Answer:
The lactose present prevents the production of lactase
Explanation:
This question is describing a set of genes in bacteria called LAC OPERON. Lac operon controls the production of lactase, which is the enzyme that digests lactose. However, this gene can be regulated at the transcription level i.e caused to be transcribed or not depending on certain factors.
According to the question, lac operon, which regulates the production of enzymes will be transcribed and subsequently translated i.e. turned on when there is a substrate (lactose) that the produced enzyme will work on. However, when there is no need of the lactase enzyme or there is absence of lactose (substrate), the lac operon gene is turned off.
Note that, the statement that "The presence of lactose prevents the production of lactase" is not correct.
Rapid water movement between the extracellular fluid and the intracellular fluid is termed as Fluid Shift
<h3>How does the fluid shift works and affect the body?</h3>
When bodily fluids transfer across the fluid compartments, fluid shifts happen. Hydrostatic pressure gradients and osmotic pressure gradients work together physiologically to cause this. Water will passively travel from one area to the next through a semipermeable barrier until the hydrostatic and osmotic pressure gradients are equal. Fluid changes can result from a variety of medical problems. Critical organs like the brain, heart, and kidneys are put at risk when fluid shifts out of the blood vessels (the intravascular compartment), the cells (the intracellular compartment), the interstitial space, the cells (the intracellular compartment), the intracellular space, the cells (the intracellular compartment), and the brain cells (the intracellular compartment). When fluid shifts into the brain cells, it can cause a stroke.
To know more about the fluid shift, Please visit:
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DNA is found in the nucleus
Elastic and gravitational
hope this helps!:))
