Ch 4 Practice Exam (Boucher 2022)

A1L TPN order is written for 400 mL 10% Dextrose, 300 mL 4.25% amino acids, and a total of 37 mL of additives. How much sterile water for injection should be added? a. 55 mL b. 137 mL c. 163 mL d. 263 mL

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An enzyme requires a Zn2+ ion in order to function correctly. In this case, the Zn2+ is a(n) a. apoenzyme b. coenzyme c. cofactor d. subunit 24. A substance that can bind to an enzyme at a location other than the active site and increase or decrease the activity of that enzyme is called a(n) a. subunit b. proenzyme c. modulator d. feedback inhibitor

The full form of GLP is ... ? a. Good Leader Practice b. Good Laboratory Practices C. Good Lab Practice d. Good Lab Promotion

researchers working in a chemistry lab were examined anatomical structures of the brain using concentrated formaldehyde solutions. Once their studies concluded there remained 1.5 gallons of the substance and the researcher decided to pour this down the drain. In this case, they directly violet regulations put in place by which office?1. Office of research integrity 2. Institutional animal care and use committee3. Occupational safety and health administration 4. Institutional review board

✪ H₂N. ✪ H₂N H₂N H₂N ✪ H₂N ✪ H₂N NH₂ 0 H₂N 0 NH₂ ht Biglie O ✪ H₂N NH₂ NH₂ ·00 H₂N. H₂N NH₂ A OH CO₂H V8 Protease (cat) H,O, pH 7

CH20- NH2 1. NONO2, HCİ 2. HBF4

tab caps lock You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C34H32FeN4O4, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 29.7 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample? Tap here or pull up for additional resources Q A NO 2 W S #3 E D GA 4 R % 5 F Question 9 of 17 T 6 G Y & 7 B H 8 N 9 4 +/ V M

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I don’t understand how to do part b of question 5. The other picture is my work of part a. How would changing the enzyme concentration affect Km and Vmax. The answer given to us is Vo= 0.796mM/s. I just don’t understand how to get to that answer.

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PHOTOSYNTHETIC PIGMENTS 1.6 0.7 1.4 Qy CH 0.6 1.2 Soret 0.5 1 H 0.4 0.8 0.3 COOCH 0.6 phytyl bacteriochlorophyll a 0.2 0.4 Qx 0.1 0.2 300 400 500 600 700 800 700 750 800 850 900 2 (nm) 2 (nm) Figure 4.7 Absorption (left) and fluorescence (right) spectra of bacteriochlorophyll a in diethyl ether 5. Look at this figure from Blankenship's book, Molecular Mechanisms of Photosynthesis. You can see the structure for bacteriochlorophyll a, along with its absorption spectrum. a. What is the molecular shape around the labeled carbon atom? b. What is the hybridization around that same carbon? c. Based on this structure, would you expect this molecule to absorb light in the visible spectrum? Why or why not? Absorbance Fluorescence (Arbitrary units)

the analysis of a mixture of hydrocarbon cracking products, all of which are able to be distilled, but distillation is unable to separate them cleanly. A. a pharmaceutical product containing 2 stereoisomers of the active ingredient, both of which are fairly polar, aromatic, water soluble, and decompose rather than boil. B. C. The separation of a mixture of water-soluble globular proteins of various sizes. The analysis of a mixture of reactor gases that includes methane, hydrogen, carbon dioxide, carbon monoxide, and nitrogen. D.

What effect did high and low temperatures have on enzyme activity? Why?

Please answer the rest. This is using up another one of my questions

210 200 270 260 250 What is the probability of finding this particular combination in the population? (Hint - individuals may be homozygous or heterozygous for alleles!) TPOX D5S818 PentaD Allele Size (bps) Frequency Allele Size (bps) Frequency Allele Size (bps) Frequency 6 224 0.0894 7 165 0.0029 5 389 0.0439 7 228 0.0176 8 169 0.0468 6 394 0.0102 8 232 0.3680 9 173 0.0322 7 399 0.0439 9 236 0.1950 10 177 0.0731 8 404 0.1082 10 240 0.0865 11 181 0.2339 9 409 0.1681 11 244 0.2155 12 185 0.3684 10 414 0.0994 12 248 0.0264 13 189 0.2237 11 419 0.1798 13 252 0.0015 14 193 0.0161 12 424 0.1082 Ladder Crime Sce Suspect 1 Suspect 2 Suspect 3 200 195 190 Ladder Crime Sce Suspect 1 Suspect 2 Suspect 3 240 185 420 == 230 180 410 220 175 400 170 165 - 390 450 440 430 160 370 290 TPOX D5S818 PentaD 380 Ladder Crime Sce Suspect 1 Suspect 2 Suspect 3

I. Enzymes are globular proteins II. Enzymes react with specific substrate. III. Enzymes are biodegradable substances. O All statements are correct O All statements are wrong O Statements I & II are correct. O Statements I & III are correct O Statemnets II & III are correct Dietary proteins yield amino acids and are deposited in the nitrogen pool. O True O False

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Antibodies in the human immune system can identify approximately 108 different molecules. Which one of the following is true?A. This diversity is generated from 108 different immunoglobin genes.B. Most of these antibodies recognize self-antigens.C. Most of these antibodies recognize proteins. D. Most of these antibodies recognize small organic molecules.E. There are really just a small number of antibodies, each of which can bind to many different antigens.The antibiotic penicillin is a small molecule that does not induce antibody formation. However, penicillin binds to serum proteins and forms a complex that in some people induces antibody formation resulting in an allergic reaction. Penicillin is thereforeA. an antigenB. a haptenC. an immunogenD. both an antigen and a hapten

Help blic Health Ch x 100% 47 HSC 258 - Major Projec X MindTap - Cengage Lea x C The Illustration To- 55750828934189288909969212&elSBN=9781305657571&id%3D1061392007&nbld%321... Q Search References Use the References to access important values if needed for this question. For the following reaction, 65.6 grams of barium hydroxide are allowed to react with 40.9 grams of sulfuric acid. barium hydroxide (aq) + sulfuric acid (aq) >barium sulfate (s) + water (1) What is the maximum amount of barium sulfate that can be formed? grams What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer

Archie was pouring a solution from a test tube into a beaker when his friend Guy surprised him from nowhere. Archie dropped the beaker and glass pieces were caught in his sandaled foot.Identify mitigating measure/sWhat should be the appropriate response to minimize harm

Which of the following is a general guiding principle behind modern biochemistry? Select one: O a. Monomers form dimers form polymers O b. Biological molecules only incorporate carbon, hydrogen and oxygen O c. Biological molecules always take straight-chain forms O d. Monosaccharides of all types move freely in and around all living cells e Carbon-based molecules are uniquely make-able by living things O e. Previous page Quiz navigation Time left 1:34:45 OL O O LO DELL

Identify the following antioxidant molecule.                  A. alpha tocopherol hydroquinone                                                                                       B.dehydroascorbic acid           CH3          CH3                                                   C. alpha tocopherol semi-quinone             \             /                                                           D. ascorbic acid                C  =  C                                                            E. alpha tocopherol quinone          /             \                                                                     : O – C               C  –  O      CH3            \\          //            \   /               C  –  C               C – CH2–CH2–CH2–CH–CH2–CH2–CH2–CH–CH2–CH2–CH2–CH–CH3             /             \            /                                   l                                l                                 l              CH3          CH2– CH2…

Which of the hypothetic equations below is incorrectly balanced:   a. 2 X + 3 Y2Z4  → 1 X2 (Z4)3 + 6 Y2   b. 2 D2F4G + 5 G2 → 4 DG2 + 4 F2G   c. 2 KLMN3  → 1 K2MN3 + 1 MN2 + 1 L2N   d. 1 J12B22C11 → 12 J + 11 B2C   e. 1 ABC4 → 1 AB + 2 C

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G neural crest tissue - Google Sear x A CHM 112 112-1 and 112-E1 A Presentation Session Student + 8 https://app.peardeck.com/student/twkkhzvar For quick access, place your favorites here on the favorites bar. Manage favorites now Peardeck Exercises Use #3. Nitol6) + 3 Fa(6)Z NF(1) + 3 HF(G) [1: 5,0 x10°n 0.10M Calculat K 2.0M 3.5 x 10°M Pear Deck Interactive Slide Students, draw anywhere on this slide! Do not remove this bar Slide 1/2