Answer:
Muscle contraction function.
Explanation:
The nerve endings possess synaptic acetylcholine vesicles ready to be released. The action potential depolarizes the presynaptic terminal and increases the concentration of axoplasmic calcium; Acetylcholine molecules are thus released, so that the concentration of the neurotransmitter at postsynaptic (nicotinic) receptors is temporarily increased. This is followed by post-synaptic membrane depolarization, muscle membrane action potential with increased rnioplasmic calcium concentration, and finally muscle contraction. Acetylcholine is hydrolyzed by acetylcholinesterase and resynaptic at the presynaptic level by cholinecetyltransferase. The etiopathogenesis of myasthenia gravis is autoimmune and there are antibodies against acetylcholine receptors that circulate in the blood, as well as a decrease in the number of receptors on the motor plates, that is, it is produced by the postsynaptic blockage of the myoneural plaque, that generates fatigue and localized or generalized muscle weakness that is characterized by the worsening of the contractile force of the muscle.
I believe the answer is "biodegradable". Hope this helps!
Answer: C. Control Question
Hi!
I believe A. Estuary is not an example of a wetland.
Answer:
A promoter and a start codon are similar in that both are sequences of Nucleic acid that are required to start important processes, and both determine the sites where the process will begin. The key differences are that the promoter is needed to start transcription and the start codon is needed to start translation. Also, the promoter is a DNA sequence only, and the start codon is a sequence found within a(n) mRNA .
Explanation:
The promoter is the sequence of DNA that serves as a binding site for RNA polymerase. The RNA polymerase is the enzyme of transcription. Promoters are required to start the process of transcription. Transcription is the process of making RNA copies of the DNA template strand.
The start codon is the first codon in mRNA that is translated during protein synthesis. The start codon marks the start of the protein-coding region of the mRNA. Binding of aminoacyl tRNA with complementary anticodon to the mRNA start codon begins the process of translation.
