About 55 results
Open links in new tab
  1. Plasma | Physics, State of Matter, & Facts | Britannica

    Mar 17, 2026 · Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become …

  2. Blood - Plasma, Components, Functions | Britannica

    Apr 13, 2026 · Blood - Plasma, Components, Functions: The liquid portion of the blood, the plasma, is a complex solution containing more than 90 percent water. The water of the plasma is freely …

  3. Plasma | Definition, Function, & Composition | Britannica

    Apr 10, 2026 · Plasma helps to distribute heat throughout the body and to maintain homeostasis, or biological stability, including acid-base balance in the blood and body. Components of blood Blood is …

  4. Plasma - Natural, State, Matter | Britannica

    Mar 17, 2026 · Plasma - Natural, State, Matter: It has been suggested that the universe originated as a violent explosion about 13.8 billion years ago and initially consisted of a fireball of completely ionized …

  5. Cell membrane | Definition, Function, & Structure | Britannica

    Apr 14, 2026 · A cell membrane is a thin covering that surrounds every living cell. It functions as a barrier, keeping cell constituents in and unwanted substances out, and as a gate, allowing transport …

  6. Blood | Definition, Composition, Functions, & Facts | Britannica

    Apr 13, 2026 · Blood is a fluid that transports oxygen and nutrients to cells and carries away carbon dioxide and other waste products. It contains specialized cells that serve particular functions. These …

  7. Plasma - Fusion, Lighting, Astronomy | Britannica

    Mar 17, 2026 · Plasma - Fusion, Lighting, Astronomy: The most important practical applications of plasmas lie in the future, largely in the field of power production. The major method of generating …

  8. blood - Kids | Britannica Kids | Homework Help

    Blood is made up of red blood cells, white blood cells, platelets, and plasma. Encyclopædia Britannica, Inc.

  9. Plasma - Ionosphere, Upper Atmosphere, Electrons | Britannica

    Mar 17, 2026 · Plasma - Ionosphere, Upper Atmosphere, Electrons: At altitudes below about 2,000 kilometres, the plasma is referred to as the ionosphere. Thousands of rocket probes have helped …

  10. Intracellular fluid | Description, Function, & Facts | Britannica

    Intracellular fluid is a substance within living cells that is made up primarily of water and molecules such as dissolved ions and is a major component of the cytoplasm and cytosol.