Q:

What are channel proteins?

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Quick Answer

Channel proteins are proteins that enable the transportation of certain substances and materials across cell membranes. Channel proteins consist of a wide group of more than 20 different organic compounds and, although they share the umbrella title of channel proteins, these substances play different roles. Channel proteins are formed in long chains of amino acids; the sequence of these chains dictates the function and shape of each channel protein.

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Full Answer

Bobcats, or Lynx rufus, are endemic to the North American continent. Highly adaptable, these animals thrive in forests, swamps, deserts, agricultural areas and sometimes even in suburban areas. It is estimated that there are 725,000 to 1,020,000 bobcats in the wild. Its name is based on the appearance of its tail, which looks cut or "bobbed."

Bobcats are rarely seen because they are mostly active at night. As strict carnivores, these fierce hunters prey on rabbits, birds, mice, squirrels and other smaller animals. Once they have spotted their prey, they calculate its exact location, and then leap as long as 10 feet to pounce on top of it to pin it down.

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Related Questions

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    What type of macromolecule is an enzyme?

    A:

    Enzymes are proteins, which are macromolecules that perform many varied functions within the human body. The role of enzymes is to speed up the rates of reactions occurring in the body or to initiate reactions that normally would not take place.

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    What is the function of the Golgi body?

    A:

    The Golgi apparatus collects simple chemicals in the cell and assembles them into large, complex structures such as proteins. It also plays a role in the process of simple chemical secretion by forming closed vesicles around the substance to be transported. These vesicles then pinch off from the Golgi apparatus and drift to the cell's plasma membrane where the transported substance is released from the cell.

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  • Q:

    How does DNA determine the traits of an organism?

    A:

    The pattern of base pairs in the DNA double helix encodes the instructions for building the proteins necessary to construct an entire organism. DNA, or deoxyribonucleic acid, is found within most cells of an organism, and most organisms have their own unique DNA code. One exception to this is cloned organisms, which have the same exact DNA code as their parents do.

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  • Q:

    What important polymer is located in the nucleus?

    A:

    The most important polymers located within the nucleus of a cell are proteins and DNA molecules. Proteins exist as enzymes and structural components of a cell, and DNA functions as the blueprint for cellular reproduction processes that transfer hereditary information from cell to cell.

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