Answer:
Brassinosteroids are synthesized from phytosterols and they promote plant growth and development by modulating cellular processes (e.g, cell division, elongation, photomorphogenesis, responses to environmental stimuli, etc).
Explanation:
Brassinosteroids are phytohormones similar to steroid hormones. Phytosterols include sitosterol, campesterol, and stigmasterol, i.e., lipid (cholesterol) molecules that form the cell membranes. These polyhydroxylated steroidal phytohormones play a wide range of cellular roles during plant growth, development and immunity. Examples of brassinosteroid functions include plant development, xylem differentiation, responses to biotic/abiotic stresses, reproduction, etc. For example, campesterol, which is a precursor of brassinosteroid hormones, is an integral membrane component that functions during plant embryogenesis by regulating the permeability of cell membranes and by altering membrane-associated proteins, as well as signal transduction pathways.
I think we need more info to help you out do you have any choices?
B. i think an extended period of rain.
<span>when the breaking down of acetylcholine is not performed, then symptoms similar to those of poisoning with acetylcholinesterase inhibitors would occur. This would be highly hazardous to the human system as severe poisoning as we all know is very lethal. Even a fetus would not develop with this.</span>
Answer:
<em><u>Permeability</u></em>
Explanation:
<em>Voltage-activated channels are channels for which a change in the voltage across the membrane alters their PERMEABILITY. </em>
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