0
What is the characteristic of a cell membrane that controls which substances that can either enter and exit the cell?
Selective permeable
What else can I help you with?
What Controls what moves in and out of the cell?
Cell membrane
What structure controls the passage of substances into and out of the cell?
cell membrane
What organelle moves substances across the cell in one direction?
The plasma membrane surrounding animal cells is where the exchange of substances inside and outside of cells takes place. Some substances need to move from the extracellular fluid outside cells to the inside of the cell, and some substances need to move from the inside of the cell to the extracellular fluid.Some of the proteins that are stuck in the plasma membrane help to form openings (channels) in the membrane. Through these channels, some substances such as hormones or ions are allowed to pass through. They either are "recognized" by a receptor (a protein molecule) within the cell membrane, or they attach to a carrier molecule, which is allowed through the channels. Because the plasma membrane is choosy about what substances can pass through it, it is said to be selectively permeable.
Which cell structure or organelle is responsible for regulating movement into and out of a cell?
The cell membrane, also known as the plasma membrane, is responsible for regulating the movement of substances into and out of the cell. It acts as a selective barrier, allowing some molecules to pass through while blocking others.
What is an analogy for plasma membrane function?
How about a fence around a yard? It does the same thing as a plasma membrane, it keeps the things that are supposed to stay in the yard, in the yard. And, it keeps the things that are outside the yard from getting into the yard. Every once in a while it lets a few select things either go in or out.
What Controls what moves in and out of the cell?
Cell membrane
What structure controls the passage of substances into and out of the cell?
cell membrane
What drives the diffusion of substances across a membrane?
The diffusion of substances across a membrane is driven by the concentration gradient, which is the difference in concentration of a substance on either side of the membrane. Substances naturally move from areas of high concentration to areas of low concentration in order to reach equilibrium.
When there are different amount of substances on either side of cell membrane a gradient results?
osmosis
When there are different amounts of a substance on either side of the cell membrane is a what gradient results?
When there are different amounts of a substance on either side of the cell membrane the gradient result is called the concentration gradient. The permeability of the cell membrane will determine which substances can easily pass through the cell causing a change to the concentration gradient.
What organelle moves substances across the cell in one direction?
The plasma membrane surrounding animal cells is where the exchange of substances inside and outside of cells takes place. Some substances need to move from the extracellular fluid outside cells to the inside of the cell, and some substances need to move from the inside of the cell to the extracellular fluid.Some of the proteins that are stuck in the plasma membrane help to form openings (channels) in the membrane. Through these channels, some substances such as hormones or ions are allowed to pass through. They either are "recognized" by a receptor (a protein molecule) within the cell membrane, or they attach to a carrier molecule, which is allowed through the channels. Because the plasma membrane is choosy about what substances can pass through it, it is said to be selectively permeable.
What is a characteristic of all chemical changes?
A resulting new product with different properties, either physical, chemical or both. A chemical change can only be reversed by anoither chemical change.
What do the membrane proteins do?
They do several things, depending on what they are designed for. The plasma membrane is made up of proteins which are semi-permeable to the outside and hold the cytoplasm within the cell and help to either prevent or allow diffusion of various substances into or out of the cell. They may also form receptor sites along the membrane for the attachment of enzymes which facilitate diffusion of certain substances.
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.
What cell membrane allows you to move in and out of a cell?
its is a permeable membrane which allows osmosis and diffusion of small molecules such as glucose, salts and mineral ions. In an animal cell, it cannot hold the cell turgid like plant cells can, and so it bursts when too much water has entered it. This is osmotic shock
Substances are either elements or mixture?
Substances are Either an element or a mixture
What is the major characteristic that classifies a cell as a prokaryotic or eukaryote?
The presence or absence of a nucleus is the major characteristic that classifies a cell as either prokaryotic (lacking a nucleus) or eukaryotic (containing a nucleus). Eukaryotic cells also typically have membrane-bound organelles, while prokaryotic cells do not.
