A study of gay men in the US has found fresh evidence that male sexual orientation is influenced by genes. Scientists tested the DNA of 400 gay men and found that genes on at least two chromosomes affected whether a man was gay or straight. A region of the X chromosome called Xq28 had some impact on men's sexual behavior - th
In preparation for a protein purification experiment, you have been asked to prepare 100 mL of an aqueous solution of Tween20. The solution should have a final concentration of 4.25% (v/v) Tween 20. There is a bottle of Tween 20 (100% v/v) on the lab shelf. Describe the method that you will use to prepare the solution.
1. Write a structural formula for each of the following compounds: a. N,N-diethylaminocyclopentane b. ethylpropylamine c. tetramethylammonium hydroxide d. 1,3-diaminobutane 2. Write a correct name for each of the following compounds: 3. Draw the structures for and name and classify as primary, secondary, or tertiary all
Classify six kinds of amino acids according to the functions that they serve in the human body, stating an example for each class.
Please see the attachment for the questions.
I have done some research on this question, but just need some help please. I just copied and pasted some of my research but you can use some of it or delete all of it. I will do a lot of research and write something up, but I just want to know if I am on the right path, especially for the question regarding the chemical formula
1. Serine exists in its zwitterion form at a pH of 5.7. Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary. 2. Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/ma
Can you please help with the following review 1. Which of the following amino acids are chiral? a) CH3CH(NH2)COOH b) CH2(NH2)COOH c) CH2(OH)CN(NH2)COOH 2.Identify the functional groups in each of the following molecules: a) CH3CH2COCH2CH2CH3 b) CH3COOC2H5 c) CH3CH2OCH2CH2CH2CH3 3. How many liters of ai
1. Classify six kinds of amino acids according to the functions that they serve in the human body, stating an example for each class. 2. A middle-aged man has been diagnosed as being at high-risk of developing Coronary Artery Disease. - State the chemical composition of the sterol that is present in high levels in most peo
Please see the attached file for the fully formatted problems. 1) Which of these amino acids have polar side chains? 2) Which of these amino acids have side chains that cannot form hydrogen bonds (i.e.,do not have H-bond donors or acceptors)? 3)Which of the amino acids shown have a side chain that can form a salt
1.Calculate log(42). Express your answer numerically. 2. if log(x) = -0.123, what does x equal? Using Dissociation Constants Proteins are complex biological molecules made of smaller molecules called amino acids. Five common amino acids and their Ka values are listed below. Rank them from strongest to weakest acid. Ac
Please see the attached file for the fully formatted problem(s). 1. Percent Concentration as a Conversion Factor How many grams (m) of glucose are in 265 mL of a 5.50% (m/v) glucose solution? Express your answer numerically in grams. Part C You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contain
Leucine is an essential amino acid with the systematic name 2-amino-3-methylpentanoic acid. It has pKa1=2.36 and pKa2=9.60 1. Draw the condensed structure for leucine, and label all chirality centers with an asterisk. 2. Draw a Fischer projection of L-leucine and label the chirality center(s) as R or S. 3. What is the
Find the nutritional values/info in food from USDA Nutrient Data Laboratory? Select a food. Use the USDA website to analyze the nutritional components and composition in terms of carbohydrates, lipids, and proteins (including molecular structure). Assess calories, vitamins and minerals. Is this food recommended?
This exercise will allow you to see the relevance of organic chemistry in the world around you. You will identify organic compounds in household items and drugs. Locate two or more products in your home that contain organic molecules. From these products, make a list of 10 organic compounds present in the products. In
1. What is the difference between an amino acid and a protein? How does this difference in structure affect biological function? 2. Give an example of a hydrophobic group and a hydrophilic group.
I am given an amino acid which consists of the elements carbon, hydrogen, nitrogen, and oxygen. When a 426 mg sample of the amino acid is burned, 631 mg of carbon dioxide and 301 mg of water are formed. In a separate observation, the same amount of sample of amino acid is boiled in excess sulfuric acid, then neutralized
1. Assume that the triglyceride you are starting with is composed of the following three fatty acids: myristic acid, palmitic acid, and oleic acid. Draw the structure of the starting triglyceride. 2. Using the triglyceride drawn in #3, show the products that result following saponification using NaOH. 3. Describe how soap
Hello, I did an experiment in which I added 500 mg of cholesterol to 1.5 mL of dry pyridine. Then I added 1.7 mmol of benzoyl chloride and heated the mixture. Questions: 1. Explain two reasons why pyridine was used in this experiment. 2. Do spherical molecules exhibit liquid crystalline behavior? 3. Could either a primar
Which of the following describes the compound below? CH3(CH)7CH=CH(CH2)7COOH a. triglyceride b. micelle c. unsaturated fatty acid d. saturated fatty acid Question 2 Saponification will result in what products? a. 3 fatty acids + glycerol b. sodium salts of 3 fatty acids + glycerol c. chole
See attachments for full descriptions of the problems 37. The most basic amino acid is ________ 38. The most acidic amino acid is ________ 39. The reaction below (see attached) is an example of: a. nucleophilic addition b. electrophilic addition c. nucleophilic acyl substitution d. electrophilic substitution Us
In this modification of Knoevenagel condensation, malonic acid (not the ester) is reacted with an aldehyde to yield an alpha beta conjugated carboxylic acid. Pyridine is used as a solvent and catalyst, while beta-alanine (or some other amino acid) is used as a co-catalyst. 1. Can you please explain the use of beta-alanine? I
Structural formula of a protein that contains 4 building block units, showing where the peptide bonds are in the structure.
Examine the label submitted in the attached file . Identify the oil or fat and report the level of saturated, monounsaturated, and polyunsaturated fats that are listed on the label. Try to rank them from most saturated to most unsaturated. Check if the label mentions anything about trans fats.
Indicate the number of possible stereoisomers for a linear aldopentose? a.4 b.8 c.12 d.16 What statement in incorrect about the following pairs of sugars? a. Galactose and mannose are diastereomers b. L-galactose and D-galactose are enantiomers c. Glyceraldehyde and dihydroxyactone are stereisomers d. Gulcose
For lipitor, bile salt, and cholesterol and with knowledge of intermolecular forces, explain the following: a. Which of the three will dissolve in blood and why? b. LDL (bad cholsterol) stands for Low Density Lipoprotein - that is- chlosterol (lipid) surrounded by protein. HDL (good cholosterol) stands for High Density Lip
Please label the questions with the appropriate numbers to avoid confusion. 10. The figure below shows a somewhat condensed structural formula for acetaminophen, the active ingredient in Tylenol. CH3 CONH --- (a pentagon) ---- OH a. Write the complex structural formula for acetaminophen, showing all atoms and all bonds
Please see the attached file for full problem description. 18. Identify the functional groups in morphine and Demerol. Can these molecules be assigned to a particular class of compound? Why or why not? 21. Why of these compounds can exist in chiral forms? OH I a. H C