These <span>large leaves of ferns that show multiple venation are called fronds.</span>
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.
Amino acids are the building blocks that make up proteins.
Answer:
In the bloodstream
Explanation:
The metabolic breakdown of amino acids creates ammonia, which is especially toxic to the brain. The liver converts ammonia to urea, and it is then released into the bloodstream, where it travels to the kidneys and is excreted in the urine.
Answer:
<u><em>Complementary base pairing is important in DNA as it allows the base pairs to be arranged in the most energetically favourable way</em></u>
<u><em>It is essential in forming the helical structure of DNA. It is also important in replication as it allows semiconservative replication</em></u>
<u><em>A complementary base is either of the two nitrogen-containing sections of a nucleotide that bond together to connect strands of DNA or RNA</em></u>
<u><em>DNA and RNA are complex molecules that are central to genetics and both are made of things called nucleotides.</em></u>
Explanation:
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