Iowa State University / Leader: / Lauren
Course: / Biol 212
Instructor: / Dr. Coffman/Powell-Coffman
Date: / 9/5/2017
- Order smallest to largest
- Amino acid
- Describe or draw the following levels or protein structure.
- What interactions occur for each level of protein structure?
- How are proteins made? Draw an example.
- How are proteins broken down? Draw an example.
- Define Enzyme
- What is the fluid mosaic model?Draw a diagram.
- What is the purpose of proteins in the cell?
- Integral membrane proteins are also referred to as what? Why?
- Give an example of a peripheral membrane protein function
- An ion channel is what kind of membrane protein? Draw a diagram.
- Draw a diagram of a membrane. Indicate where the following side chains would be found in a transmembrane protein.
electron atom amino protein
covalent bonds, backbone, individual amino acids
Back bone N C C N C C N
alpha helix, beta pleated sheet
hydrogen bonds oh H on nirtogen to double bonded O
disrupted by heating
side chain interactions - hydrogen bonds hydrophobic interactions, covalent, ionic
multiple protein complex
van der Waals bonds, hydrogen bonds, ionic bonds, or covalent bonds
requires water to form peptide bond
bond between positive animo with negative carboxyl
protein that accelerate the conversion of reactants to products. They do not change the energy relationships between reactants and products
A model that describes the structure of cell membranes. In this model, a flexible layer made of lipid molecules is interspersed with large protein molecules that act as channels through which other molecules enter and leave the cell.
Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs. Enzymes carry out almost all of the thousands of chemical reactions that take place in cells.
trans membrane proteins
The regulatory protein subunits of many ion channels and transmembrane receptors
call to cell signaling
Polar - hydrophilic (tips of membrane)
Nonpolar- hydrophobic (inside membrane)
Charged - hydrophilic (tips of membrane)