Protein Section Flashcards
1
Q
Are proteins the most structural and functional diverse group of biomolecules?
A
- Yes
2
Q
How many amino acids contain a unique “R” group?
A
- 20 amino acids
3
Q
Can an amino acid be Nonpolar and Polar based on the R group?
A
Yes
4
Q
What are the four levels of protein structure?
A
- Primary
- Secondary
- Tertiary
- Quaternary
5
Q
What is the primary structure?
A
- Sequence of amino acids
- A peptide bond is the chemical bond
6
Q
What is the secondary structure?
A
- Polypeptides can form
- A-Helixes and B-sheets
-Hydrogen bonding
7
Q
What is the tertiary?
A
- Bonding and interactions between amino acid R groups
- ionic bonds form
8
Q
What is the quaternary?
A
- Multiple subunits that combine from a compete protein structure
9
Q
What examples of amino acids are non polar?
A
- Alanine (C3H7NO2)
- Valine (C5H11NO2)
- Cysteine (C3H7NO2S)
- Leucine ( C6H13NO2)
- proline (C5H9NO2)
- glycine (C2H5NO2)
- isoleucine (C6H13NO2)
- phenylalanine (C9H11NO2)
- methionine (C5H11NO2S)
- Tryptophan (C11H12N2O2)
10
Q
What examples of amino acids are polar?
A
- Serine (C3H7NO3)
- Threonine (C4H9NO3)
- Tyrosine (C9H11NO3)
- Asparagine (C4H8N2O3)
- Glutamine (C5H10N2O3)
11
Q
What examples of amino acids have negative charge?
A
- Aspartic Acid (C4H7NO4)
- Glutamic Acid (C5H9NO4)
12
Q
What examples of amino acids are positive charges?
A
- Lysine (C6H14N2O2)
- Arginine (C6H14N4O2)
- Histidine (C6H9N3O2)
13
Q
Why is the protein acid sequence important?
A
- Protein will inform shape- think in water
14
Q
How are secondary structures common in many proteins why?
A
- It helps predict the tertiary structure
15
Q
5 examples of proteins performing diff functions in cell?
A
- Repairing building body tissues - Collagen
- Driving metabolic reactions - Enzymes
- Maintaining pH fluid balance - Albumin
- Keeping immune system strong - antibodies
- Transporting storing nutrients - Actin
