C def.
scurvy
46
major minerals make up what % of body weight
4%
47
mineral used in muscle contraction and nerve impulse transmission
calcium
48
daily intake of calcium
1,000-1,200 mg
49
mineral found in meats, cheese, and nuts
phosphorus
50
phosphorus is used in ...
DNA, ATP, and phospholipids
51
daily intake of phosphorus
700mh
52
other major minerals
k, S, Na, Cl, Mg
53
trace elements
iron- hemoglobin and myoglobin iodine- used to make thyroid hormone cobalt- part of B12
54
two things that increase iron intake
eating liver and cooking on cast iron