Answer:
e. PhoU keeps PhoR bound to the phosphate transporter protein Pst
Explanation:
PhoU is a membrane protein known to regulate the transport of phosphate (Pi) between cellular compartments. It has been discovered that mutations in this protein cause lethality because the cell becomes incapable of controlling the intracellular levels of Pi, this being toxic for the cell. PhoR is a histidine kinase/phosphatase. When the Pi level is considered to be a limiting factor, PhoR autophosphorylates at a histidine residue and then donates its phosphoryl group to PhoB. On the other hand, when the Pi level is high, this protein removes the phosphoryl group from phospho-PhoB. Finally, the Pst is a signal transduction protein that acts as a transporter capable of switching its conformation during the transport of PI.
Answer:
Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.
Explanation:
Astronomy can best be described as a "<span>a. study of objects beyond earths atmosphere", although the subject of astronomy can be much more complicated. </span>
True
- Tubuloglomerular Feedback (TGF) is a type of internal feedback system in kidney physiology.
- The glomerulus in each nephron receives information from the renal tubules, which are located downstream in the tubular fluid (an upstream area).
- One of the processes the kidney utilizes to control glomerular filtration rate is tubuloglomerular feedback (GFR).
- An elevated distal tubular sodium chloride concentration results in a basolateral release of adenosine from the macula packed cells, and this process is known as purinergic signaling.
- This starts a chain of events that eventually raises the GFR to the proper level.
<h3>What is tubuloglomerular feedback mechanism?</h3>
A feedback system found inside the kidneys is called tubuloglomerular feedback in the study of renal physiology. The glomerulus in each nephron receives information from the renal tubules.
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Algae are plant like because they contain chloroplasts and produce food through photosynthesis. Protozoa are animal like because they are heterotrophs, and are capable of moving.
