Too Much of a Good Thing. The vitamin A content in beef liver is very high, with 100 grams of raw liver containing over three times the recommended daily value. As a fat-soluble vitamin, vitamin A accumulates in your own liver and can cause serious health issues at high levels.
Acetylcholine is released when a nerve impulse reaches a myoneural junction. It diffuses across the synaptic cleft and binds to cholinergic receptors on the muscle fibers, causing them to contract. cholinesterase splits acetylcholine into its components, thus stopping stimulation of the muscle fibers.
Best Answer: Many nerves in the human body secrete acetylcholine at their nerve endings. The acetylcholine diffuses accross a gap called a synapse and stimulates the next nerve or a muscle. This action of acetylcholine has to be brief in order for the brain to be able to change it orders to the rest of the body. Therefore acetylcholinesterase causes water to be added to the acetylcholine molecule to break it down into choline and acetic acid.