protein Flashcards

(41 cards)

1
Q

polypeptides

A

many bonds between amino acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

all proteins are built from

A

essential and non essential amino acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

nitrogen is in

A

every amino acid and is on the amine group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

de-amination

A

removing nitrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what makes each amino acid unique

A

the side chain or R group

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

if protein shape is broken

A

protein no longer functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

final shape of a protein is

A

folded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ommnivore

A

no limitations in the food you eat (eat both plants and animals)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

strict vegeterian

A

no meat, eggs, dairy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

lacto-ovo vegetarian

A

includes dairy and eggs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

vegan

A

no animal products
-no honey or gelatin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

RDA in sedentary adult

A

0.8 g/kg bw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

RDA for babies

A

1.52. g/kg bw

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

if you dont eat meat you have to add ____ to RDA

A

10% to original RDA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

tryptophan RDA

A

5 mg/kg/day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

leucine RDA

A

42 mg/kg/day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

complete protein

A

contains adequate amounts of EAA
-all animal protein is complete

18
Q

incomplete protein

A

lacking adequate in 1+ or more EAA
-plants often lack lysine or methionine -

19
Q

whatever AA is lacking is called

20
Q

protein quality

A

ability of a food and its dietary protein to provide nitrogen and amino acid for needs
-growth, maintenance, and repair of cells and tissues

21
Q

PDCAA

A

protein quality score
from 0.0 to 1.0

22
Q

factors that impact protein quality

A
  1. completeness
  2. bioavailablity of EAA
  3. protein density
  4. plant vs animal protein
23
Q

limiting amino acid in plants

A

either lysine or methionine

24
Q

sources high in protein

A

meat, dairy, legumes, nuts

24
sources low in protein
starch, most plants, fruit
24
quinoa
complete protein with low protein density
25
beans
incomplete protein with high protein density
26
vegan protein recommendations
0.8 g/kg bw + add 10% to RDA
27
vegan diet benefits
-more fiber -less CVD - decrease sat fat -more vit C -more folate -more magnesium -more potassium
28
vegan diet limitations
increase starch decrease protein decrease B12, calcium, iron, omega 3
29
PKU
cant metabolize phenyalanine - missing enzyme PAH that metabolizes PHE to tyrosine - toxic to PHE
30
conditionally EAA
we can make them by only from EAA - when EAA is missing the CEAA becomes essential
31
people with PKU should avoid
animal proteins, quinoa, high protein, aspartame
32
people with PKU should monitor
plant food, fruit, and vegetables cereals and many flour products
33
protein digestion in stomach
proteases, pepsin, HCL
34
protein digestion in small intestine
pancreatic and mucosa cell proteases
35
proteases
pepsinogen enteropeptidase trypsinogen
36
pepsinogen
converts to pepsin - in stomach - pro- enzyme - hcl pepsin can come back and activate it
37
enteropeptidase
made in mucosa cells activates typsinogen
38
trypsinogen
made in pancreas - trypsinogen converts trypsin -enteropeptidase converts/ activates to trypsin
39