Module 1 (Proteins) Flashcards
P_____ p______ s______: sequences of a c____ of a_____ a_____
Primary protein structure, chain of amino acids
S_______ protein structure, occurs when the sequence of amino acids are linked by h______ b______
Secondary protein structure, hydrogen bonds
T_______ structure: occurs when certain a_______ are present between a_______ h_______ and b_______ s_______
Tertiary structure, attractions, alpha helices, beta sheets
Q_______ structure: protein consisting of m____ t____ o_____ amino acid chain
Quaternary structure, more than one
Proteins are made of many small molecule called a_____ a_____ that connect to create one large molecule (p_______)
Amino acids, polypeptide
Amino acids always have an amino group, carboxyl group, R group, and an a____ c____ with a h_____ bonded to it
alpha carbon, hydrogen
The ___ g____ is the determinant for the amino acid
R group
Look at the most d_____ part to categorize the R group as nonpolar, polar, negatively charged, or positively charged. Polar molecules have oxygen, fluorine, NH, OH
distal
All amino acids have some sort of polar charge because of their backbone. The R group is what actually c_______ the amino acid as polar or non polar
Categorizes
When two amino acids bond together, the c______ g____ of one amino acid bonded to the a_____ g____ of another amino acid to form a p______ b______. W______ is taken out in this process
Carbonyl group, amino group, peptide bond
D______ in only t___ amino acids. P______ are three or m____
Dipeptide, two, polypeptide, more
Which structure determines the final form of the protein?
The primary structure
The a_____ h____ in the secondary structure: each carbonyl group in the backbone forms a h______ b_____ with an amide group
does not involve the _ ______ of amino acids
Alpha helix, hydrogen bond, R groups
B____ s____ in secondary structure: h_____ bonds form between carbonyl groups in one polypeptide and amide groups in a different part of the polypeptide. A_____strands can run in the same direction or in opposite directions
Does not involve the R-group.
Beta sheet, hydrogen, adjacent
T______ s_____: is a result of i______ that involve _ ______. Occurs when certain attractions are present between alpha helices, pleated sheets, and interactions between R-groups. Has d____ structures. Can form a h____ bond between R group. Contains d_____ bonds
Found in the ____ of a protein, s_____ them from water
Tertiary structure, interactions, R-groups, diverse, hydrogen, disulfide, middle, shields