Alpha helices - Study guides, Class notes & Summaries

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...

"4 Biomolecules and Monomers - CORRECT ANSWER Protein (amino acids) Carbohydrates (simple sugars) Lipids (glycerol and fatty acids) Nuclei acids (nucleotides)" dipeptides - CORRECT ANSWER two amino acids bonded together what is the general fatty acid formula - CORRECT ANSWER CH3(CH2)nCOOH where n= an even number between 12 and 24 explain identifying saturated vs. unsaturated fats - CORRECT ANSWER saturated: only single bonds in hydrocarbon chain... unsaturated: o...

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...

Electron configuration for cations - Answer-Subtract 1 from exponent of highest n-value orbital (ex. remove from 4s before 3d) Ag+ = [Kr]5s^1 4d^9 Electron configuration for anions - Answer-Add 1 to closest orbital Cl- = [Ne]3s^2 3p^6 Atomic orbitals - Answer-s, p, d, f Primary vs secondary structures of proteins - Answer-Primary - AA chain (linked by peptide bonds) Secondary - stabilized by non-covalent bonds (alpha helices & beta sheets) Most bonds in organic compounds are - Answer-cov...

BCHM 270 MIDTERM TEST QUESTIONS WITH CORRECT ANSWERS Intramolecular disulfide bond - Answer-2 C (1 C can form disulfide bonds with other C groups) Phosphorylated - Answer-S, T, Y Alpha helix breakers - Answer-P Bulky clusters: Y, W, L, V, F Charged clusters: K, R, H, D, E Ionizable side chains - Answer-R, K, Y, C, H, E, D Scurvy - Answer-Caused by impaired hydroxylation of lysine and proline causing unstable triple helices due to vitamin C deficiency. Prion disease - Answer-P...

How are polymers formed and broken? - formed via dehydration(condensation) and broken due to hydration (hydrolysis dissolution of glycosidic bond) important amino acids - glycine= R=H very flexible proline= fixed, and very rigid R=secondary amino loop, prevent amino acid from alpha helices cystine= can form disulfide bridges methionine= also contains sulfur and is the start codon AUG

Which of the following best describes tertiary structure? correct answer: Interactions between alpha helices and beta sheets to form a domain Movement of ammonia from an amino acid to an alpha-keto acid involves a family a enzymes best categorized as which of the following? correct answer: Transferases How do most enzymes reduce the activation energy needed to move a reaction forward? correct answer: Providing an active site most complementary the transition state Domains are common ...

How are polymers formed and broken? formed via dehydration(condensation) and broken due to hydration (hydrolysis dissolution of glycosidic bond) important amino acids glycine= R=H very flexible proline= fixed, and very rigid R=secondary amino loop, prevent amino acid from alpha helices cystine= can form disulfide bridges methionine= also contains sulfur and is the start codon AUG

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 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...