Proteins play key roles in olfaction. One kind of protein, called , attaches itself to hydrophobic odorant

Proteins play key roles in olfaction. One kind of protein, called , attaches itself to hydrophobic odorant molecules so that they may dissolve in watery mucous. A second class of proteins, to which odorant molecules become bound and initiate transduction, are coded by the largest family of genes in mammals and are called . Group of answer choices

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  1. Answer;

    -Proteins play a role in transport, enable movement, provide structure and support, and help make chemical reactions happen.

    -Nucleic acids carry genetic information, determine the structure of proteins, and help build proteins.


    -Biological macromolecules are the large molecules necessary for life, include carbohydrates, lipids, nucleic acids, and proteins.

    -Each of these types of macromolecules performs a wide array of important functions within the cell; a cell cannot perform its role within the body without many different types of these crucial molecules.

  2. Macro molecules are the molecules that plays a vital role in the body. It consists of carbohydrates, fats, protein and nucleic acids.

    All these macro molecules plays different role in the body. The Proteins play a major role in the body by helping in building the body. It plays a vital role in the transportation of materials.

    It also provides structural support , makes chemical reaction happen. Another macro molecule is nucleic acid which carries genetic information from one generation to another.

    It leads to the formation of protein structure.


  3. The correct answer is "Odorant-binding proteins (OBPs); Olfactory receptors (ORs)".


    Odorant-binding proteins (OBPs) are low-molecular soluble molecules that are secreted in high amounts in the nasal mucus layer. The precise biological activity of OBPs remains unclear, however, its solubility and ability to attach to hydrophobic odorant molecules suggest that they acts as carriers. A second class of proteins called olfactory receptors (ORs), act at the genetic level by initiating transduction once odorant molecules attach to them. ORs are coded by the largest family of genes, which include more than 100 genes and pseudogenes that represent around 3% of the genome.

  4. Transport proteins play a role in both active and passive transport to move molecules across the plasma membrane

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