Bchm 270 Study guides, Class notes & Summaries

BCHM 270 EXAM QUESTIONS WITH ALL ANSWERS REVISED AND UPDATED Carbohydrate digestion - Answer-1) Mouth - Alpha-amylase is released by the salivary glands - Breaks apart starch by cleaving alpha(1 to 4) bonds, leaves smaller branched oligosaccharides as it cannot cleave alpha(1 to 6) bonds - We cannot digest cellulose as we do not have enzymes to cleave beta(1 to 4) bonds) - The enzyme is stopped in the stomach due to the acidic environment 2) Small intestines - Alpha-amylase is released...

BCHM 270 EXAM QUESTIONS WITH CORRECT ANSWERS A physician would like to evaluate the elevated amounts of a gene being expressed in two different types of tumor cells in order to develop a personalized medicine. Which of the following techniques would be the most appropriate for this purpose? A. Western Blot B. Southern Blot C. Northern Blot D. Eastern Blot E. enzymatic assay - Answer-C A restriction enzyme can be used for which techniques? A. Southern blots and cloning. B. western blo...

BCHM 270 Test with Questions Solved 100% Correct |Verified Solutions In many cells, the requirement of NADPH exceeds the requirement forribose 5- phosphate. Under these conditions the pentose phosphate pathway results in the production of: a. Tricarboxylic acid (TCA) cycle intermediates. b. Glucose to be stored as glycogen. c. Amino acids for protein synthesis. d. Glycolysis intermediates. e. Pyruvate, COz and H20 - Answer

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...

Protein structure (primary) - Answer - Linear sequence of amino acids with the absence of R group interactions, connected by strong peptide bonds (require strong acids/bases, heat, and/or enzymes to bond) which have partial double bond character due to resonance, almost always in a trans conformation - Once the bond is formed, the carbonyl and amino groups are uncharged and cannot ionize, so the only charged groups are the N-terminus, C-terminus, and R groups of ionizable side chains Prot...

BCHM 270 TEST QUESTIONS WITH ANSWERS ALL CERTIFIED fatty acid a) degradation produces both FADH2 and NADH b) synthesis requires carnitine shuttle c) degradation occurs after carbohydrate-rich meal d) degradation requires an acetyl-CoA e) synthesis occurs primarily in the mitochondria - Answer-a) degradation produces both FADH2 and NADH the tissue that plays the main role in regulating the body's cholesterol balance is the a) red blood cells b) liver c) adipose tissue d) skeletal ...

Found at the exterior of a peptide embedded entirely in the cell membrane - Answer Nonpolar amino acids A, G, L, V, I, F, W, M, P + 1 charge - Answer Basic amino acids H, K, R - 1 charge - Answer Acidic amino acids D, E

How much energy is contained in a mole of photons with a wavelength of 490 nm? a. 127 kJ/mol b. 2.4 × 105 kJ/mol c. 244 kJ/mol d. 2.4 × 10-4 J/mol e. 4.1 × 10-19 J/mol - Answer c. 244 kJ/mol

BCHM 270 Final Exam With Complete Solution...