chapter 6-3 Flashcards

1
Q

immune system-antibodies- what do they do

A

destroy one specific invader
participate in allergy reactions

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1
Q

body proteins transport what

A

substances in and out of cells, specifically hemoglobin and lipoproteins

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2
Q

fibrin (protein) fibers prevent

A

forming of blood clots

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3
Q

liver produces the majority of

A

blood proteins

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4
Q

albumin is what percentage of liver production

A

60%

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5
Q

kwashiorkor

A

protein/energy malnutrition

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6
Q

lack or loss of large blood proteins results in

A

drop of osmotic pressure which allows too much water to leave the blood vessels

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7
Q

edema is squishy wet tissues holding

A

too much water around the outside of the cells

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8
Q

the starting point for protein to provide energy is the

A

individual amino acid

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9
Q

once the amine group is removed, the remaining structure is called a

A

keto acid

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10
Q

depending on which keto acid is present, it can be converted into

A

a substances and enter into carb energy pathway

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11
Q

using protein for energy prevents it from

A

serving in any other protein function

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12
Q

if an amino acid is used for energy it must have its

A

amine group removed

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13
Q

after removing the amine group the cells send

A

a substance containing the amine group to the liver

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14
Q

if the liver is damaged excessive amount of

A

ammonia could build up in the blood

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15
Q

excessive amounts of ammonia act as a

A

sedative to the brain which could cause coma and death

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16
Q

liver cells do not store

A

urea, they release it back into the blood

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17
Q

kidney cells filter the

A

urea out of the blood, into the urine, and send it to the urinary bladder

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18
Q

when excess protein is consumed or when carb and/or calories intake is too low

A

excessive urea is generated

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19
Q

excessive urea irritates membranes of

A

kidney cells

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20
Q

amino acids become part of

A

protein

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21
Q

amino acids can be converted into

A

a different amino acid

22
Q

amino acids make

A

a needed compound

23
Q

amino aids dismantle

A

amino acid for component parts and use portions for energy(wasting)

24
four conditions that cause the wasting of amino acids
inadequate amount of energy available for body less than 130g carbs consumed excessive amt of protein too few essential amino acids consumed
25
protein supplements do not
improve performance and are not effective for weight loss
26
amino acid supplements are designed to work with
whole proteins
27
no safe level of
amino acid supplementation
28
protein and amino acids supplied in excess of body needs would be converted into
glycogen or fat used or stored
29
concentrated sources of amino acids could block the
absorption of other amino acids causing the the limiting amino acid issue which prevent porteins from being made
30
all amino acids needed to make a protein MUST be
present at the time protein is made
31
missing just one amino acid will cause the
incomplete protein fragment to be taken apart
32
if limiting amino acid is not obtain, the needed protein will
not be made and the unused amino acids will be wasted as their amine groups are removed
33
adults protein intake grams per kilo body weight
.8-1.6
34
athletes protein intake grams per kilo body weight
1.2-1.7g to 1.2-1.4
35
nitrogen balance is the
amount of protein consumed= amount of protein (nitrogen) excreted
36
positive balance is where more nitrogen is
retained than is excreted
37
negative balance is where more nitrogen is
excreted than consumed
38
complete (high-quality) proteins
almost all animal products are complete because they contain all of the 9 essential amino acids
39
incomplete (low-quality) proteins
all plant products because they are missing one or more of the essential amino acids
40
animal products are the
easiest to digest and to absorb amino acids from these foods
41
100% of amino acids are
digested and absorbed from cooked egg whites and heat-treated milk
42
plant products are not as easy to
digest and not as easy to absorb amino acids from foods due to fiber and other substances presents
43
legumes are what percentage of amino acids that are digested and absorbed
80-90%
44
grains, vegetables, nuts, seeds are what percentages of amino acids that are digested and absorbed
70-90%
45
better absorption if protein sources are cooked using
moist heat
46
poorer absorption if protein sources are
raw or cooked using dry heat
47
incomplete plant proteins work together to
supply the missing essential amino acids
48
eating too little protein may lead to
reduction of lean body mass, risk of increased frailty, impaired healing, decreased immune function
49
PEM is
inadequate cals and/or protein very serious in children
50
factors of PEM
poverty, poor food quality, insufficient food, unsanitary living conditions ignorance, stoppling lactation too early
51
marasmus is
chronic form of PEM
52