Chapter 1, Problem 8P

A chemist, during the course of an analysis, runs across a chemical composed of carbon, hydrogen, and oxygen in the proportion 1:2:1 and having a six-sided molecular shape. It is probably (a) a pentose, (b) an amino acid, (c) a fatty acid, (d) a monosaccharide, (e) a nucleic acid.

Discuss the role of the following in the liquid-liquid extraction of dyes. A. Vinegar B. Baking soda

Two-dimensional gel electrophoresis of proteins in a cell extract provides a qualitative way to compare proteins with respect to intracellular abundance. Describe a quantitative approach to determine the number of molecules of an enzyme per cell.

Give the functions of the following ingredients, then name a branded/commercial skin or hair care product where the said material is used.  Ozokerite Wax Sodium Ascorbate Lactic Acid 90% Titanium Dioxide Magnesium Aluminum Silicate  Mineral Oil 50 SUS Tween 80 Zinc Oxide Retinol DMDM HYDANTOIN

Enlist 5 uses of talc in pharmacy.

Briefly explain about  degradation of azo dyes in wastewater using micro-nano bubbles (MNBs) treatment. Explain how the process is done.

You are testing the efficacy of different treatments on eliminating SARS-Cov-2 from surfaces. Which treatment is the least effective?       A) Soap and water         B) Zephiran 1:1000           C) Tincture of Zephiran                      D) 1% iodine in 70% ethanol

(a) Discuss the role of carbonic anhydrase in CO2 transport. (b) Discuss the cause of ‘cold denaturation’ of proteins.

Consider the following data that was collected for a protein that contain 0.76 % tryptophan amino acids by weight (Molecular weight of tryptophan amino acids is 204 g/mol). Absorbance Concentration (mg/L) 0.0250 0.100 0.150 0.226 0.259 0.400 0.600 0.964 1.14 1.78 1.45 2.35 1.78 2.87 How many mg of the protein present in 1.00 L solution that shows an absorbance of 1.20?