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What roles do membrane proteins play in making the cell making selectively permeable?
Shidd chillen bra . you not gettin the answer because i dont know it
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What roles do membrane proteins play in making the cell membrane selectively premable?
The proteinshave certain 'identifiers' attached to them, which only allow certain particles through, making it selectively permeable.
WHAT set of terms best describes a cell membrane?
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.
What makes phospholipids the prime structure for making a cell selectively permeable?
The property of phospholipids that makes them ideal for making up the selectively permeable cell membrane is their ability to form a lipid bilayer. A hydrophilic head and a hydrophobic tail play an important role in the cell membrane.
Is latex a permeable membrane?
No, latex is not a permeable membrane. Latex is a type of material that is impermeable to fluids and gases, making it suitable for use in applications where a barrier is needed.
What are the characteristics of the plasma membrane?
The membrane that surrounds the cytoplasm of a cell; it is also called the plasma membrane or, in a more general sense, a unit membrane. This is a very thin, semifluid, sheetlike structure made of four continuous monolayers of molecules. The plasma membrane and the membranes making up all the intracellular membranous organelles display a common molecular architectural pattern of organization, the unit membrane pattern, even though the particular molecular species making up the membranes differ considerably. All unit membranes consist of a bilayer of lipid molecules, the polar surfaces of which are directed outward and covered by at least one monolayer of nonlipid molecules on each side, most of which are protein, packed on the lipid bilayer surfaces and held there by various intermolecular forces. Some of these proteins, called intrinsic proteins, traverse the bilayer and are represented on both sides. The segments of the polypeptide chains of these transverse proteins within the core of the lipid bilayer may form channels that provide low-resistance pathways for ions and small molecules to get across the membrane in a controlled fashion. Sugar moieties are found in both the proteins and lipids of the outer half of the unit membrane, but not on the inside next to the cytoplasm. The molecular composition of each lipid monolayer making up the lipid bilayer is different. The unit membrane is thus chemically asymmetric.
Proteins at the inner surface of the plasma membrane attach the membrane to the cells support structure making the cell rigid?
false
Is making a cup of tea diffusion osmosis or active transport?
Making a cup of tea involves diffusion, which is the passive movement of particles from an area of high concentration to an area of low concentration. Osmosis is the diffusion of water across a selectively permeable membrane, which is not directly involved in making tea. Active transport involves the movement of particles against a concentration gradient and requires energy, which is not typically needed for making tea.
How the variation of pH affect the permeability of beet root plasma membrane?
Decreasing the pH from alkaline to acidic denatures the proteins within the membrane, making them less functional and efficient. This makes the cell membrane more permeable and allows the red dye, betalain to escape into the external solution via diffusion. The dye goes down a concentration gradient from a higher to a lower concentration.
Where cell organelle is where proteins are made?
Ribosomes within the cytosol (if they are free) or within the endoplasmic reticulum (if they are membrane bound) are responsible for making proteins.
Which cell organelle where proteins are made?
Ribosomes within the cytosol (if they are free) or within the endoplasmic reticulum (if they are membrane bound) are responsible for making proteins.
Is making protein a function of the cell membrane?
No. It is the ribosomes. The ribosomes take amino acids and convert them into proteins.
Is it true that proteins at the inner surface of the plasma membrane attach the membrane to the cells support structure making the cell rigid?
The primary proteins of cellular structure (such as in microfilaments or intermediate tubules) is myosin and actin, and sometimes collagen, and all of these are proteins in the cell. Because proteins generally connect to similar structures (aka other proteins), and the cellular membrane must SOMEHOW be attached to the primary cell structure, and it is easier to connect to the inner membrane than outer, the answer is yes.
