Fibrous roots grow from the main stem of the plant, unlike the taproot.
Plants with a taproot system are usually deep rooted and have a primary root while fibrous roots are much shorter, and are densely packed fine roots.
The s orbital can hold up to two electrons while the p orbital can hold up to six electrons.
An atoms satisfying the octet rule means that this atom has eight electrons in its outermost energy level (which is the maximum number of electrons that can be found in a single level and makes the atom stable).
For this to happen, two electrons must occupy the s orbital and 6 electrons must occupy the p orbital. This makes a total of eight electrons.
Therefore, the right choice is:
<span>d) both full s orbital and full p orbital</span>
Kytos actually means cell
Increasing the stimulation up to the maximal stimulus
Answer:
A. Botulinum toxin possesses a heavy chain and a light chain, each of which takes part in the toxicity. The binding of the protein and its invasion within a nerve cell is permitted by the heavy chain. After the entry is permitted, the light chain functions like a protease and chops proteins, which would usually permit neurotransmitters to discharge out from the cell. This is basically a commotion of exocytosis or the discharging of neurotransmitters.
The acetylcholine, that is, the obstructed neurotransmitter generally conducts a nerve impulse to a muscle, allowing the muscle to contract. By inhibiting the neurotransmitter, the botulinum toxin results in its distinctive flaccid paralysis.
B. The small doses of the sterile, purified botulinum toxin when used in a medical setting as an injectable form prevent the release of a chemical known as acetylcholine by the nerve cells, which signal contraction of the muscles. By selectively interfering with the underlying tendency of the muscles to contract, the prevailing frown lines are smoothed out, and in the majority of the cases are almost invisible for a week.
