Study guides, Class notes & Summaries

BIOCHEM MODULE 4 EXAM VERIFIED ANSWERS 100%2023/2024

BIOCHEMISTRY LAB REPORT 3 2023| PORTAGE LEARNING|WITH PROCEDURES, EXPLANATION AND FINAL RESULTS.HIGHLY VERIFIRD Experiment #: Lab 3 Title: Enzymatic Activity of Lactase. Purpose: The purpose and goals of this experiment are 1. Isolate an enzyme. The student should be able to explain how to isolate an enzyme and be able to isolate an enzyme in the lab. The student should also be able to explain and perform 2. Assay enzyme activity spectrophotometrically, 3. Investigate the temperature ef...

Which molecule is an ester - correct answer All of the carbon backbones from amino acids end up as intermediates in the ________. - correct answer citric acid cycle When 2-butene reacts completely with bromine, the product is - correct answer 2,3-dibromobutane. Amino acids that can be synthesized in the body are called ______ amino acids. - correct answer nonessential Which conversion is accomplished during glycolysis? - correct answer glucose to pyruvate Every turn of the citric ...

Br2, AlBr3 or FeBr3 - correct answer Installation of a bromine atom on an aromatic ring. Br+ is the electrophile HNO3, H2SO4 - correct answer nitration of benzene (NO2). NO2+ is the electrophile H2SO4 or SO3/H2SO4 - correct answer sulfonation of a benzene. HSO3+ is the electrophile Friedal-crafts alkylation of benzene - correct answer C w/ 3 alkyl groups, LG + LA or C w/ 3 alkyl groups, OH + H2SO4 or C w/ 2 alkyl groups, double bond + H2SO4 3' carbocation is the electrophile. ...

Calculate volume 0.2 NaOH and # equivalence points for titration of 25mL 0.1 H3PO4 - correct answer 2 eq points- 0.1M x 0.025L = 0.0025 mol H3PO4 mol H3PO4 = mol added NaOH 0.0025 mol NaOH / 0.2 M = 0.0125 L NaOH added Calculate equivalence point volumes for titration of 25.00 mL of 0.060 M HCl and 0.10 M H3PO4 with 0.075 M NaOH - correct answer exp 1 calculations find moles total acid, response factor - correct answer Coefficient that makes the relative response of a detector to analy...

if the p-value is greater than 0.1, we generally conclude the data are consistent with the null hypothesis - correct answer true what is the best way to characterize the random error present in a measurement? - correct answer take replicate measurements of your analytes and using the standard deviation and a t-table specify an error bar with a confidence limit statistical interference assesses whether an observed phenomenon in the data can reasonably be attributed to chance or not - correc...

What is ground state electron configuration of Co? [Ar]3d^9 [Ar]4s^1 3d^8 [Ar]4s^2 3d^7 [Ar]4s^2 4p^6 4d^1 - correct answer [Ar]4s^2 3d^7 molybdenum has an anomalous electron configuration. using the shorthand notation for electron configurations, write the electron configuration A) [kr]5s 4d^6 B) [kr]5s 4d^0 5p^6 C) [kr]5s^1 4d^5 D) [kr]5s^2 4d^4 - correct answer C) [kr]5s^1 4d^5 the symbol [Kr] represents a) 4s^2 4p^6 b) 1s^2 2s^2 2p^6 3s^6 4s^2 4p^6 c) 1s^2 2s^2 2p^6 3s^6 4s...

In an individual who is starving or fasting, the body meets its need for glucose first by the process of ________, and then by the process of ________. - ANSWERS>>>glycogenolysis; gluconeogenesis The pathway followed by glucose when energy is needed is - ANSWERS>>>glycolysis. The alcohol functional group has - ANSWERS>>>a carbon-oxygen-hydrogen group. The commonly accepted mechanism for explaining alkene reactions involves formation of - ANSWERS>>>carboc...

In an individual who is starving or fasting, the body meets its need for glucose first by the process of ________, and then by the process of ________. - ANSWERS>>>glycogenolysis; gluconeogenesis The pathway followed by glucose when energy is needed is - ANSWERS>>>glycolysis. The alcohol functional group has - ANSWERS>>>a carbon-oxygen-hydrogen group. The commonly accepted mechanism for explaining alkene reactions involves formation of - ANSWERS>>>carboc...

In an individual who is starving or fasting, the body meets its need for glucose first by the process of ________, and then by the process of ________. - ANSWERS>>>glycogenolysis; gluconeogenesis The pathway followed by glucose when energy is needed is - ANSWERS>>>glycolysis. The alcohol functional group has - ANSWERS>>>a carbon-oxygen-hydrogen group. The commonly accepted mechanism for explaining alkene reactions involves formation of - ANSWERS>>>carboc...

What is the degree of substitution? <<ANSWERS>>>The number of alkyl groups a specific carbon is bonded to (more alkyl groups means more stable) What reagents are required in a dissolving metal reduction? <<ANSWERS>>>Na or Li, ammonia (NH3) as solvent Provide a summary of dissolving metal reduction <<ANSWERS>>>2 hydrogens (one equivalent) are added to an alkyne to form the E alkene (anti addition) What is the stereochemistry of the dissolving ...

What is the degree of substitution? <<ANSWERS>>>The number of alkyl groups a specific carbon is bonded to (more alkyl groups means more stable) What reagents are required in a dissolving metal reduction? <<ANSWERS>>>Na or Li, ammonia (NH3) as solvent Provide a summary of dissolving metal reduction <<ANSWERS>>>2 hydrogens (one equivalent) are added to an alkyne to form the E alkene (anti addition) What is the stereochemistry of the dissolving ...