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What are the membranes of what have tiny pores that allow the passage of water molecules?
Wiki User
∙ 14y ago
Plant leaves. The pores are called stomata.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoLenticells
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Is this true some membranes have proteins with channels or pores that allow for passage of hydrophilic substances?
yes it's true.
What is a nuclear pores function in a cell?
Nuclear pores allow molecules to move through the nuclear envelope.
State one reason why some molecules can pass through a certain membranebut other molecules can not?
Molecules pass through pores in membranes. If a molecule is larger than the pores or it sticks to other molecules of its kind to form a thick goo, it won't go through.
What is selectively permeable materials?
Selective permeable materials refer to substances that allow certain molecules or ions to pass through while preventing others from doing so. This property is due to their structure and composition, which includes channels, pores, or specific binding sites that only accommodate certain molecules or ions based on size, charge, or other characteristics. Examples of selectively permeable materials include cell membranes, which regulate the passage of molecules in and out of cells, and semi-permeable membranes used in filtration processes.
What type of molecules need more help to get through the membrane and What is help them?
Large or polar molecules typically need more help to get through the membrane. They rely on specialized transport proteins such as channels or carriers to facilitate their passage. These transport proteins create pores or binding sites that allow the molecules to cross the membrane.
Is this true some membranes have proteins with channels or pores that allow for passage of hydrophilic substances?
yes it's true.
What allow molecules in and out of the nuclear?
Nuclear pores allow molecules in and out
What is a nuclear pores function in a cell?
Nuclear pores allow molecules to move through the nuclear envelope.
State one reason why some molecules can pass through a certain membranebut other molecules can not?
Molecules pass through pores in membranes. If a molecule is larger than the pores or it sticks to other molecules of its kind to form a thick goo, it won't go through.
Fenestrated capillaries have?
Pores (fenestrae) through the cells that allows the passage of large molecules such as protiens.
What is selectively permeable materials?
Selective permeable materials refer to substances that allow certain molecules or ions to pass through while preventing others from doing so. This property is due to their structure and composition, which includes channels, pores, or specific binding sites that only accommodate certain molecules or ions based on size, charge, or other characteristics. Examples of selectively permeable materials include cell membranes, which regulate the passage of molecules in and out of cells, and semi-permeable membranes used in filtration processes.
What cell organelle has pores that allow certain molecules to leave and enter it?
Cell membrane
What is the function of Nuclear in a cell?
Nuclear pores allow molecules to move through the nuclear envelope.
Which organelle in a cell allows for the passage of proteins?
Nuclear Pores, Openings in the nuclear membrane allow the passing of proteins.
What type of molecules need more help to get through the membrane and What is help them?
Large or polar molecules typically need more help to get through the membrane. They rely on specialized transport proteins such as channels or carriers to facilitate their passage. These transport proteins create pores or binding sites that allow the molecules to cross the membrane.
Can all molecules diffuse through all cell membranes?
No, there are specific cell membranes that allow only certain molecules to pass through. Some stay open and others must be opened ( like a gate ).
What is the membrane around the nucleus?
The nucleus is surrounded by a nuclear envelope composed of two membranes. The nuclear envelope is dotted with thousands of nuclear pores, which allow material to move into and out of the nucleus. Like messages, instructions, and blueprints moving in and out of a main office, a steady stream of proteins, RNA, and other molecules move through the nuclear pores to and from the rest of the cell. --Biology textbook
