In an alpha helix - Study guides, Class notes & Summaries

UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Exam Questions With Correct Answers Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? - answerProline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Whi...

Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? - correct answer Proline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the affinity of hemoglobin for oxygen? a) decrease in proto...

Helix Review Exam 2 Questions & Answers 2024/2025 A leucine zipper is composed of two dimerized alpha helices. Hydrogen bonding WITHIN each alpha helix is an example of which of the following? a. primary structure b. quaternary structure c. tertiary structure d. secondary structure - ANSWERSd. secondary structure The octameric histone core is composed of four different histone proteins, assembled in a stepwise manner. Once the core octamer has been formed, DNA wraps around it to form...

Helix Test Questions & Answers 2024/2025 Helix-Turn-Helix - ANSWERSdna binding motif which has two alpha helices connected by a turn zinc finger - ANSWERSa DNA-binding motif that typifies a class of transcription factor leucine zipper motif - ANSWERSA structural motif found in a number of proteins (some of the DNA-binding regulatory proteins) in which leucyl residues align along one edge of the helix and can interdigitate with a similar structure on another protein molecule What ar...

A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure. - correct answer alpha helix One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds. - correct answer beta sheet In a polypeptide chain, the first amino acid has an exposed _______ - correct answer amino group ...

UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Correctly Answered To Score A+ Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? Proline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the fol...

BIO 100 Practice Questions with Verified Solutions **What does the mass number represent?** It represents the total number of protons and neutrons in an isotope. **Where does the mitotic spindle attach to chromosomes?** It attaches at the centromere. **What type of solution is ideal for plant cells?** Hypotonic solution. **What makes up a nucleotide?** A nucleotide consists of a 5-carbon sugar, a phosphate group, and a nitrogenous base. **How many ATP molecules are prod...

UNIT 1 - Quizzes and Exam, UNE medical biochemistry Unit 1 Test Correctly Answered To Score A+ Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? Proline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the fol...

UNIT 1 - Quizzes And Exam UNE Medical Biochemistry Unit 1 Graded A Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? ️Proline. It is considered a 'helix breaker' and would not be found in an alpha helix; all other residues are nonpolar hydrophobic and could reside in a transmemebrane domain. Changes in the physiological variables listed below can alter the affinity of hemoglobin for oxygen. Which of the following will lower the...

The tertiary level of 3D protein structure is stabilized by a) ester bonds only b) hydrogen bonds only c) interaction with the molecular environment d) glycosidic bonds e) none of these is correct correct answers c) interaction with the molecular environment Which one of these chemical bonds is planar? a) C-C b) peptide bond c) glycosidic bond d) hydrogen bond e) ionic bond correct answers b) peptide bond in the figure the protein structure depicted by the letter D can be bes...