Proteins Flashcards
How many essential amino acid are there?
10
Is protein an essential or non- essential nutrient?
Essential
What is true protein?
Nitrogen only found in amino acids
What is crude protein?
True protein and NPN
Why do producers only want the specific amount of protein that maximizes productivity in their animals?
Because protein is one of the most costly nutrients found in feedstuff
Daily protein intake can be calculated by..
DM x (% protein/100)
Around what percentage of dry matter is protein?
50%
What is protein made of?
C, H, O, N (S and P)
What is the common unit of proteins?
Amino acids
What are amino acids linked by?
Peptide bonds
Does the percent of protein change over time?
No
What is an example of protein function in cell membrane?
The sodium- potassium pump for glucose absorption
Proteins are the principal what?
Organic chemical constituent
What are the 6 types of proteins we can find in the body?
Fibrous, motor, hormones, transport, immune, energy
Collagen and elastin are a what type of protein?
Fibrous
What are 2 motor or contractile proteins?
Actin and myosin
Immune proteins…
Antibodies
Why can proteins b considered an energy source?
Because they are usually the last dietary ingredient to be used for energy
Why would we need protein on continuos supply?
Because of the metabolic turnover process
What percentage is N in a protein molecule?
Approx.16%
Which protein structures are linear and linked by peptide bonds?
Primary
A structure with a chain twisting into coils and has H-bonds?
Secondary
If secondary structures group and become globular, what is it called?
Tertiary
The large protein complex that animals actually eat and that is denatured by enzymes is?
Quarternary
