Class Notes (835,600)
Canada (509,275)
FNN 200 (10)
heather (2)

FNN Module 5-Edited.pdf

29 Pages
Unlock Document

Nutrition and Food
FNN 200

What is protein? Module 5 Food sources Amino acids Structure Functions 1 What is protein? Long chains of amino acid molecules in different sequences sometimes S, with various side chains attached N enters food chain through N- fixing bacteria in ____________ _______________ (alfalfa, peas, beans) 2 Food sources??? 3 1 Amino acids (AAs) _______ AAs of significance to humans. Types: indispensable (Essential AA), dispensable, conditionally indispensable EAAs used to make dispensable AAs & other N compounds Contain: amino group (N2 ), a carboxyl group (COOH), an H atom attached to a central C & a side chain Side chain often noted as R1 R 8 types of AA, based on ____________________ composition 4 R 5 6 2 Classifying amino acids 1.Isoleucine, 2.Leucine Indispensable (essential) AAs: 3.Lysine cannot be synthesized 4.Methionine in the body - must be supplied by the diet 5.Phenylalanine 6.Threonine 7.Tryptophan 8.Valine 9.Histidine 7 Classifying amino acids Dispensable (non- essential) AAs: can be synthesized in the body through ___________________ Alanine, Aspartic acid Asparagine Glutamic acid Serine 8 Classifying amino acids Conditionally indispensable AAs not synthesized at a rate to meet bodys needs Arginine Glutamine Glycine Proline Tyrosine Cyst(e)ine 9 3 Protein synthesis overview To be learned later (biochemistry) 10 Protein structure Structure determines ______________ Peptide bonds >> amino group of one AA >> carboxyl group of adjacent AA Dipeptide: 2 AA residues Tripeptide: 3 AA residues Polypeptides: many AAs> many peptide bonds (Insulin 51 AA residues) 11 Protein structure Primary (1): Linear sequence of AA residues Secondary (2): 3D elements - alpha & beta helices, sheets Tertiary (3): Orientation of 2 structure - ____________________________ Quaternary (4): Bonds between subunits (_______________) that comprise a functional protein 12 4
More Less

Related notes for FNN 200

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.