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SpyIntel [72]
3 years ago
13

One of the many unique properties of water is that its solid form (ice) is less dense than its liquid form. Most substances beco

me more dense when in solid form, because their molecules are more tightly compact. Why is this property of water so important to life on Earth?
Biology
2 answers:
mote1985 [20]3 years ago
4 0

Further explanation

the function of water has the most important role in the life of every living thing on this Earth. Water is one of the basic needs for all living things. It's not only humans who need water. Without water, there is no life in this world.

In humans, water usually functions as an industrial, agricultural, transportation, and so on. Not only humans, animals and plants need water.

To understand more about water, Thursday has summarized matters related to water. Summarized from various sources, this is an explanation in the form of a brief understanding of water and the function of water for the life of living things on Earth.

Scientific explanation says that water can be interpreted as a chemical compound consisting of two elements, namely the element H2 (hydrogen) which binds to the element O2 (oxygen) which then produces a water compound (H2O). This compound is found on Earth. The layer of water that surrounds the Earth is called a hydrosphere.

Water is a solvent that has a very important function in the life of living things. That is because the chemical nature of water that is dissolving, so it is very important in the metabolic processes of living things.

Learn  More

water brainly.com/question/3687183

Details

Class: high school

Subject: Biology

Keywords :water, humans, element

Gelneren [198K]3 years ago
3 0

The presence of hydrogen bond is one factor that explains the fact that ice floats over water because it has less density.

Due to this, rivers and lakes freeze from the surface whereas it is in liquid state at the bottom which allows the sea animals to survive even in colder temperatures.

Water makes up at least 70% of earth and 65% of our bodies and this property of water is essential for our lives as it maintains the survival.


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Two of these options are correct (A & E)

So, the correct option is D.

<h3>About ADH/Vasopressin:</h3>
  • Other name for ADH is arginine vasopressin.
  • It is a hormone produced by the brain's hypothalamus and kept in the posterior pituitary gland.
  • It instructs the kidneys on how much water to hold onto.
  • The amount of water in your blood is continuously regulated and balanced by ADH.
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  • These sensors and baroreceptors tell your kidneys to store or release water to maintain a healthy range of these substances when particle concentration is out of balance or blood pressure is too low.
  • They also control how thirsty your body feels.
  • The particular nerve cells that make anti-diuretic hormone are located in the hypothalamus, a region at the base of the brain.
  • The hormone is sent by the nerve cells to the posterior pituitary gland, where it is released into the bloodstream, via their nerve fibers (axons).
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  • This is achieved by permitting a specific region of the kidney to enable water from the urine to be reabsorbed into the body.
  • As a result, the bloodstream is replenished with more water, urine concentration increases, and water loss is decreased.

<h3> Aquaporins and ADH:</h3>
  • Antidiuretic hormone levels above a certain threshold narrow (constrict) blood arteries, raising blood pressure.
  • The only way to fully recover from a lack of bodily fluid (dehydration) is by drinking more water.
  • The aquaporin 2 protein is made according to instructions from the AQP2 gene.
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  • Collecting ducts, a network of tiny tubes that reabsorb water from the kidneys into the bloodstream, are found in the kidneys where it is discovered.
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  • A hormone known as vasopressin or antidiuretic hormone regulates the positioning of these channels (ADH).
  • The body creates more ADH when the amount of fluid consumed is low or when there is a lot of fluid loss (for instance, through sweating).
  • Aquaporin 2 water channels are ultimately inserted into the membrane of collecting duct cells by this hormone, which sets off chemical events.
  • Due to the re-absorption of water into the bloodstream made possible by these channels, the urine is more concentrated.
  • Less ADH is created when fluid intake is sufficient. Aquaporin 2 water channels are taken out of the collecting duct cells' membrane in the absence of signals from ADH.
  • During these times, the urine is more diluted and less water is reabsorbed into the bloodstream.

Disclaimer: The given question was incomplete on the portal. Here is the complete question.

Question: ADH or Vasopressin...

A. Promotes the insertion of aquaporins (specifically AQP2) into the apical membrane of the collecting duct cells

B. Promotes the insertion of aquaporins (specifically AQP3 and AQP4) into the basolateral membrane of the collecting duct cells

C. All of these options are correct

D. Two of these options are correct

E. When released, increases the osmolarity of the excreted urine

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