A cell membrane is best described by the terms "phospholipid bilayer," "selectively permeable," and "fluid mosaic model." The phospholipid bilayer forms the fundamental structure, allowing certain substances to pass while blocking others, thus making it selectively permeable. The fluid mosaic model illustrates the dynamic nature of the membrane, where various proteins and lipids can move laterally within the layer, contributing to its functionality.
The cell membrane controls what goes in an out of the cell.
No, the unit model and Robertson's model of the cell membrane are not the same. The unit model describes the structure of the lipid bilayer, while Robertson's model, also known as the fluid mosaic model, describes the dynamic nature of the membrane with proteins embedded in the lipid bilayer.
The fluid mosaic model describes the structure of the cell membrane. It depicts the membrane as a fluid phospholipid bilayer with embedded proteins, cholesterol, and carbohydrates. This model highlights the dynamic nature of the membrane and how its components move and interact with each other.
yes, in terms of substances used; however, depending on where in the body the cells is positioned both the nuclear and cell membrane may differ.
The characteristic that best describes all eukaryotic cells is the presence of a membrane-bound nucleus. This nucleus houses the cell's genetic material (DNA) and separates it from the cytoplasm, allowing for more complex regulation of gene expression and cell functions. Additionally, eukaryotic cells typically contain other membrane-bound organelles, such as mitochondria and the endoplasmic reticulum, contributing to their functional complexity.
Layered
Cell Membrane
The movement of water through a semipermeable membrane is called osmosis.
The cell membrane controls what goes in an out of the cell.
The solute concentration is equal on both sides of the cell membrane.
The fluid mosaic model describes the cell membrane as a fluid structure where lipids and proteins are able to move around and change position. This constant shifting allows the cell membrane to maintain flexibility and adapt to changing conditions.
Which sentence best describes exocytosis? A. a vesicle fuses to a lysosome and its contents are destroyed B. a vesicle fuses to the cell membrane and its contents enter the cell C. a vesicle fuses to the cell membrane and its contents leave the cell D. a vesicle fuses to the nuclear envelope and its contents enter the nucleus? Exocytosis is the durable, energy-consuming process by which a cell directs the contents of secretory vesicles out of the cell membrane into the extracellular space.
The terms "plasma membrane" and "cell membrane" are often used interchangeably to refer to the same structure. Both terms refer to the semipermeable lipid bilayer that surrounds the cell and controls the movement of substances in and out of the cell.
what would best represent a cell membrane in an animalcell what would best represent a cell membrane in an animalcell
Cell membrane
It is called "the gate keeper".
organelles