2.3 protein note

2.3 protein note - -1PROTEINS a polymer made of a long...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
- 1 - PROTEINS - a polymer made of a long chain of amino acids (monomers) - proteins differ in the sequence and number of amino acids - changes in the sequence of the amino acids effect the overall structure and functioning of the protein - the amino acids can be polar (because of the R group) which can lead the protein to have greater hydrophilic tendencies or non-polar which can lead the protein to have greater hydrophobic properties Examples : 1. enzymes (lipase, amylase) 2. hormones (insulin) 3. antibodies 4. membrane proteins 5. keratin (hair, nails, wool, horns, feathers) Functions: - provides energy as a last resort if no stored body fat and no food is available - structural component or building blocks (keratin – hair, nails, wool, horn, feathers) - passive transport (transmembrane proteins like the voltage sensitive sodium gate or passive sodium channel) - active transport (transmembrane protein like the sodium/potassium pump and the hydrogen pump) - immunity (antibodies) - catalyst (enzymes like amylase, catalase, NADH dehydrogenase, etc.) -
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/06/2009 for the course BIO BLG143 taught by Professor Kimberleygilbride during the Spring '09 term at Ryerson.

Page1 / 6

2.3 protein note - -1PROTEINS a polymer made of a long...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online