Amino Acids And Proteins
Compiled By Simon Mwangi
Edition: 2024/25
, Science | Biochemistry I of X pages
1. What groups are on the basic structure of an amino acid?
Amino group, carboxyl group, hydrogen and R which surround an alpha carbon
2. What configuration is prominent in proteins and peptides, trans or cis?
Trans, so they dont interfere with eachother
3. How many different amino acids are there in proteins?
20
4. What is the main carbon in an amino acid called?
Alpha carbon
5. What is the most simple amino acid?
Glycine
6. What is the r group in glycine?
Hydrogen
7. Symbol for glycine
Gly, G
8. What is the R in asparagine?
CH2 and CONH2
9. Symbol for asparagine
Asn, N
10. What is the R group in glutamic acid?
CH2, CH2 and COOH
11. Symbol for glutamic acid
Glu, E
12. What is the R group in Tyrosine?
CH2, phenyl group, OH
13. Symbol for tyrosine
Tyr, Y
14. How to tell L from D amino acids?
Read clockwise, if CO->R->N then it is L
15. What does it mean that amino acids are amphoteric?
They have both acid and basic group
16. What does pKa tell you?
Strength of an acid
Biochemistry 2024/25 Edition