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

Describing peptides with 3-letter codes Answer the questions in the table below about this molecule: || H3N -CH-C-NH-CH – COOT CH3 CH2 o= NH2 amino acid O monosaccharide What kind of molecule is this? O lipid peptide none of the above If you said the molecule is a peptide, write a description of it using 3-letter codes separated by dashes. Explanation Check

is the following correct if not which is the correct answer?

Chemistry Hi, just wondering how to calculate the glucose amount? thank you

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.

A protein has a chain of 200 amino acids. This is the protein's ________ structure a. primary b. secondary c. tertiary d. quaternary   The secondary structure of proteins results primarily from which of the following interactions? a. formation of disulfide linkages b. formation of hydrogen bonds c. formation of salt bridges d. more than one response is correct e. no correct response   Protein denaturation results in a disruption of the a. primary structure b. secondary and tertiary structure c. primary and secondary structure d. primary, secondary and tertiary structure e. no correct response is given   H2 + CH2 = CH2 --> CH3CH3Which of the following could be a substrate for an enzyme that has an induced-fit active site and catalyzes the reaction above? a. CH3_OH b. CH2=CH_CH3 c. CH3_O_CH2CH3 d. none of the above   Enzyme activity is best determined by performing a(n) a. enzyme international unit b. enzyme efficiency test c. enzyme specificity test d. enzyme assay

1 pts Question 17 Draw the enantiomer for the following monosaccharide. Upload your answer in the last question. ҫно HOH ČH,OH Edit View Insert Format Tools Table 12pt v Paragraph v B Italic O words Question 18 1 pts MacBook Pro G Search or type URL +, #3 2$ & ( ) 3 4 7 8.

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…

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

Question: Why are we using this materials in the experiment is there any reason why we using it? Quantification of Total Protein in Serum Experiment; Materials: Fatty acid free beef albuminl solution: 100 g / L Reagent Ⅰ Sodium potassium tartrate 9g / LSodium hydroxide 0.2 mol / L         Potassium iodide 5 g / L Reagent Ⅱ Serum from blood   Copper sulphate solution: 150 g / L   Working solution: 5 ml of reagent copper sulphate solution is prepared by mixing into 1 L of reagent Ⅱ. This reagent is stable for 6 months at 2-8 ° C Procedure: *Three test tubes are taken. These are marked as blank, standard and sample tubes.*Only 5 ml of working solution is put into the blank tube.*0.1 ml reagent I and 5 ml working solution are put into the standard tube.*0.1 ml of serum and 5 ml of working solution are put into the sample tube.*After mixing each tube separately, it is waited for 30 minutes at room temperature and measured at 545 nm in the spectrophotometer.*Color permanence is…

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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Neonatal bilirubin samples are especially vulnerable to UV light degradation due to their small sample volume.   Question 9 options:   True   False

What is the analysis and conclusion? in the picture.

Chemistry I need help understanding these questions more. Incorrect Question 11 A protein with polar sidechains on the outside of the main area and non-polar sidechains on the outside of a short tail is likely located where? Free floating in the blood Fully encased in the cell wall Anchored to the cell wall and mostly outside the wall Anchored to the cell wall and mostly inside the wall Question 9 Which description(s) below could belong to a steroid? multicyclic molecule often acts as a signal in the body used as an energy source Diverse function beyond societal stereotypes Question 8 Which molecule(s) contain lots of nitrogens in rings? Amylose DNA Proteins RNA Lipids Partial tial

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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

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

How do you answer 1, 2, and 3? (This is a practice exercise).

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

Please not handwritten.

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

Not handwritten.

Please write 5-10 sentences per number. 1. What is the significance and relationship of proteins topic in medical science students? 2. Why proteins topic is very important topic to study for the medical students? 3. How can proteins topic help our future?

How would one calculate the protein concentration for each sample if the original protein concentration is 2mg/mL. ?

Given an amino acid sequence, you perform a FASTA search and find one match with an E value of le What does the low E value tell you about the the homology between the matched (target) sequence and the query sequence? The two sequences are not homologs. Both sequences are from the same organism. An E value of this size does not prove or disprove homology. The two sequences are homologs.

Question 31 Use the following chromatogram of standard amino acids: 5 24 11 4 16 19 3 12 15 23 6 8 9 14 13 14 17 18 20 22 1. 2 6 8 10 12 14 16 18 20 22 24 26 Time (min) Which of the following choices describe structurally similar compounds in the chromatogram? O Peak 11 and 24 O Peak 14 and 22 O Peak 12 and 21 O Peak 4 and 5 21 2. 2. [nu)

23 HO, HO 1) NaNa 2) LIAIH4 3) CH3-I (xs) 4) Ag20 1) Brz 2) FeBra Ts Cor NH2 CH2CH2CN