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Diffusion is the general term.

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12y ago

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What is it called when large particles need to use energy to pass through cell membranes?

Active Diffusion


What must digested food particles be able to do?

cross our cell membranes


What statements tells how facilitated diffusion differ from simple diffusion?

Particles move through cell membranes w/out the use of energy by cells.


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.


Do cell membranes make nutrients for cells?

Cell membranes do not make nutrients for cells. They are primarily responsible for controlling the entry and exit of substances into and out of the cell, as well as maintaining the cell's internal environment. Nutrients are typically obtained from the external environment through processes such as diffusion or active transport.


Passage of water through cell membranes?

Osmosis


Is the cell membrane permitable to everything?

Not everything, no. It depends on the cell, some cell membranes are permeable to water (called osmosis) but not smaller particles like proteins. Whereas, some are permeable to proteins and other small particles but not to larger particles.


Can large hydrophobic molecules cross cell membranes?

Yes, large hydrophobic molecules can cross cell membranes through passive diffusion.


How can polar molecules pass through cell membranes?

Through facilitated diffusion


Why Proteins do not pass through cell membranes?

Hydrophilic proteins.


Can all particles move across the cell membrane?

no, membranes are selectively permeable, letting somethings in and not others


What is large particles that may need to use energy to pass through cell membranes called?

Large particles that require energy to pass through cell membranes are called active transport. This process involves the movement of molecules or ions against their concentration gradient with the help of specialized proteins called pumps. Examples include the sodium-potassium pump and endocytosis.