For Each of the Following Sentences, Fill in the Blanks

question 56

Essay

For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below.Not all words or phrases will be used; each word or phrase should be used only once.
$\begin{array}{lll}\text { allosteric } & \text { ligand } & \text { secondary } \\\text { domain } & \text { primary } & \text { subunit } \\\text { helix } & \text { quaternary } & \text { tertiary }\end{array}$

The α helices and β sheets are examples of protein __________ structure.A protein such as hemoglobin, which is composed of more than one protein __________, has __________ structure.A protein's amino acid sequence is known as its __________ structure.A protein __________ is the modular unit from which many larger single-chain proteins are constructed.The three-dimensional conformation of a protein is its __________ structure.

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Definitions:

Radon-222

A naturally occurring radioactive gas produced by the decay of uranium in the Earth's crust, known for its health risks, particularly lung cancer, when accumulated in buildings.

Air Pollutant

Substances in the air that can have harmful effects on the health of living creatures or the environment, including gases, particulates, and biological molecules.

Global Warming

The ongoing rise in Earth’s surface temperature, primarily due to the emission of greenhouse gases from human activities, leading to climate change and associated impacts.

Stratosphere

The layer of the Earth's atmosphere located above the troposphere, characterized by a slight temperature increase with altitude and the presence of the ozone layer.