module 5 proteins Flashcards
what does panacea mean
“cure all”
What is a protein
- component of every living cell
- made up of AA
- Every AA contains N
what is the primary structure of a protein
linear order of amino acids
what is the secondary structure of a protein
the shapes within the protein
what is the tertiary structure of a protein
final 3-D shape of protein
what is the structure/function relationships with proteins
the AA sequence (primary structure) of a protein determine its final 3D shape
T or F Altering amino acid sequence can change a proteins function dramatically
True
What is the structure of hemoglobin protein
- RBC
- full of hemoglobin
- 4 identical protein units
what does protein do when regulating body processes
produces some hormones like insulin and glucagon
contains enzymes like lipase, amylase and trypsin
Neurotransmitters; serotonin
what do proteins do with growth and repair of tissues
muscle protein: actin and myosin
collagen plays a big structural role
what is normal turnover
the breaking down and replacing of tissues and organs
what does protein immune defence do
create antibodies
what is protein transportation
hemoglobin: transports oxygen
transferrin: iron taxi (blood transport protein)
what does protein do for energy
any protein consumed may be digested and resulting AA used for energy (4Kcal)
T or F protein is the least “expensive” form of Kcal for the body
False its the most
what is protein quality
digestibility of protein
types of AA available
proportion of AA in protein
what is an example of one well digested protein
animal protein
T or F proteins from grain origins make great digestion and absorptions
False, animal origins is better
what is the DRI value for protein
10-35% total Kcal
how many grams of protein should adults have
0.8g/kg body weight
what is the conversion from lb to kg
divide by 2.2
who is the most at risk for adequate protein intake
elders
do athletes need more protein
yes 1.2-1.7g
t or f high protein foods are using high in fat
true
