How Do You Spell PLASMA-MEMBRANE?

Pronunciation: [plˈazməmˈɛmbɹe͡ɪn] (IPA)

The spelling of "plasma-membrane" is straightforward when understood phonetically. Using the International Phonetic Alphabet (IPA), we can break it down into its individual sounds: /ˈplæzmə/ /ˈmɛmˌbreɪn/. The first part, "plasma," is pronounced with a short "a" sound (as in "cat"), followed by a stressed schwa vowel sound (as in the second syllable of "sofa"). The second part, "membrane," is pronounced with an "e" sound (as in "red") followed by a diphthong "ai" sound (as in "pai se"). Together, they form the "plasma-membrane."

PLASMA-MEMBRANE Meaning and Definition

  1. The plasma membrane, also referred to as the cell membrane, is a vital component of all cells found in living organisms. It is a thin, flexible, and selectively permeable barrier that surrounds the cell, separating its internal components from the external environment.

    The plasma membrane is primarily composed of a lipid bilayer, consisting of two layers of phospholipids. These phospholipids have a hydrophilic (water-loving) head and a hydrophobic (water-repelling) tail, resulting in the formation of a barrier that prevents the free passage of most substances into and out of the cell.

    Embedded within the lipid bilayer are various proteins that serve numerous functions. Some proteins act as transporters, facilitating the movement of specific ions and molecules across the membrane. Others act as receptors, allowing the cell to detect and respond to signals from other cells or the environment. Moreover, certain proteins are involved in cell adhesion, helping cells stick together and form tissues.

    The plasma membrane also contains cholesterol, which helps stabilize the structure of the membrane and regulate its fluidity. Additionally, carbohydrates are present on the outer surface of the membrane, forming glycoproteins and glycolipids that are involved in cell recognition and communication.

    The plasma membrane plays a crucial role in maintaining cell homeostasis by controlling the exchange of nutrients, ions, and waste products. It also serves as a protective barrier, preventing potentially harmful substances from entering the cell.

Common Misspellings for PLASMA-MEMBRANE

  • plazma membrane
  • -plasma membrane
  • plasama membrane
  • plasmamembrane
  • plesma membrane

Etymology of PLASMA-MEMBRANE

The word "plasma-membrane" is derived from two sources: "plasma" and "membrane".

The term "plasma" has its roots in the Ancient Greek word "plasma" (πλάσμα), which means "something molded or formed". In this context, "plasma" refers to the fluid portion of the cell that contains various molecules, ions, and proteins.

The word "membrane" comes from the Latin word "membrāna", which means "parchment" or "skin". In biology, a membrane refers to a thin layer of tissue or material that separates two compartments or structures.

When combined, the term "plasma-membrane" refers to the phospholipid bilayer that surrounds the cell and separates its internal contents from the external environment.