Lab 2 Proteins and Starches

© Macmillan Learning X Chapter 11 HW-General, Organic, and Biological Chemistry for Health Scien Resources Solution Penalized Feedback Complete the structure of the monosaccharide present in DNA. The sugar should be in its ẞ-furanose form. HOCH₂ H Incorrect Answer DDD NOV 21 H H OH M 5 OH HOCH2 OH MacBook Pro Answer Bank H OH HOCH2 AO K ZOOM

Mass spectrometry X-ray diffraction Both techniques Answer Bank protein may be denatured small amounts of protein are sufficient can detect a covalent modification to a protein requires a large amount of protein analysis requires information about the protein-coding gene or genes protein sample must be pure protein must be conformationally stable Mass Spectrometry and x-ray diffraction are common biochemical techniques for characterizing proteins. Classify each statement based on whether it applies to MS, X-Ray, or both.

Correct options need same for all

Which factors will cause protein denaturation? Select all that apply. a. aqueous phosphate buffer b. organic solvents c. changes in temperature d. small metal ions - Na+, Ca2+, Cl- e. Tris a buffer commonly used with proteins f. heavy metals - Hg2+, Pb2+, Ag+

You're an undercover biological weapons agent who has been given an unknown liquid - you suspect that it is just sugar water (because you drank some by accident - you know you're not supposed to have food or drink in the lab, but you do it all the time, and it tasted sweet - plus you didn't die!) One of the tests you need to run is to see if it contains protein (remember, foreign proteins can cause severe immune responses which can be a powerful biological weapon). You set up 3 test tubes each with 10mL of the following: distilled water, gelatin solution and the unknown. The distilled water is clear, the gelatin solution is clear with a beige tint, and the unknown is clear. You use Biuret's Reagent - a dark blue dye which will turn a liquid sample purple in the presence of protein. 1. When Biuret's Reagen is added to the unknown, predict what color you expect it to become if the unknown is just sugar water: [a] (no change | blue | purple).   2.You included both a positive and negative…

Pre-Lab Questions 1. Define a protein, and describe one important function of proteins in the human body. 2. The following data were obtained from a Bradford assay to determine the protein content in a sample: Protein content (ug) Absorbance value 0 0.000 2 0.022 5 0.065 10 0.106 20 0.178 30 0.299 40 0.380 50 0.472 unknown 0.150 Use Excel, another program, or graph paper to produce a calibration curve based on the data. Use linear regression (or best fit line) to obtain the slope of the line. Determine the unknown protein content for a sample that shows an absorbance reading of b. С. 0.150.

Please correct the one outlined in red. The rest are correct.

QUESTION 19 Briefly explain why there are + and - charges in the amino acid structures in the table of common amino acids. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B IUS Paragraph Arial 10pt A v 面 田旺 田 QUESTION 20 Click Save and Submit to save and submit, Click Save All Answers to save all answers. MacBook Pro G Search or type URIL esc &

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This question has multiple parts. Work all the parts to get the most points. Complete the electron-dot structure of phenylalanine, showing all lone-pair electrons. • Include all valence lone pairs in your answer. Should you want to restart the exercise, the drop-down menu labeled == starting points can be used to redraw the starting molecule on the sketche . Do not draw the amino acid in zwitterion form. NH₂ [F ChemDoodle starting points Previous

Draw an a amino acid with a methyl (-CH3) side chain. Draw the molecule as it would appear at physiological pH. Click and drag to start drawing a structure. 0 :0 to 12

dow Help K O Macmillan Learning achieve.macmillanlearning.com 3 B X Chapter 10 HW - General, Organic, and Biological Chemistry Identify the general features of an amino acid. Chapter 10 HW + H H H H - Which part is responsible for the unique properties of each amino acid? ○ α-carbon atom ○ carboxyl group OR group ◇ amino group NOV 16 M amino group Answer Bank Resources ? a-carbon atom carboxyl group R group

Question 1 (3 points) Which of the following is a Lipid that is Nonsaponifiable? steroids fats O oils O triglycerides Question 2 (4 points) Which of the following are considered nonreducing sugars? lactose maltose sucrose 4 glucose Question 3 (3 points) MacBook Air 吕口 F3 F4 F5 F6

Highest Ką value Ka Lowest Ką value Ka Answer Bank CICH₂CH₂COOH CICH, COOH Cl₂ CHCOOH CH₂CH₂COOH 2

Biological Macromolecules Identifying and drawing peptide bonds Draw the structure of threonylmethionine, a dipeptide made from threonine and methionine, as it would appear at physiological pH. $ 4 Explanation % 5 Click and drag to start drawing a structure. Check 6 MacBook Pro & 7 * 00 8 ( 9 X O 0:0 3 0 è D ▬▬ Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | O + 11 Ⓡ 2/5 =

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you have a 11.5 mg sample of blood that contain various proteins. Hemoglobin is only protein containing Fe. Hemoglobin is 3.3% of compund C34H32FeN4O4. 11.5 mg blood sample contains 34.7 micrograms of Fe. What is mass % of hemoglobin in protein sample?

When patients are found to have increases or decreases in their total protein & albumin values, this test might be run next to narrow down the disease diagnosis:   Question 19 options:   serum protein electrophoresis   A/G ratio   glucose   cholesterol

For choices see another pic please accurate solve

Please don't provide handwriting solution

1. Define coeffienct? 2. What is the valus of a subscript after a compound if one is not visible? 3. What is the difference between a compound and a molecule? 4. Solve: 2 BaCl2 + 2 Na2 (SO4) 2 -----> 4 NaCl + BaSO4

what is a reason why company leaders would add melamine to their product to make the protein content appear higher than the actual amount of the product?  Describe two possible reasons for why food safety inspectors often use an overall nitrogen content test, instead of Bradford assay, to determine the protein content in a product.

Combine these amino acids into a tripeptide. Add or remove atoms and bonds as needed. Select Draw Rings More Erase / // III 0 H Atom Decorati || H H H H H C H 1 1 XXXF О-Н N H N C H H H CH₂ H₂C H CH₂ H₂C CH₂ 4 → 0

Answer the guide questions

731375SSO Which of the following substances meets the definition of a pure "compound" according to the chemistry textbook? Place a check next to all choices that apply. O Distilled water: H20 O Pure copper metal: Cu O Dinitrogen Trioxide vapor: N203 OAmmonium Chloride: NH4CI O Himalayan Sea Salt: Mixture of NaCI, Fe203, and other trace minerals. O Compound W: (Read ingredients) Drug Facts Compound W FAST ACTING GEL PETt STAS

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Chrome File Edit View History Bookmarks Profiles Tab - с < + Aktiv Chemistry app.101edu.co X + FEQ Question 16 of 20 Provide the correct three-letter abbreviation for the following amino acid: || H₂N-CH-C-OH | CH₂ I CH₂ I C=O I NH₂ Window Help Ala Arg 6 Asn Asp Cys Glu Gln Gly His lle Leu Lys ★ ✰ W MacBook Air