Alpha helix Study guides, Class notes & Summaries

BCH403 PRACTICE TEST QUESTIONS WITH CERTIFIED ANSWERS E1: Which of the following statements is true regarding the hydrophobic effect? - Answer-Non - Polar molecules are driven together in order to maximize the entropy of water. E1: The peptide in question 17 is dissolved into a solution that has a pH of 6.5. Under these conditions the net charge of the peptide is - Answer-+1 E1: A glycine residue is disruptive to the stability of an a-helix or a b-strand because: - Answer-It's R-group is...

AP Biology - The Chemistry of Life Latest Update Already Passed 4 classes of organic molecules 1. carbohydrates 2. proteins 3. lipids 4. nucleic acids acid substance that increases the molarity of hydrogen ions in a solution, decreasing pH (simultaneously diminishes the molarity of hydroxide ions, because product of the molarities of both is always 10^-14) adhesion the tendency of water molecules to stick to other substances; enables transportation of H2O against gravity in vascular...

What is the basic structure of an amino acid? What do they look like? - amino group (NH2 or NH3), carboxyl group (COO or COOH), alpha carbon (C), and variable group How do you identify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged? - Non-polar/hydrophobic - end with CH or "can't have" water. Polar - end with OH, SH, or NH. Charged - end with a charge what kinds of bonds do each of the 3 different types of side chains make? - ionic, hydrophobic/non- pola...

AP Biology- Biochemistry Latest Update 100% Correct adhesion attraction between different kinds of molecules alkaline synonym for basic allosteric inhibition two active sites, one for a substrate and one for an inhibitor alpha helix secondary structure form of a protein; human hair (keratin) amine nitrogen bonded to two hydrogens and to the carbon skeleton amylopectin more complex storage polysaccharide form of starch amylose simplest storage polysaccharide form of starch...

BIO 161 midterm 1 cal poly Latest Version 100% Pass Question 1: What are the fundamental elements found in the molecular structure of proteins? - a. oxygen, carbon, nitrogen, hydrogen, amino acid side chain - b. nitrogen, oxygen, carbon, hydrogen, amino acid backbone - c. nitrogen, hydrogen, carbon, oxygen, amino acid ring - d. hydrogen, oxygen, carbon, nitrogen, amino acid group - Answer: a. oxygen, carbon, nitrogen, hydrogen, amino acid side chain Explanation: Proteins are com...

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...

The Structure of Amino Acids correct answers Amino group, carboxyl group, and R group attached to alpha carbon What is the carbon attached to the amino group, carboxyl group, and R group? correct answers Alpha carbon What are the carbons after the alpha carbon? (in the correct order away from the alpha) correct answers Beta, gamma, delta What is the pI? correct answers Isoelectric point of the Amino Acid titration curve What is the point of the Amino Acid curve? correct answers To ta...

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...

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...

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...