Textbook Notes (381,094)
CA (168,350)
UTSC (19,304)
BIOA01H3 (202)
Chapter 3

Chapter 3 Study Guide

7 Pages

Biological Sciences
Course Code
Mark Fitzpatrick

This preview shows pages 1-2. Sign up to view the full 7 pages of the document.
x Energy is consumed making a polymer
x The reverse is a hydrolysis reaction t a water molecule is used to break the covalent bonds
between the monomers
x Energy is released
x Most molecules are polymers and are present in all organisms in roughly the same proportions
3.2 What are the chemical structures and functions of proteins?
x Function of proteins: structural support, protection, transport, catalysis, defence, regulation,
and movement
x Proteins are made from 20 different amino acids
x All proteins consist of a polypeptide chain t single unbranched chain of amino acids
x The composition of a protein: relative amounts of each amino acid present
x The sequence of amino acids in the chain determines the protein structure and function
x Amino acids have carboxyl and amino groups t they function as both acid and base
x dZu]v}][r-carbon is asymmetrical; therefore there are two kinds of amino acids L- and
D-. Only L- are found in organisms.
x The side chains or R-groups also have functional groups
x Amino acids are grouped based on these side chains
o Electrically charged
Aspartic Acid
Glutamic Acid
o Polar not uncharged (hydrophilic)
o Nonpolar (hydrophobic)

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California

Only pages 1-2 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Don't have an account?

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.