- Download the worksheet to save time writing
- Start solving the practice problems
- If you're stuck, watch the video solutions
- See your summary to get more insights
What is the primary purpose of titration in a laboratory setting?
Why are buffers crucial for enzyme function in living systems?
Why are amino acid abbreviations important in biochemistry?
What is a potential consequence of not memorizing amino acid abbreviations in biochemistry?
Why is the one-letter code 'M' assigned to Methionine?
Why do some bacteria use D amino acids in their cell walls?
Why are essential amino acids critical for survival?
Which characteristic is common to all nonpolar amino acids?
What structural feature do all aromatic amino acids share?
What is the significance of the nitrogen component in asparagine's structure?
What happens to the charge of aspartic acid when it donates a hydrogen ion to become aspartate?
Using the mnemonic for arginine, identify the unique feature of its side chain.
Why is it important to know the ballpark pKa values of amino and carboxyl groups?
At what pH will tyrosine's R group become negatively charged?
What is the isoelectric point (pI) of a molecule?
Which amino acid is represented by 'yucky' in the mnemonic?
At a pH of 5, what is the predominant form of an amino acid with a pKa of 2.5 for its carboxyl group and 9.5 for its amino group?
What is the isoelectric point (pI) of histidine?
If the pH of a solution is 5.0 and the pKa of the acid is 4.0, what is the ratio of the concentration of conjugate base to conjugate acid?
Synthesize the steps involved in the dehydration synthesis of a peptide bond between two amino acids.
How might a mutation that changes the primary structure of a protein affect its function?
Which mnemonic can help identify nonpolar amino acids for substitution?
How does the positioning of carbonyl groups affect peptide structure?
A peptide contains a histidine residue with a pKa of 6.0. If the microenvironment shifts the pKa to 7.0, what is the net charge of the histidine residue at pH 7.4?
Given a peptide with pKa values of 2.5, 5.0, 7.5, and 10.0, and a neutral net charge between 5.0 and 7.5, what is the isoelectric point?
Which two amino acids are isomers and have identical masses?