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•also called the plasma membrane or plasmalemma
•surrounds all cells
•controls the movement of substances in and out of cells.
•Largest cellular organelle in animals
•contains a wide variety of molecules, Protein
lipids
•contains the majority of the cell's genetic material•found by Franz Bauer
- The cell membrane is not just a simple barrier, but rather a dynamic structure that helps regulate the movement of substances in and out of the cell.
- The cell membrane is not solid, but is actually composed of a fluid mosaic of lipids and proteins that can move and change shape.
- The cell membrane is not impermeable, as it allows certain molecules to pass through via channels or transport proteins.
umm its semi-permeable and all cells have it but the animal cell only has one and the plant cell has one and a cell wall
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Is the fallowing sentences true or false the cell wall lies inside the cell membrane?
Well, the cell membrane is part of the cell. It's like a plastic wrap around the cell to keep it together. It is a thin shell only found on animal cells. Cell walls are like hard shells. These are only found on plant cells. So, its false.
What are some facts about the cell membrane?
it controls what goes in and out of the cell like a door
What about a cell's resting membrane potential is FALSE?
A false statement about a cell's resting membrane potential could be that it does not involve the movement of ions across the cell membrane. In reality, the resting membrane potential is primarily due to the unequal distribution of ions, such as sodium and potassium, across the membrane, maintained by ion channels and pumps.
Is the following sentence true or false the main function of the cell membrane is to control comes into and out of a cell?
TRUE
What is FALSE regarding the membrane potential?
Both potassium and sodium ions can "leak" through the cell membrane due to diffusion.
Is the fallowing sentences true or false the cell wall lies inside the cell membrane?
Well, the cell membrane is part of the cell. It's like a plastic wrap around the cell to keep it together. It is a thin shell only found on animal cells. Cell walls are like hard shells. These are only found on plant cells. So, its false.
What are some facts about the cell membrane?
it controls what goes in and out of the cell like a door
Is it true that the transport proteins span the cell membrane allowing the selectively permeable membrane to regulate which molecules enter an leave the cell?
false
Is the main function of the cell membrane is to control what comes into and out of the cell true or false?
True.
Is the main function of the cell membrane is to control what comes into comes into and out of a cell true or false?
It is true
What about a cell's resting membrane potential is FALSE?
A false statement about a cell's resting membrane potential could be that it does not involve the movement of ions across the cell membrane. In reality, the resting membrane potential is primarily due to the unequal distribution of ions, such as sodium and potassium, across the membrane, maintained by ion channels and pumps.
Hydrophilic ends of proteins are oriented toward membrane surfaces. true or false?
False. Hydrophilic ends of proteins are oriented away from the membrane surfaces, as they interact with the aqueous environment outside or inside the cell. This allows them to interact with water molecules and maintain stability within the cell membrane.
Is the following sentence true or false the main function of the cell membrane is to control comes into and out of a cell?
TRUE
Proteins at the inner surface of the plasma membrane attach the membrane to the cells support structure making the cell rigid?
false
What is FALSE regarding the membrane potential?
Both potassium and sodium ions can "leak" through the cell membrane due to diffusion.
Is the glycocalyx is often referred to as the cell coat which is somewhat fuzzy and sticky with numerous cholesterol chains sticking out from the surface of the cell membrane .true or false?
True. The glycocalyx is a fuzzy layer of carbohydrates on the outer surface of the cell membrane. It helps to protect the cell, facilitate cell-cell interactions, and provides recognition sites for cell signaling. Cholesterol chains can be found embedded within the cell membrane but do not protrude out of the surface.
The cell membrane controls what goes in and out of the cell true or false?
True. The cell membrane is selectively permeable, meaning it regulates the movement of substances in and out of the cell to maintain internal balance and protect against harmful substances.
