Question

Peptides and Proteins 5. Abbreviations for this tripeptide 3-letter abbreviation 1-letter abbreviation B. Denaturation of Proteins Treatment Observations 1. Heat 29 Reason for Changes 2. Acid Cloudy 3. Base clear 4. Alcohol partially cloudy milky - Filter 5. Heavy metal ions -.281 Questions and Problems 01 Why are heat and alcohol used to disinfect medical equipment? Heat and alcohol (and strong Base Acus) Denature the proteins Pathogen (bateria, viruses, protozoa + fungus.) Silver ion also dengtures proteins pathogens, thus killing infections agents. Q2 Why is milk given to someone who accidentally ingests a heavy metal ion such as silver or mercury? De do

Answer 1

The solutions that turned cloudy are solutions where the proteins were denaturalized. When denaturalization occurs, the solubility of the proteins decreases drastically, which leads to precipitation of the proteins, which results in an increase in the turbidity of the sample, making it look cloudy. In the case where no cloudy appearance was detected, the protein was probably still in its natural state after the addition of the base.

Regarding the use of milk for intoxication with some heavy metals, milk can tie up the ions in the stomach, partially avoiding the absorption of the heavy metals in your organism until you can vomit it up. The heavy metal ions can denaturate the proteins in your body, causing severe damage. When milk is added to the equation, part of the heavy metal ions are "consumed" in the denaturalization of the milk proteins, which lowers the amount that can act on your body proteins.