Answer:
c. Pyridostigmine binds to the acetylcholinesterase active site and prevents sarin from binding to and modifying the enzyme active site.
Explanation:
Sarin is a toxic compound which inhibits acetylcholinesterase enzyme. This enzyme degrades the neurotransmitter acetylcholine after the required muscle cell stimulation. In absence of its activity, acetylcholine is not degraded and the muscle cells are stimulated uncontrollably. The muscles are not able to relax which ultimately proves fatal for the victim.
Pyridostigmine is also an acetylcholinesterase inhibitor like Sarin. However its period of inhibition is short compared to organophosphorus inhibitors like sarin. It competes with sarin and replaces it in the active site of acetylcholinesterase. The enzyme is still inhibited but for a shorter time as compared to inhibition by Sarin. Hence after sometime, it becomes functional again and resumes its normal activity. Acetycholine starts getting degraded relaxing the muscles.
The smallest particle of any type of matter would be an Atom
The statement would be considered to be B. False, because genetic drift occurs when different genotypes in smaller populations have a chance of disappearance. This is due to the species either dying off or not reproducing with others, so the genotype doesn't spread to offspring, because the species didn't have offspring.
Answer:
Open-mindedness. Capable of accepting new and different ideas.
Skepticism. Having an attitude of doubt.
Honesty. Scientists report results truthfully.
curiosity. leads to new scientific knowledge.
creativity. involves coming up with new sources and ways to solve problems or produce things.
Answer:
loss, respiratory frequencies, heart rates and body temperatures of both bats flying at heat as successfully as flying birds at high 6 flew steadily in what appeared to be a normal.
Explanation:
