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Two functions of cell wall in plant cells?
The cell wall provides structural support and protection for plant cells, helping them maintain their shape and resist mechanical stress. It also regulates the movement of substances into and out of the cell, serving as a barrier that helps control the internal environment of the cell.
A ligand produces a response in a cell if it finds the right kind of?
receptor. When a ligand binds to its receptor on the cell surface or within the cell, it triggers a specific biological response or signaling pathway. The specificity of this interaction between ligand and receptor is critical in determining the cellular response.
What is the different between cell division and budding?
For budding, the parent cell stays but for cell division, the parent is split into two.
A storage compartment of the cell is the?
A storage compartment of the cell is the vacuole. Vacuoles are membrane-bound organelles that store various molecules and ions within the cell. They also help maintain turgor pressure and regulate the cell's internal environment.
What do cyclins regulate?
Cyclins regulate the progression of the cell cycle by binding to and activating cyclin-dependent kinases (CDKs). This interaction controls the timing of key events such as DNA replication and cell division. Cyclin levels fluctuate throughout the cell cycle to ensure its proper regulation.
What is the protective outer covering of all cells that regulates the interaction between the cell and the environment?
It is a cell wall that surrounds the cell outside its cell membrane
What regulates interactions between the cell and it's environment?
cell membrane
What regulates a passage of materials between the cell and its environment?
cell membrane aka plasma membrane
What is the fluid link between the external and internal environment?
The fluid link between the external and internal environment is the plasma membrane of cells. It acts as a selectively permeable barrier that regulates the passage of substances in and out of the cell, maintaining the cell's internal environment while interacting with the external environment.
Barrier between the inside of a cell and it's enviorment?
The cell membrane acts as a barrier between a cell and its environment. This is composed of a phospholipid bilayer. The hydrophilic phosphate heads face outside and the hydrophobic lipid tails point towards each other in the centre of the membrane.
What structure controls a cell's interaction with the outside environment?
plasma membrane
What is regulates what enters and exits the cell and provides protection to cell organelles?
The cell membrane regulates what enters and exits the cell by controlling the passage of molecules. It also provides protection to cell organelles by surrounding them and maintaining their internal environment.
What part in cell works regulates flow of materials into and out of cells?
The cell membrane, also known as the plasma membrane, regulates the flow of materials into and out of cells. It is selectively permeable, allowing certain molecules to pass through while blocking others, thus controlling the exchange of substances between the cell and its environment.
What provides a boundary between the internal and external environment of all cells?
The cell membrane, also known as the plasma membrane, provides a boundary between the internal and external environment of all cells. It is a semi-permeable barrier that regulates the passage of substances in and out of the cell, allowing for the maintenance of cellular homeostasis.
Do prokaryotic cells have cell membranes?
Yes, prokaryotic cells have cell membranes. The cell membrane surrounds the entire cell and separates its internal environment from the external environment. It regulates the passage of substances in and out of the cell.
What is the part of a cell where charges enter and exit?
The cell membrane is the part of a cell where charges (ions) enter and exits. It regulates the movement of ions in and out of the cell, maintaining the cell's internal environment and allowing for communication with the external environment.
Do tumor cells have cell walls or a membrane?
Tumor cells, like all animal cells, have a cell membrane but do not possess a cell wall. The cell membrane is a phospholipid bilayer that regulates the movement of substances in and out of the cell and plays a role in cell signaling and interaction with the environment. In contrast, plant cells and some prokaryotic cells have rigid cell walls that provide structural support, which is not the case for tumor cells.
