According to HOMEWORKLIB RULES we can solve only one question max.
Q1
Structure of a amino acid is NH2-CHR-COOH where R can be any group.
Let two amino acid be NH2-CHR1-COOH and NH2-CHR2-COOH
For the above two amino acids to bond:--
NH2-CHR1-COOH + NH2-CHR2-COOH ====> NH2-CHR1-CO-NH-CHR2-COOH + H2O
The bond formed is -CO-NH- which is a amide.
Ketone is -CO-
Ester is R-CO-O-R
Disulphide is R-S-S-R
Aldehyde R-CO-H
A peptide bond between two amino acids is what type of functional group? Ketone O Ester...
What type of covalent bond between amino acid side chains functions in maintaining a polypeptide's specific tertiary structure? disulfide bond ionic bond hydrogen bond peptide bond hydrophobic interaction
25) What maintains the secondary structure of a protein? a) hydrophobic interactions b) hydrogen bonds between the R groups c) peptide bonds d) disulfide bonds e) hydrogen bonds between the amino group of one peptide bond and the carboxyl group of another peptide bond
Part A H3C o HẠN- o=0 - What type of tertiary interaction will be present with the above amino acid? hydrogen bonding disulfide bond O peptide bonding salt bridge hydrophobic interaction Submit Request Answer
. The covalent (ester / amide /hydrocarbon /hydrogen) bond between peptides is responsible for the (primary /secondary /tertiary /quaternary) structure of a protein. (Delete incorrect answers) (2 pts) 2. (a) Of the twenty amino acids, onlyof them are termed essential amino acids. (1pt (b) What does it mean when an amino acid is termed "essential"? (2 pts) 3. Draw an example of hydrogen bonding between the carbonyl group and the secondary NH group of two different amino acids in the...
Question 2 (10 points) Saved What type of stabilizing interaction could there be between the side chains of two cysteine amino acids? Disulfide bonds Hydrogen bonds Hydrophobic interactions Salt bridges
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...
What type of interaction would you expect between the following groups in a tertiary structure? Part A cysteine and cysteine O hydrophobic interaction O hydrogen bond O disulfide bond O salt bridge O hydrophilic interaction Submit Request Answer Part B Submit Request Answer Part B glutamate and lysine O hydrophobic interaction O hydrophilic interaction O hydrogen bond O salt bridge O disulfide bond Submit Request Answer Part C Part C serine and aspartate O hydrophobic interaction O hydrophilic interaction O...
17. Which type of interactions (forces) found in proteins is MOST APPROPRIATELY matched with the feature that follows? a. Ionic bonds: a-helical secondary structure b. Peptide bonds: association of subunits to form quaternary structure c. Hydrophobic interaction: tertiary structure d. Hydrogen bonds: covalent cross-links between olypeptides e. Cation-anion interactions: B-pleated sheet
(CHO)n-C7H1403-C7H1407 C7H107 cellulose and chitin- starch and glycogen-sucrose-galactose- maltose-fructose-fatty acids- polymer- monomer- saturated- unsaturated-glycerol-glycogen-collagen -hemoglobin-ribose- nitrogen base- chitin-phosphate group-insulin-pentose sugar-carbon- nitrogen- hydrogen-phosphorus- steroids- hydrolysis- dehydration-hydrogen bond- covalent bond-peptide bond- disulfide bond-guanine-cytosine- adenine-thymine-uracil-van der Waals-hydrophobic- sugar and phosphate bond- 26. DNA has the nitrogen baso instead of 27. In the structure of protein, the amino acids are joined together by 28. The backbone of DNA strands forms a bond between 29. These are nitrogenous bases from the type purines and 30....
1. Amino acids are considered to be either hydrophobic or hydrophilic as described by the relative polarity of their side chain. Consider a folded protein in an aqueous environment; where would the hydrophobic amino acids likely be found? -Tucked away in the middle of the folded protein -Randomly distributed throughout the protein -Exposed on the exterior surface of the folded protein 2. All proteins exhibit a primary, secondary, and tertiary structure, but not all proteins exhibit a quaternary structure. Describe...