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

heat is a form of? a. kinetic tial c. activation d. catalytic - ANSWER a. kinetic An alpha helix is a type of protein_________ structure? a. primary b. seconday c. tertiary d. quartenary - ANSWER b. secondary the cytoplasmic granule of RNA and protein that reads mRNA and synthesizes proteins is called the _________, an organelle that is not bound by a membrane? a. kinetechore b. Golgi complex c. ribosome d. nucleolus - ANSWER c. ribosome ______________ is not found in DN...

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...

The right-handed alpha helix - Answer - An example of secondary structure; the alpha helix found in proteins is RIGHT-HANDED; spirals upwards in the counterclockwise direction About the alpha helix - Answer - AA side chains and H atoms on each alpha carbon project out from the axis; no noticeable hole in the middle because of atomic radii - intramolecular H bonds connect the carbonyl C of one aa residue to the peptide H in the 4th residue - H-bond are nearly parallel to the axis of the hel...

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/nonpolar, ...

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...

BCHM 307 EXAM 1 QUESTIONS WITH ANSWERS Secondary structure - Answer-the local 3-dimensional structure of the peptide backbone - there are 4 major classes of secondary structure (alpha helix, beta sheet, turns, and random coil) The alpha helix of the secondary structure - Answer-the alpha helix is a helical region of the peptide backbone that is stabilized by hydrogen bonding - carbonyl residue of each amino acid residue is hydrogen bonded to the amide group 4 residues further toward the c...

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...

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...

Which of the following differentiates the biochemical standard state from the standard state when discussing standard free energy changes? correct answers pH of 7 If a typical person hydrolyzes 100.0 mol of ATP per day, how much does this ATP weigh? (The molecular weight of ATP is 507 g/mol.) correct answers 50.7 kg A reaction is always spontaneous if correct answers the change in free energy, ΔG, is negative. Which of the following is an example of a heterotroph? correct answers yeast...

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?...