What property makes phosphatidylcholine a good emulsifying agent whereas triglycerides are not? Boiling point Degree of saturation Melting point Polarity
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- Using G-25 Sephadex beads (Fractionation range 1000-5000) KD, a sample of Vitamin B12 (MW ~1500 KD) will be: Fully excluded Partially included Fully included the activity of lysozyme was determined by looking at the increase in light scattering per unit time increase in absorbance per unit time. decrease in absorbance per unit time. increase in concentration per unit time.What is the major biochemical function of each of the following proteins? α-Keratin _____________________________________ Collagen _____________________________________ Hemoglobin _____________________________________ Myoglobin _____________________________________Many heavy metals are used in antiseptics. Explain the oligodynamic effect and provide a clinical example of the use of heavy metals.
- name of steroid name of solvent color reaction principle involved/ reaction mechanism Androsterone sulfuric acid progesterone sulfuric acid methyl testosterone sulfuric acid prednisone sulfuric acid Above are the list of steroidal compounds and the solvent used to test their color reactions. Determine the color reactions and the principle involved or color reaction mechanism of each steroid.What could be the reason why hydroxylation of proline residues is critical to the structural integrity of collagen? Select the correct response The hydroxyl moities in Pro form disulfide bonds which stabilize collagen structure. The hydroxyl moities in Pro form ionic bonds (salt bridges) which stabilize collagen structure. The hydroxyl moities in Pro form hydrophobic interactions which stabilize collagen structure. The hydroxyl moities in Pro form peptide bonds which stabilize collagen structure. The hydroxyl moities in Pro form H-bonds which stabilize collagen structure.Predicted observation of the precipitation of albumin with: Strong mineral acids - nitric acid - sulfuric acid Heavy Metal -ferric chloride
- During the biosynthesis of acetylcholine, the cytosolic_____ important step. acetate transferase choline acetyltransferase serine decarboxylase citrate isomerase completes the lastThe reults for the macroscopic part: 0.30M glycerin – solution was translucent (could see text behind the test tube) 0.15M NaCl – solution was opaque (could not see text behind the test tube) 0.30M NaCl – solution was opaque (could not see text behind the test tube) 0.15M glucose – solution was translucent (could see text behind the test tube) 0.30M glucose – solution was opaque (could not see text behind the test tube) 0.30M Urea – solution was translucent (could see text behind the test tube) Results for microscopic part: 0.30M glycerin – no cells present 0.15M NaCl – normal sized cells 0.30M NaCl – crenated (shrunken and star-shaped) cells 0.15M glucose – no cells present 0.30M glucose – normal sized cells 0.30M Urea – no cells present Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity…Only do the following- synthesize a monoglyceride and diglycerides and attach them below. Make sure to identify which is which!
