Membrane Definition & Meaning - Merriam-Webster
The meaning of MEMBRANE is a thin soft pliable sheet or layer especially of animal or plant origin. How to use membrane in a sentence.
Cell Membrane - The Definitive Guide - Biology Dictionary
2020年10月19日 · The cell membrane, also known as the plasma membrane, is a double layer of lipids and proteins that surrounds a cell. It separates the cytoplasm (the contents of the cell) from the external environment.
Membrane | Definition, Structure, & Functions | Britannica
2024年10月30日 · membrane, in biology, the thin layer that forms the outer boundary of a living cell or of an internal cell compartment. The outer boundary is the plasma membrane, and the compartments enclosed by internal membranes are called organelles.
Membrane - Wikipedia
A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes. [1] .
MEMBRANE | English meaning - Cambridge Dictionary
MEMBRANE definition: 1. a thin piece of skin that covers or connects parts of a person's or animal's body: 2. a very…. Learn more.
MEMBRANE | definition in the Cambridge English Dictionary
MEMBRANE meaning: 1. a thin piece of skin that covers or connects parts of a person's or animal's body: 2. a very…. Learn more.
MEMBRANE Definition & Meaning - Dictionary.com
A thin, flexible layer of tissue that covers, lines, separates, or connects cells or parts of an organism. Membranes are usually made of layers of phospholipids containing suspended …
Cell membrane | Definition, Function, & Structure | Britannica
2024年11月18日 · Cell membrane, thin membrane that surrounds every living cell. The cell membrane functions as a barrier, keeping cell constituents in and unwanted substances out, and as a gate, allowing transport into the cell of essential nutrients and movement from the cell of waste products.
Plasma Membrane (Cell Membrane) - National Human Genome …
1 天前 · Definition The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell wall is attached to the plasma membrane on its outside surface. The plasma membrane consists of a lipid bilayer that is semipermeable.
Cell membrane Definition & Meaning - Merriam-Webster
The meaning of CELL MEMBRANE is a membrane of a cell; especially : a semipermeable limiting layer of cell protoplasm consisting of a fluid phospholipid bilayer with intercalated proteins : plasma membrane. How to use cell membrane in a sentence.