Describe hydrogen bonding

1 answer:

3 0

A hydrogen bond is the electromagnetic attraction between polar molecules in which hydrogen is bound to a larger atom, such as oxygen or nitrogen. This is not a sharing of electrons, as in a covalent bond. Instead, this is an attraction between the positive and negative poles of charged atoms.

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Geneticists can transfer a gene from a DNA of one organism into another through a process called ...............................

77julia77 [94]

Answer:

The answer is B.

Explanation:

Genetic engineering involve the change of genetic material of an organism by removing, changing or inserting individual genes.

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1 year ago

Which of the following traits do archaeans and bacteria share?

alex41 [277]

Answer:

The correct answer is: E) both B and C.

Explanation:

Bacteria and Archaea forms two distinct and different Domains in the Taxonomic classification system.
Nuclear envelope that surrounds and protects the genetic material by forming the Nucleus is absent in both Archaea and Bacteria. Both of them possess a region called the Nucleoid where their genetic material is located.
Plasma membrane that surrounds the cell and maintains integrity of the cell structure is present in both Bacteria and Archaea. Although the composition of lipid in the plasma membrane is different in each.
However, they vary in their cell wall composition. The cell wall of the bacteria is rich in a compound called peptidoglycan while the cell wall of archaea lacks peptidoglycan and is rich in polysaccharides and glycoproteins.

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Why is your respiratory system necessary for your body to live

Sonja [21]

Answer:

The respiratory system is necessary for an organism's body to live because it introduces oxygen-rich air, which is needed to perform vital functions, while at the same time promoting the elimination of carbon dioxide.

Explanation:

Oxygen (O₂) is necessary for life because it participates in the process of cellular respiration, a mechanism that allows the oxidation of glucose to form energy in the form of ATP.

The respiratory system is made up of a set of organs that carry air into the body and facilitate gas exchange, i.e. the entry of O₂ into the blood and the elimination of potentially harmful carbon dioxide (CO₂).

This exchange of gases occurs in structures called pulmonary alveoli, whose surface is located in relation to the pulmonary capillary vessels.

The entry of air into the lungs brings O₂ to the alveoli, which will diffuse into the pulmonary capillary for the process of hematosis or oxygenation of the blood.
CO₂, a product of metabolism, leaves the capillary to the alveoli, to join the air that will be expelled during expiration.

Both O₂ and CO₂ require a transport molecule in the blood, red blood cell hemoglobin, which binds the gases and allows them to be transported to and from the tissues.

Learn more:

Exchange of respiratory gases brainly.com/question/4569375

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Why does the level of fsh decrease and remain at a relatively low level during days 15-28 of the cycle?

Rudiy27

The FSH will decrease and remain at a low level during the 15-28 days of the cycle because at this stage, the egg is waiting to be fertilized. The FSH needs to be low to prepare the uterus lining in case the egg will be fertilized.

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Science is open to change.<br>O True<br>O False

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False not unless it has went under many experiment to be proven else how

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2 years ago

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