Answer:
(b)-osmosis
Explanation:
Osmosis -
In terms of biology , it is a form of diffusion , which is linked to the cells of the body .
The process of diffusion when the molecules and the atoms move from the region of high concentration to a region of lower concentration .
This is done in the presence of a semi - permeable membrane , which allows only a certain substance or molecules to pass via it .
hence , the correct term for the given statement is (b) - osmosis .
Answer:
It’s been more than two decades since Britain’s retail electricity market was opened to full competition in 1999. Before that, retail supply was provided by state-owned entities with regional monopolies. Today, all consumers, including households and businesses, are able to “shop around” for their electricity, switching to a different supplier or tariff to take advantage of better prices and services.
In principle, that is exactly what liberalised retail markets are supposed to provide: greater consumer choice and protections. But that’s only the case if it’s easy for consumers to switch suppliers and for new suppliers to enter the market. That’s how markets are supposed to stay competitive to deliver low prices and a high quality of service. That was the great hope of electricity policy in 1999, but after two decades, there’s little to celebrate.
To enhance competition, smaller suppliers have been exempt from contributing towards the cost of decarbonisation policies. Known as “the threshold obligation”, this encouraged the entry of smaller companies into Britain’s retail electricity market, but the increase from six suppliers in 1999 to more than 70 in 2019 came at a cost. Many new suppliers have gone bankrupt due to unsustainable business models, resulting in consumers footing unpaid industry bills
Plenty of (Surfaces) need to be present in atmosphere.
Answer:
D. The enteric nervous system will slow down digestion to conserve energy.
Explanation:
The enteric nervous system is like the digestive system's very own brain. It controls the way the digestive system functions. In a fight or flight response, the enteric system slows down the digestive system, this is to make sure that the body has enough energy to course through our muscles and brain to prepare for a "fight" or "flight."
When an allosteric enzyme is directly affected by a molecule that is not its substrate, this effect on the enzyme is called a heterotropic effect.
<h3>What is an allosteric enzyme?</h3>
Allosteric enzymes are catalysts that exhibit a site for binding that is distinct from the active site.
Allosteric enzymes are controlled by many effector compounds that can bind to different sites.
The active site of the enzyme is the molecular domain of this protein where reactants can bind during a chemical reaction.
The heterotropic effects occur when the ligands of allosteric modulators (effectors) are linked to the enzyme.
An allosteric modulator is a molecule that binds to the enzyme in a site different to the active site and this binding alters its tridimensional conformation, thereby activating it or deactivating it.
In conclusion, when an allosteric enzyme is directly affected by a molecule that is not its substrate, this effect on the enzyme is called a heterotropic effect.
Learn more about allosteric enzymes here:
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