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Certain steroid hormones, cholesterol for example, can pass through the plasma membrane of the cell. Ions cannot pass through the plasma membrane but requires a channel protein. All cells in our body has phospholipid bilayer plasma membrane.

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15y ago

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The compound that allows materials to move through cell membranes by osmosis is?

The compound that allows materials to move through cell membranes by osmosis is water. Water moves freely through cell membranes to maintain osmotic balance within the cell.


Does C02 move quickly across the cell membrane?

Yes, carbon dioxide tends to be freely permeable across cell membranes and can transit through rapidly.


What kind of substance cannot pass through the cell membrane?

lipids, and ribosomeslipids


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water


What do cell membranes allow?

Cell membranes allow the regulation of what enters and exits the cell, maintaining cell homeostasis. They also provide structural support and separate the cell's internal environment from the external environment. Additionally, cell membranes facilitate cell communication and recognition.


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Proteins do not pass through cell membranes freely because they are large molecules that cannot easily fit through the membrane's lipid bilayer. Instead, proteins are typically transported into or out of cells through specific channels or transport proteins in a process called facilitated diffusion or active transport.


What is cell permeable?

Cell permeable refers to a substance or molecule that is able to pass through the cell membrane and enter a cell. This ability allows the substance to interact with the cell's interior and affect its function.


What is the term for living substance that has pores that allows water to pass through?

Biological membrane, cell membrane, fetal membranes: amnion, chorion,


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If the substance is small and its nonpolar then ill be able to pass. For example O2 and CO2


What types of substances pass easily through cell membranes?

If the substance is small and its nonpolar then ill be able to pass. For example O2 and CO2


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Passage of water through cell membranes?

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