Answer:
The E.coli bacteria utilize glucose and lactose as a substrate to produce various metabolites used to survive.
The bacteria use lac operon which represents a sequence of various genes aligned in a manner to use lactose as a substrate as the most favoured substrate is glucose.
The glucose metabolites regulate the transcription of the lactose operon as the presence of glucose prevent the production of cAMP which shuts off the lac operon even in the presence of the lactose.
When the glucose level is low in medium, the level of cAMP increase which binds with CAP and then activates the lac operon whereas when the glucose level is high, then the low level of cAMP does not activate the lac operon.
Option A
Target organs regulate the pituitary through feedback loops. Most often, this takes the form of negative feedback inhibition.
<u>Explanation:</u>
Feedback inhibition is a cellular regulatory mechanism in which an enzyme’s action is frustrated by the enzyme’s terminal product. This method enables cells to control how much of an enzyme’s terminal product is created. An outstanding case of a negative feedback loop is detected in the regulator of thyroid hormone secretion.
To manage the discharge of chemical signals in the hypothalamus, pituitary glands Negative Feedback utilized widely. Negative feedback transpires when a product supplies back to reduce its creation. When the output of a way that constitutes restrains inputs to that way is recognized as Negative feedback
<span>elongation ^^ *hugs*</span>
This is a scientific model because weather is testable and observable, we can see weather patterns using satellites, and well, its testable.