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β 13y agoNuclear membrane
Christop Hodkiewicz
The nuclear pore complex is responsible for controlling the passage of substances into and out of the nucleus. It acts as a gateway that allows specific molecules, such as proteins and RNA, to move through it while blocking others. This selective transport helps in maintaining the integrity and proper functioning of the cell.
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β 9y agoThe nuclear membrane lets materials pass into and out of the nucleus. The nuclear membrane is also known as the nuclear envelope.
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β 11y agoNuclear envelope, or the nuclear membrane. This double lipid bilayer membrane is filled with pores that large molecules such as mRNA can use to exit the nucleus.
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β 12y agoNuclear membrane
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β 14y agoThe Nuclear Envelope
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β 13y agonuclear membrane
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β 12y agoThe cell membrane
Anonymous
through nuclear pores
The cell's membrane allows only certain substances to diffuse in and out of the cell.
Most animal cells (except for human red blood cells and some others) have a nucleus. It is like a control centre in the cell which allows some substances to enter and others substances to leave the cell. It also initiates chemical reactions and processes like respiration in the cell cytoplasm.
The main function of the cell membrane is to regulate the movement of substances in and out of the cell. It acts as a barrier that allows essential molecules to enter the cell while keeping harmful substances out. Additionally, cell membranes also help maintain the cell's shape and provide structural support.
The permeability of the cell membrane controls which substances may pass in or out of the cell.
The Nucleus or Nuclear Membrane is a lipid bi-layer that serves as a physical barrier. It encloses all of the genetic material in the cell. The membrane also allows transfer of material from inside the nucleus to the cytoplasm. Lastly, it separates content that way it can send and receive substances, such as mRNA.
Nuclear Membrane
The cell's membrane allows only certain substances to diffuse in and out of the cell.
The cell part that allows only certain substances to diffuse into and out of the cell is called the semi permeable membrane. This allows good substances to enter the cell.
The cell membrane.
The permeability of the cell membrane controls which substances may pass in or out of the cell.
the cell membrane
Cytoplasm holds all the organelles in place.
The process of substances leaving a cell is called exocytosis. During exocytosis, vesicles within the cell fuse with the cell membrane and release their contents out of the cell.
The cell membrane is composed of a phospholipid bilayer that is selectively permeable, allowing only certain substances to pass through. The presence of proteins, such as channels and carriers, also help regulate the movement of specific molecules across the membrane. Additionally, the membrane's fluidity and structure play a role in facilitating or hindering the diffusion of substances.
Most animal cells (except for human red blood cells and some others) have a nucleus. It is like a control centre in the cell which allows some substances to enter and others substances to leave the cell. It also initiates chemical reactions and processes like respiration in the cell cytoplasm.
Cell membranes are selectively permeable, meaning they control what substances can pass through based on size and charge. This is achieved through membrane proteins and channels that facilitate the movement of specific molecules in and out of the cell. Additionally, active transport processes such as pumps and vesicle transport mechanisms also help regulate the movement of substances across the cell membrane.
It is a selectively permeable membrane that allows certain substances in and out, but keeps harmful substances from entering the cell. It could be compared to the security guard at the door of an airport that makes sure that nobody dangerous gets in or out.