Bchm 307 - Study guides, Class notes & Summaries

BCHM 307 EXAM 2 QUESTIONS WITH ALL ANSWERS REVISED AND UPDATED A short nucleic acid sequence, such as is required by DNA polymerase, is called a(n) - Answer-primer A:T base pairs contain ____ hydrogen bonds, and G:C base pairs contain ____ hydrogen bonds. - Answer-2:3 The first of three steps in mRNA modification is addition of a - Answer-5' cap Nucleotides are added to the ______ of the newly synthesized DNA strand - Answer-3' end The polymerase that is primarily responsible for...

BCHM 307 QUIZ 5 TESTED QUESTIONS WITH REVISED ANSWERS The carbon fixing reactions occur in the _______. - Answer-stroma The production of one molecule of glucose requires ________. - Answer-6 CO2, 18 ATP, 12 NADPH What part of the chloroplast is the site of energy-transducing reactions of photosynthesis? - Answer-thylakoid membrane Which of the following shows the correct movement of electrons in the Z-scheme of photosynthesis? - Answer-H2O -> P680 -> plastoquinone -> cytochr...

BCHM 307 FINAL QUESTIONS WITH ALL CORRECT ANSWERS GRADED A+ The cytochromes undergo which of the following oxidation reactions? - Answer-Fe2+ → Fe3+ Which of the following is observed in the mechanism of citrate synthase? - Answer-an aspartic acid residue acts as a base, deprotonating acetyl-CoA What part of the chloroplast is the site of the energy-transducing reactions of photosynthesis? - Answer-thylakoid membrane In the malate-aspartate shuttle, _____ is reduced to _____ in the c...

BCHM 307 QUIZ 4 EXAM QUESTIONS WITH CERTIFIED ANSWERS Tertiary - Answer-What level of protein structure is characterized by the 3-dimensional structure of an entire polypeptide including amino acid side chains? loss of water - Answer-The formation of a dipeptide from two amino acids requires _________ Primary - Answer-What level of protein structure is characterized by the amino acid sequence? 2 - Answer-At physiological pH, all amino acids have at least ________ charged groups Gly...

Name the amino acids that are attached to the 3' end of the E. Coli tRNA molecules with the anticodon sequences a. GUG b. GUU, or c. CGU. - Answer a. tRNA 3' GUG 5' i. 5' CAC 3' mRNA-Histidine b. tRNA 3' UUG 5' i. 5'AAC 3' mRNA-Asparagine c. tRNA 3' UGC 5' i. 5'ACG 3' mRNA-Threonine

If carbon dioxide is used as a substrate, the major products of rubisco are _________; if oxygen is used as a substrate, the major products are ______. - Answer 2 molecules of 3-phosphoglycerate; 2-phosphoglycolate and 3- phosphoglycerate Complete the following reaction: P680 + light → ______ → ________. - Answer P680*; P680+ + e-

During the oxidation of water, where do the protons go? - Answer thylakoid lumen The products of the light reactions, ATP and NADPH, are used by _________ and ___________, respectively. - Answer phosphoglycerate kinase; glyceraldehyde-3- phosphate dehydrogenase The P680 of photosystem II is composed of ____________. - Answer two chlorophylls

Primary - Answer What level of protein structure is characterized by the amino acid sequence? 2 - Answer At physiological pH, all amino acids have at least ________ charged groups Gly - Answer What is the C-terminal amino acid in the pentapeptide Val-Leu-Arg- Ser-Gly?

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