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3 years ago

(surface tension, cohesion, polar, hydrogen bonding).

Biology

1 answer:

weeeeeb [17]3 years ago

5 0

Answer:

1. Polar 2. Hydrogen bonding 3. Cohesion 4. Surface tension

Explanation:

1. Water is a polar molecules due to the presence of unbalanced charges in its covalent bond.

2. This unbalanced charges causes the molecules to be polar and thus form hydrogen bonds with nearby molecules due to their opposite charges. The hydrogen atom carries the positive charge while the oxygen atom carries the negative charge. The opposing charges thus causes hydrogen and oxygen atoms in nearby molecules to be attracted to each other.

3. This attraction of the water molecules to each other is called cohesion. Cohesion is the force of attraction between similar molecules and this force of attraction is called a cohesive force.

4. Since the water molecules are attracted to each other due to a cohesive force, this cohesive force causes a thin film to form called surface tension. Thus, surface tension is the ability of the surface of a liquid to resist external forces due to cohesive forces in its molecules and thus form a thin film.

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WARRIOR [948]

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3 years ago

The value of n, the Hill coefficient, for hemoglobin is about _________ as great as the value for myoglobin.

ludmilkaskok [199]

The value of n, the Hill coefficient, for hemoglobin is about 2 to 3 times as great as the value for myoglobin.

Hill Equation

The two closely related equations that help to explain the binding of macromolecules to ligands are called the Hill equation. It helps to quantify the interaction between various ligand binding sites.

Hill coefficient

It is used to describe the cooperativity of ligand binding. It can be positive and negative depending on the value of the Hill coefficient. If the value of the Hill coefficient is more than one then it exhibits positively cooperative binding and if it is less than one then it exhibits negatively cooperative binding. Then there is the noncooperative binding where the Hill coefficient value is one. As for the hemoglobin and myoglobin, the values are,

Hill coefficient of hemoglobin is 2.7 - 3.
Hill coefficient of myoglobin is 1.0.

Thus hemoglobin is positively cooperative and myoglobin exhibits noncooperative binding.

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2 years ago

Which structure connects the left and right cerebral hemispheres in the human brain?

victus00 [196]

<h2>Corpus callosum</h2>

Explanation:

The corpus callosum associates the left half of the cerebrum to the correct side, each side being known as a side of the equator. The association permits data to go between the two parts.
Corpus callosum is Latin for "extreme body," and the corpus callosum is the biggest connective pathway in the mind, being comprised of in excess of 200 million nerve strands.
Occasionally, an individual will be conceived without a corpus callosum. This is known as agenesis of the corpus callosum, and it causes a wide assortment of physical and social indications.
Each side of the mind controls development and feeling in the contrary portion of the body. The halves of the globe additionally process data, for example, language.
In this manner, physical coordination and taking in complex data requires the two sides of the cerebrum to cooperate.

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3 years ago

During an investigation, Steven filled two cups with the same amount of water and placed them in a 20 degrees Celsius room for 3

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Answer:

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2 years ago

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finlep [7]

Explanation:

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