Alpha helix - Study guides, Class notes & Summaries

Test Bank for Nutrition for Health and Health Care, 8th Edition by DeBruyne Pinna If a person were to eat a diet that provided carbohydrate, fat, and micronutrients, but very little protein, for example if he or she ate only whole-wheat pita bread with olive oil, body would manufacture amino acids to make essential proteins from fatty acids and glycogen. metabolism would decrease to conserve amino acids until protein intake was resumed. liver would recirculate amino acids instead ...

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...

Typical Van der Waals energies are about: correct answers 2-4 kJ/mol A possible drug to treat COVID-19 has been discovered and is known to be a weak acid. At the pH of blood (7.4) the concentrations of acid and conjugate base are 0.075 and 0.025 respectively. What is its pKa? correct answers 3.00 What is the [A-]/[HA] ratio whent he weak acid is in solution alone pH unit above its pKa? correct answers 10:1 What are the primary chemical components present in a phosphate buffer at pH 7.4?...

UNIT 1 - Quizzes And Exam, UNE Medical Biochemistry Unit 1 Test Questions And Answers. 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 hemoglob...

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 ...

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...

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...

UNE medical biochemistry Unit 1 Test Questions & Answers 2024 Which of the following amino acid would not be commonly found in the middle of a an α-helical domain? - 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...

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...

Biochemistry Study Guide Questions and Answers Rated A+ What unique feature of enzymes allows them to be highly specific for their substrates? The unique three-dimensional shape of an enzyme allows it to fit only specific substrates, much like a key in a lock. How does the structure of glycogen contribute to its function as an energy reserve? Glycogen's branched structure allows for rapid mobilization of glucose when energy is needed quickly. What is the significance of the ...