Labeling
Structure
Bonds
Functions
Amino Acids
100
What structure and bond is shown in the image?
Primary Structure and Peptide bond.
100
In what order do you write a primary structure sequence? Where is this sequence coming from?
You start with the amino group and end with the carboxyl group and the sequence comes from the DNA.
100
True or False: hydrogen and Carbon are polar bonds.
False, they are non- polar due to this similarity in electronegativity values
100
What is the function of digestive enzymes?
Help in food digestion by catabolizing nutrients into monomeric units
100
True or false
The central carbon in an amino acid forms four covalent bonds
if so, what are the 4 covalent bonds?
True.
The 4 covalent bonds are the amino group, the carboxyl group, the hydrogen atom, and the R group.
200
What protein structure is displayed?
Tertiary
200
Why do R groups stick out of the alpha helix spiral?
So the R group can interact with other parts within the protein or with other molecules.
200
Name the 4 types of bonds
Ionic, polar, covalent, and Hydrogen
200
What type of protein carries substances in the blood or lymph through the body?
Transport proteins
200
Why is "amino acid" an appropriate name?
Amino acids have an amino group along with a carboxyl group that acts as an acid.
300
Fill in the blanks for this Hemoglobin model:
1. B chain
2. A chain
3. Heme
300
What type of shape is a Tertiary Structure?
Three-dimensional shape of a protein.
300
Where on the pH scale would a solution of C6H12O6 be found?
7, neutral
300
What type of protein is responsible for protecting the body from foreign pathogens?
Defense proteins
300
Does every amino acid have an R-group that is distinctive in terms of chemical structure and function?
Yes!
each of the 20 standard amino acids has a unique R-group. This is what gives each amino acid it’s unique chemical behavior and role in biological systems.
400
Fill in the blanks in regards to the secondary structure diagram:
Amino Acid(s)
Hydrogen Bond
Alpha Helix
Beta Pleated Sheet
400
Why is Quaternary Structure important?
Allows a protein to have multiple functions.
400
How does the number of nonpolar covalent bonds compare to the number of polar covalent bonds within a single molecule of cholesterol?
Cholesterol has more nonpolar covalent bonds than polar covalent bonds.
400
What is the function of hormones?
Coordinate different body systems’ activity.
500
Give an example of a structural protein, and explain the function of structural proteins.
Actin, tubulin, keratin. They construct different structures, like the cytoskeleton.