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
What are enzymes?
Catalyse the conversation of substrates to produces by lowering activation energy. Increase the rate of chemical reaction
What are the 6 major enzymes?
Oxireductases, transferase, hydrolase, lysases, isomerise and ligases
What are the essential compounds of Nucleic Acid?
Carbon, Hydrogen, Oxygen, Nitrogen and phosphorous
What is Transcription?
DNA transcribed to make RNA. 3 major types of RNA (messenger, ribosomal, transferase) are transcribed from DNA in process of translation. mRNA type of RNA carries genetic info to make proteins
What is Translation?
mRNA translated to proteins in cytoplasm on ribosome. tRNA carries individual amino acids to the ribosomes, where they join via peptide bonds & become proteins. During translation, sequence of nucleic acids based in mRNA read in sets of three
What are the basic units of carbohydrates?
Monosaccharides
What are the functions of monosaccharides?
Produce and store energy
Can be used to form long fibres
What are disaccharides?
Dimer=2 monosaccharides
What are oligosaccharides?
Polymer of 3-20 monosaccharides