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Why do marine organisms living in polar regions have a very high proportion of cholesterol in their membrane?
Wiki User
∙ 14y ago
Marine organisms living in polar regions have a very high proportion of cholesterol in membranes to keep the membranes more fluid and keep the molecules moving faster because in cold temperature, molecules move slower.
Wiki User
∙ 14y ago
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The hydrophilic regions of a membrane protein are most likely to be found?
The hydrophilic regions of a transmembrane protein are likely to be found on the exterior of the membrane. The transmembrane protein may have three parts: a hydrophilic segment, a hydrophobic segment, and another hydrophilic segment. The hydrophobic region would be in between the hydrophilic regions. The hydrophobic region will be embedded in the membrane and the hydrophilic regions will be on the inside and outside of the membrane.
How do cells use the process of osmosis and diffusion to take in nutrients and to get rid of wastes?
== == Diffusion is: the movement of particles from regions of higher concentration to regions of lower concentration. Osmosis is: the diffusion of water through a semipermeable membrane.
What process occurs as water moves from regions of higher water concentration to regions of lower water concentrtion across a selectively permeable membrane?
Osmosis
What are three main functional regions of the cell?
The regions or general parts of the cell are1. plasma/cell membrane = outer membrane which separates the inside of the cell from the external environment2. cytoplasm = substance in which organelles are suspended3. organelles = permanent structures that carry out specific acitivities3. inclusions = the secretion and storage areas of the cell
Explain the function of the cell membrane?
The plasma membrane separates the cell from its' surrounding environment and is arranged in a bilayer sheet of phospholipids. It is a mosaic of molecules in a fluid. That is, the molecules are able to float around slowly (like islands in the sea). The cholesterol molecules are scattered among the phospholipids to allow the membrane to function properly at body temperature. Most of the bilayer is hydrophobic; therefore water or water-soluble molecules do not pass through easily. A cell controls what moves through the membrane by means of membrane proteins embedded in the phospholipid bilayer. Some membrane proteins have carbohydrates attached to them, forming glycoproteins that act as identification markers.
Why does marine organism living in polar regions have high proportion of cholesterol in their membrane?
Marine organisms living in polar regions have a very high proportion of cholesterol in membranes to keep the membranes more fluid and keep the molecules moving faster because in cold temperature, molecules move slower.
Why do marine organisms living in polar regions have a very high proportion of cholesterol in their membranes?
Organisms living in extremely cold temperatures run the risk of hypothermia and even their cells freezing. Cellular membranes with more cholesterol help insulate the organism and are less prone to freezing.
Why do marine organism living in polar regions have a very high proportion of cholesterol in their membranes?
Organisms living in extremely cold temperatures run the risk of hypothermia and even their cells freezing. Cellular membranes with more cholesterol help insulate the organism and are less prone to freezing.
Are a cell membrane's chemicals locked into place?
Any biological cell membrane or plasma membrane is made up of phospholipid bi-layer, cholesterol, small amounts of glycolipids and specialized proteins. Some components can move little bit around their position but others such as cholesterol add to the rigidity of the membrane. Lipid rafts are also immovable regions of the membrane.
What is small organisms that live in the sunlight regions of the oceans?
Small organisms that live in the sunlight regions of the ocean is called Plankton!
How do nonpolar regions of a membrane proteins cause proteins to be held in the membrane?
IB sucks
The hydrophilic regions of a membrane protein are most likely to be found?
The hydrophilic regions of a transmembrane protein are likely to be found on the exterior of the membrane. The transmembrane protein may have three parts: a hydrophilic segment, a hydrophobic segment, and another hydrophilic segment. The hydrophobic region would be in between the hydrophilic regions. The hydrophobic region will be embedded in the membrane and the hydrophilic regions will be on the inside and outside of the membrane.
What is the most populous regions of the world has the least proportion of rural population?
North America
What is the name of regions with distinct climates and organisms?
biosphere
Which statement most accurately explains why cholesterol and phospholipids are amphipathic but fats are not?
Cholesterol and phospholipids contain both hydrophilic and hydrophobic regions; fats are primarily hydrophobic. Save
Symbiosis of organisms in the polar regions?
what is the polar region symboisis
What question did Charles Darwin answer?
Why do different regions have different organisms
