Exam 4 At the end of June, 2017, the UN confirmed the use of sarin, a toxic nerv

Question

Exam 4 At the end of June, 2017, the UN confirmed the use of sarin, a toxic nerve agent, by Syrian on Syrian civilians in early April. Eighty-seven people, including children, were killed at tha 1 to 10 minutes following exposure. Sarin belongs to a class of compounds known as acetylcholinesterase inhibitors 13) What is acetylcholinesterase? A) It is a lipid. B) It is a carbohydrate. C) It is an enzyme. D) It is a gene. 14) What is the specific effect sarin causes? A) It slows ACh degradation. B) It speeds up ACh degradation. C) It promotes reuptake of ACh. 15) As a result of sarin's effects, what happens at the synapse? A) The concentration of ACh decreases in the synapse. B) The concentration of ACh increases in the synapse. C) It causes more calcium ions to enter at the axonal tip, speeding up ACh release. When someone is exposed to a lethal dose of sarin, what is a cause of death? 16) A) They can draw air into their lungs, but cannot exhale properly, leading to suffocation. B) They can exhale air from their lungs, but cannot inhale properly, leading to suffocation. C) They breathe so rapidly, oxygen cannot be absorbed into the RBCs. 17) Upon autopsy, what would be the measured pH of the blood? A) Normal pH. B) Alkolotic pH. C) Acidotic pH.

Explanation / Answer

Ans 13:- (C) :- Enzyme.

Explaination:- Acetylcholinesterase, also known as AChE, is an enzyme.This enzyme's sole responsibility is to break down the neurotransmitter acetylcholine.

Ans 14:- (A):- It slows down ACh degradation.

Explaination:-. Sarin is an extremely potent acetylcholinesterase (AchE) inhibitor with high specificity and affinity for the enzyme.

Ans 15:- (B):- The concentration of ACh increases in the synapse.

Explaination:- Acetylcholine concentration builds up as acetylcholine builds up in our bodies, we become extremely uncomfortable and die.

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