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3 years ago

Altering protein structure

2 answers:

5 0

The alteration in the protein structures can take place due to many reason. Once, the structure of the protein is altered, it cannot perform its function, as it cannot bind to the site for which it is designated.

Most of the biological processes use proteins in their completion. In case, the protein cannot perform its function, the metabolic process associated with that particular protein may stop and cause severe illness.

The heat can cause the denaturation of the proteins. The proteins are made up of amino acid sequences, the heat can break the peptide bond present between the amino acids present in protein, which can result in alteration of protein.

Hence, the correct answer is option (d). all of them are correct.

boyakko [2]3 years ago

4 0

The correct answer is d. all of the answers are true.

The function of a protein is dependent on its three-dimensional (3D) structure, so when it structure is altered its function is altered too. Disruption of the protein structure is called denaturationo f the protein and it can be achieved by changing the pH, changing the temperature (usually heating), changin the salt concentration... Consequence of denaturation is loss of biological activity which can lead to seriuos medical consequences.

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Alveoli are most likely to collapse (resulting in atelectasis) when which condition exists

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Atelectasis: Atelectasis is a complete or partial collapse of the entire lung or area of the lung. It occurs when the tiny air sacs (alveoli) within the lung become deflated or possibly filled with alveolar fluid. . General anesthesia is a common cause of atelectasis. It changes your regular pattern of breathing and affects the exchange of lung gases, which can cause the air sacs (alveoli) to deflate.

Conditions when atelectasis occurs: There are four primary causes of atelectasis: hypoventilation, airway obstruction, airway compression, and adhesions.

Hypoventilation

Hypoventilation, or breathing at an abnormally slow rate, is common during surgery, especially with general anesthesia, or when a person is placed on a respirator. The very act of shallow breathing prevents air from getting to the alveoli, causing the air sacs to deflate and collapse.

Airway Obstruction

Airway obstruction may be caused when something blocks a passage either inside the lung (like a mucus plug or a foreign object) or outside of the lungs (like a tumor which presses on the airway and causes obstruction).

Airway Compression

Compression of the airways is often caused by the buildup of fluid in the space surrounding the lungs.

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