Proteins

Proteins or chains of many amino acids are:

• Monomer

• Dimer

• Trimer

• Polymer

Although there are hundreds of thousands of different proteins, there are only _____ different types of amino acids.

• 5

• 10

• 15

• 20

Tags

NGSS.HS-LS1-6

What type of bonds hold the chains of amino acids together?

• Hydrogen

• Peptide

• carbon

The key difference between primary, secondary, and tertiary protein structures lies in their level of organization: primary structure is the amino ​ (a)   secondary structure is local ​ (b)   patterns tertiary structure is the overall ​ (c)   of a single polypeptide chain

• acid sequence
• folding
• 3D shape

In amino acids the _____ group is a variable group of atoms which distinguishes one amino acid from another and determines it unique properties.

• H

• N

• R

• O

Tags

NGSS.HS-LS1-6

Long strands of amino acids that coil about themselves would be the _______________

• Primary structure

• Seconday structure

• Tertiary structure

Which determines the proteins 3-D structure and its specific function?

• Sequence of amino acids

• Primary structure

• Secondary structure

• Tertiary structure

Tags

NGSS.HS-LS1-1

The ___________ structure of a protein, which refers to its overall three-dimensional shape, is most closely associated with its function because this shape determines how the protein interacts with other molecules. 

• Primary

• Secondary

• Tertiary

Tags

NGSS.HS-LS1-1

Match the following proteins and their functions

• Keratins

• control blood sugar

• enzymes

• strengthen hair, nails, horns, and beaks

• antibodies

• bind to bacteria or viruses to help protect the body

• Collagens and Elastin

• provide support for connective tissues

  Tendons, ligaments

• insulin

• carry out all the chemical reactions in the body