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Water, oxygen, co2

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13y ago

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Does a animal call have a cell membrane?

Yes, ever cell has a membrane let it be it is an animal cell or a plant cell. just the difference is that the plant cell has an extra covering called the cell wall. And every organelle in a cell is also covered by a membrane except the nucleus in prokaryotic cells


Why does defusion happen?

To let things through the cell membrane


Why animal cells and plant cells both have a cell surface membrane surrounding the cell?

They both have that to let some molecules to come in and allow some to come out if needed. It is permeable. A animal cell only has a cell membrane because, animals have bone to hold them up. A plant cell has both cell membrane and cell wall. A cell wall is what holds the stem of a plant up. They both have these so they can not allow hurtful viruses or bacteria through. 'I hope this was helpful!


Does the cell membrane let things pass through it?

Yes, the cell membrane is selectively permeable, meaning it allows certain substances to pass through while blocking others. This is essential for controlling the movement of molecules in and out of the cell to maintain internal balance.


What is the semipermeable membrane?

The cytoplasm of a cell is surrounded by a cell membrane or plasma membrane. The membrane is said to be 'semi-permeable', in that it can either let a substance pass through freely, pass through to a limited extent or not pass through at all.the membrane is somewhat effective at letting fluids through


What structures allow large important molecules to pass through the cell membrane?

A cell membrane is in every plant and animal and it lets in water, nutrients, and food to the cell. The membrane MUST be permeable because then it wouldn't of let the in water, nutrients, and food into the cell. If the membrane was stiff, the molecules of water, nutrients, and food would not be able to fit into the cell.


What does the cell membrane let out of the cell?

Cell waste


Why does a plant cell have a cell membrane?

All cells need to be able to let food, water and unneeded waste to get in and out of the cells, that's where the cell membrane comes in; it acts like a filter letting things in and out. In the animal cell it also has the job of protecting and keeping the cell in place, but in a plant cell the cell wall is given that job.


What is the process by which a substance is released from the cell through a vesicles that fuses with the membrane to let the substance out?

Exocytosis


Why is the plasma membrane called the selectively permeable membrane?

Let trans-membrane transport of molecules be either passive, or facilitated, or active: the plasma [bi-lipid layer] membrane has the power to exclude molecules It selects from passage through the Membrane into the Cell's interior.


What is the procces by which a substance is released from the cell through a vesicle that transports the substance to the cell surface in then fuses with the membrane to let the substance out?

exocytosis


What is the role of the cell membrane in moving substance in and out of the cell?

The cell membrane is considered to be semipermeable. This means that it will let some substances through (either in or out), but others it won't. The cell membrane is considered to be 3 layers (lipid, protein, lipid) Certain proteins will help substances into the cell, but some they won't let in. Generally, smaller molecules (oxygen, water, CO2, etc.) will pass through easier than larger molecules (glucose, other sugars). Basically, the cell membrane determines what substances are allowed to pass it/out of the cell.