Pharmacy Flashcards
What are proteins?
Proteins are one or more chains of repeated units connected by peptide bonds- Function is to digest and immunity from infection
What are peptide bonds?
Chemical bond formed in two molecules when the carboxyl group of one amino acid to other amino group
What are amino acids?
They are a class of molecules that contain acidic groups- they are 20 amino acids
Why are Amino acids amphoteric?
Because they have at least or acid-base groups
What is an isoelectric point?
The pH at which the net charge is equal to zero
What is a zwitterion?
Have a neutral charge
What does a structure of an amino acid consist of?
R group
Amino group
Central carbon
Carboxyl group
Which amino acids are Non-polar
Glycine, Alanine, proline, valine,leucine, isoleucine
Which amino acid are Aromatic?
They have benzyl ring that’s why aromatic.
Phenylalanine, Tyrosine, Tryptophan
Which amino acids are polar?
Asparagine, glutamine, serine, Threonine
Only group which are hydrophobic
Which amino acids are sulfur-containing
Methionine, cysteine
Which amino acids are charged?
Aspartate, Glutamate, Arginine, Lysine, Histidine
How do amino acids bind together?
By losing a good water molecule, the remaining Molecule is then called a dipeptide.
What are the four structures of proteins?
Primary- amino acid sequence
Secondary structure- interactions between adjacent amino acids (b sheets
Tertiary structure- 3D folding of polypeptide chain
Quaternary structure- multiple proteins in a complex
What are the two main protein groups?
Globular proteins- These proteins have irregular proteins, like myoglobin
Fibrous proteins- a linear strand or sheet-like structure