University:
McMaster University
Course:
NHW 100 | Nutrition Fundamentals
Academic year:

2021
Views:

280

Pages:

1
Author:

Sabrina S.

exam 2 content proteins and emino atids • proteins are comprex molecuits that contain carbon, hydrogen, oxugen AND nitrogen module 8 PROTEIN at: which better describes a protein going from Quaternary structure to the primary structure? - Digestion > The structure of amino auras are exacily the same except for the side chain aka R-group is aifferent → the side chain is whar makes every amino acia unique L the nstrogen is locared within the amine group of each amine acid Functions of our protein from our diet * once amino acids have been absorbed from our diet, we will use them for many important functions... O proteins are simply strings of amino acids - peptide bonds: The bonds between amino acids • Amino acids: - Alanine - Glucine - Leucine - Lusine - Phenylaianine - serine - Valine Food to function uenzymes: enzymes heip us to build, break down and make things in our bady through chemicas reactions. Otissues: many tissues are made up of structural protems. muscle cus are made up in large part of sarcomeres which are the smallest part of the muscle that allows us to contract ou muscle to create movement. • Hormones: One type of hormone we have is a peptide hormone, which is made up of amino acids and is a protern. Insulin and glucagon are examples of peptide hormones - We nave to digest dietary protein down to the smallest bits for absorption (chemical + mecharialsion) • Immune system: antibadies, part of out immune system, is made up of amino acids The smallest its are individual amino auds and di peptides • Energy: we use amino acids as a secondary or mouth- chewing is used but no pretein digesting enzymes backup energy source. we have no storage for M's so we have to break functional proteins down in (proteases) are found here order to fuer gluconegenesis and /or bioenergetics. we heys stomach- Hudrochorie aud (Ma) is produced nere to neip to deaminate has in order to use them for bioenergetics. In proten digestion. Her causes me proterns L Damunation: removing amine group to "unfera" aKa DENATURE the protem. L hu causes a preten to go from its quaternary structure to its primaty smacture Dietary Recommendations for protein * chemical digestion* small intestine - only chemical digestion takes place in me smalt intestine via prittases L prorases are made in the pancreas and secreted into the si wi pancreatic amulase and pancreatic Hoose • AMOR for protein is : 10-35% → 10-35%% of our total calories shaud come from protun L, less than 10% • deficient L greater than 35% - toxic ERA's: amino acias we need in our dict because we cant make them know them Now women do Know a newborn's (age 0.0 - 0.5 years) and a sedentary adult Anyon (Age 191) RDA NEAA'S: AM': we can maKe BCAA'S: branched appearance → our thre muscle protein heavily relies on BlAdis. KNSw them Newborns have a greater need for protein bo, growth requires C.m C.v Those conditionally ENA'S: +hose amino acids that we make, but we them from essential amino atids. So if we don't have that amino acid in our duet, then we cant maxe candinshany EA. Ex: prengalonine and turasiner unitie Tuttame becomes essenmas when we dont have prenuidenine in our i