Name and draw the chemical structure of the three aromatic amino acids. Which groups in an RNA molecule would interact well with them?
Name and draw the chemical structure of the three aromatic amino acids. Which groups in an...
Below are pairs of amino acids that interact with each other via their R groups to maintain protein structure. Which will experience a change in their R-group interaction (eithera gain, loss or change specific type of interaction) when placed in a basic (pH 10) environment? (Select any/all that apply) Val, Ala GIn, Ser Asn, Cys Asp, Arg 1 nts Below are pairs of amino acids that interact with each other via their R groups to maintain protein structure. Which will...
Homework #11 (5 points) 1. Draw two amino acids. Circle around the carboxyl ends. Put a double line und and the three-letter abbreviation for each amino acid. two amino acids. Circle the central carbon atoms. Underline the amino ends. Carboxyl ends. Put a double line under the R groups/ side chains. Write the name 2. How do enzymes increase the rate of chemical reactions? 3. What type of bond joins two amino acids together? 4. What are the three types...
1 - Draw the chemical structure of ATP. Describe what is the same, and what is different from the 'A' in an RNA strand. Besides being used to make RNA, what other biological importance does ATP have? 2 - What is the central paradigm of Molecular Biology? What are the molecular machineries that facilitate each step? 3 - Draw the chemical structure of the amino acids glycine, alanine, valine, leucine, and isoleucine. Give a reason why an organism would need...
5. Which of the 20 standard amino acids are a. Cyclic b. Aromatic C. Sometimes charged at physiological pH d. Technically not hydrophobic, polar, or charged e. Basic f. Acidic . Sulfur containing 6. Estimate the net charge of a His-His-His-His tetrapeptide at pH 6.0 7. The artificial non-nutritive sweetener aspartame is a dipeptide with the sequence Asp-Phe. The carboxyl terminus is methylated. Draw the structure of aspartame at pH 7.0. Sketch a titration curve for the amino acid cysteine,...
Draw the structure of five different amino acids with the one and three letter codes at pH of 14. Do not draw glycine, alanine, or glutamate. (16 points).
Which amino acids of proteins usually participate in interaction with carbohydrate molecules? Name three of them.
“Amino acids used in making a polypeptide have an amino group and carboxyl group, and these groups can be present on any carbon atoms.” Is that a correct statement? Why so? What is the basis for classification of amino acids to non-polar (but not aromatic), polar, and two oppositely charged (at physiological pH) amino acids? Provide examples with their exact name, three letter and single letter codes.
HW Question: Draw the amino acids, lysine and valine joined by a peptide bond. Next, place a square around the peptide bond within the dipeptide molecule. Finally circle all the atoms which could interact with a water molecule.
Draw the molecular structure of a tripeptide chain. Indicate which amino acid was added first (assuming it was translated by a ribosome) by numbering the R groups as R1, R2, and R3 (you do not need to draw the structures of actual R groups for specific amino acids).
True/False 1) The smallest chemical units of matter are elements. 2) The side groups of amino acids can interact with each other, and with other molecules. 3) Monosaccharides are usually found in cyclic forms.