The answer is true that they have equal mases.
It is true that the major ways people are exposed to toxins are by ingesting them, inhaling them, injecting them, or absorbing them through the skin.
<u>Explanation:</u>
Toxins can enter in four various ways into our body often referred as "route of exposure". It is one among many factors affecting toxicity.
Inhalation: When the toxin is a gas, it is usually absorbed into the body by inhalation. Inhalation of toxins may cause respiratory and lung damage. Eg: cigarette smoke
Absorption: If a toxin enters the human eye or skin, it can be absorbed into the bloodstream. This is called absorption. The skin can prevent some toxins from entering the body. For example: work stations (gas stations) where people work with toxins
Ingestion means that the person has ingested the toxin. Some chemicals cannot get into blood from digestive tract. For example: drinking contaminated water.
The injected toxin enters the body when the person carrying the toxin breaks the skin. Injections can end in veins, muscles or just under the skin. Eg: Botulinum (used to get rid of wrinkles)
In bio-chemistry, poison, a natural or synthetic substance that damages living tissue and has a harmful or lethal effect on the body, regardless of whether it is absorbed, inhaled or injected through the skin.
Your answer would be 176.109.
Answer:
12.5 µg
Explanation:
We are given the absorbance from the calibration curve:
A = 0.0182 x + 0.007
A = 0.234 ( It is already corrected, do not need the blank value )
so we can solve for x, the quantity of protein
x = ( 0.234 -0.007 )µg / 0.0182 = 12.5 µg
Note we are given the value for a blank solution but we do not need it for the absorbance of our sample since it is already corrected as stated in the question. If it were not a corrected absorbance ,we will need to correct the absorbance value. The absorbance of the blank is caused by some absorption from the solvent, cuvette, internal reflection, etc.
