That would be the "guard cells". The stoma is an opening on the underside of many leaves and each stoma is bordered by a pair of guard cells that open and close the pore to allow for "transpiration" (the passage of water in either gaseous or liquid form into or out of the leaf). In hot, dry weather, the guard cells close to prevent water loss. In humid weather, the guard cells allow the pore to open and water can enter.
I am a barrier that surrounds a cell, controlling what goes in and out. I am made up of lipids and proteins, keeping the cell's contents secure. What am I?
Cell membranes act as a barrier, controlling the movement of substances in and out of the cell. They help maintain cell shape and provide support. Additionally, cell membranes are important for cell communication and recognition.
It surround the animal cell and keeps it together. It controls the substances passing into and out of the cell.a little more simple form- protects the cell and regulates what goes in and out of the cell. just for all you noobs out there
The cell membrane acts as a protective barrier that surrounds the cell, controlling what enters and exits the cell. It is composed of a lipid bilayer with embedded proteins that help in cell recognition and communication. The cell membrane also plays a role in maintaining cell shape and structure.
A cell can be compared to a hotel where the nucleus is like the hotel manager, controlling activities and storing information. The cytoplasm is similar to the common areas where guests move about and interact. The mitochondria are like the power generators providing energy, and the cell membrane acts as the hotel security, regulating what goes in and out.
The cell membrane acts like a gatekeeper, controlling what goes in and out of the cell. It also helps the cell maintain its shape and structure. Think of it as the cell's protector, keeping harmful substances out while allowing helpful ones in.
The cell wall decides what goes in and out of a cell
cell wall
I am a barrier that surrounds a cell, controlling what goes in and out. I am made up of lipids and proteins, keeping the cell's contents secure. What am I?
Cell membranes act as a barrier, controlling the movement of substances in and out of the cell. They help maintain cell shape and provide support. Additionally, cell membranes are important for cell communication and recognition.
It surround the animal cell and keeps it together. It controls the substances passing into and out of the cell.a little more simple form- protects the cell and regulates what goes in and out of the cell. just for all you noobs out there
The official definition for the word gatekeeper is "an attendant at a gate who is employed to control who goes through it."
The cell membrane is like a gatekeeper that controls what enters and leaves the cell, similar to a security system. It is flexible and selectively permeable, regulating the passage of molecules in and out of the cell to maintain homeostasis. Additionally, the cell membrane is made up of a phospholipid bilayer with embedded proteins, forming a barrier that separates the internal environment of the cell from the external environment.
A semi-permeable membrane. It could be compared to dialysis tubing.
the nucleus is a dark roundish structure found in the cytoplasm. it controls the cell and regulates everything that goes on inside....
The iris, which is the colored part of the eye, regulates the amount of light that goes into the eye by controlling the size of the pupil. The muscles in the iris can expand or contract the pupil in response to changes in light intensity.
The official definition for the word gatekeeper is "an attendant at a gate who is employed to control who goes through it."