Q:

What is a sucrose gradient?

A:

Quick Answer

A sucrose gradient is a type of density gradient used to obtain the centrifugal separation of differently sized particles. Sucrose gradients are made by layering sucrose solutions of decreasing concentrations into a centrifuge tube to create a gradient of decreasing density or viscosity.

Know More

Full Answer

Centrifugation is a technique used to separate small particles of different size, shape or density by subjecting mixtures of particles to high rotational speeds. Particles with different attributes sediment or migrate at different rates during centrifugation, allowing them to be isolated. Several types of centrifugal separation techniques rely on the use of density gradients such as sucrose gradients to stabilize or differentiate separate groups of sedimenting particles.

Learn more about Organic Chemistry
Sources:

Related Questions

  • Q:

    What is "organic chemistry" currently defined as?

    A:

    Organic chemistry is a sub-discipline of chemistry that involves the scientific study of the structure, properties and reactions of organic compounds and organic materials, such as matter in its various forms that contain carbon atoms. Modern research focuses on organic chemistry involving organometallics, including lanthanides and especially transition metals.

    Full Answer >
    Filed Under:
  • Q:

    What is the Bohr effect?

    A:

    The Bohr effect in physiology describes the effect of pH on hemoglobin's ability to load and unload oxygen. When pH is low, the oxygen binds to hemoglobin less strongly. When pH is high, such as in the lungs, the oxygen and hemoglobin are more tightly bound.

    Full Answer >
    Filed Under:
  • Q:

    Is sucrose ionic or covalent?

    A:

    Sucrose is a covalent compound. Whether a compound is ionic or covalent depends on the relative attraction the compound's atoms have for electrons. Sucrose is composed of carbon, hydrogen and oxygen, all of which have similar enough attractions for electrons to form covalent bonds with each other.

    Full Answer >
    Filed Under:
  • Q:

    What is sulfur made of?

    A:

    According to the Encyclopedia Britannica, sulfur is a chemical element from the periodic table and thus is not made of any other elements. However, like the other periodic-table elements, a sulfur atom is made up of protons, neutrons and electrons.

    Full Answer >
    Filed Under:

Explore