When an appropriate signal binds to a G protein-coupled receptor, what is the best description of how the information is passed across the plasma membrane?

Choice A., Binding of the signal molecule triggers the cell to produce G protein.
Choice B., The signal molecule is transported across the plasma membrane by the receptor protein.
Choice C., Signal binding causes a conformational change in the cytoplasmic portion of receptor protein.
Choice C., Signal binding causes a conformational change in the cytoplasmic portion of receptor

Signal binding causes a conformational change in the cytoplasmic portion of receptor protein

Explanation:

G-protein coupled receptors or GPCR are one of the most abundant and most common receptors present in the human body which sense a variety of stimulus from the environment.

These GPCR are located on the surface of the cell in the plasma membrane seven times and are thus called seven-transmembrane receptors.

The  GPCR is associated with a G protein complex and when a ligand or stimulus binds to the receptors they cause a conformational change towards the cytoplasmic side. This conformational change transfers the GDP to G protein and a cascade of the signal begins.

Thus, the selected option is correct.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.