Answer:
B. Sodium ions directly enter the cells, indicating the signal is transduced by an ion channel.
D. Sweet utilizes the GPCR signaling pathway, activating phospholipase C.
Explanation:
The taste received by the taste buds is processed through different channels
a) The Sweet, bitter, and umami tastes are transduced by the GPCR (G-protein-coupled receptors) signaling pathway
b) Sour taste reaches the taste bud through the acidification of acid-sensitive membrane proteins with in the taste cell
c) The epithelial sodium channels in the renal tissues directly takes up the salty taste
Hence, option B and D are correct
It would a nitrogen as it makes up for 78 percent of earth air
And igneous rock sample is about 250,000 years old. Would you use uranium-lead radiometric dating to find its age?Answer:
Explanation:
A nonpolar zone is formed in the interior portion of a cellmembrane. This zone has the ability to prevent large molecules andions from entering through the membrane.