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Receptor proteins
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Describe the functions of two types of cell membrane proteins?
cell-surface marker: identifies cell type receptor protein: recognizes and binds to substances outside the cell enzyme: assists chemical reactions inside the cell transport protein: helps substances move across the cell membrane source of information: "Biology principles and explorations" by Holt, Rinehart and Winston
What allows a cell to stockpile substances in far greater concentration that they occur outside the cell?
Active transport allows a cell to stockpile substances in far greater concentration that they occur outside the cell.
What part of the bacterium allows it to recognize different substances in the outside environment?
cell membrane
Substances produced in a cell and exported outside of the cell would pass through the?
The endoplasmic reticulum and Golgi apparatus.
What happens when the concentration of dissolved substances is greater outside the cell than inside?
Particles always move from an area of high concentration to an area of low concentration. Therefore, if the concentration of dissolved substances is greater outside the cell, they will travel into the cell until there is an equal concentration of the substance on both sides of the cell wall.
Recognizes and binds to substances outside of the cell?
Receptor proteins.
A protein on the cell membrane that recognizes and binds to specific substances is called a?
Enzyme
What recognizes a hormone's chemical structure?
A target cell is a cell in the body that recognizes a hormone's chemical structure. It is a cell to which a hormone binds chemically.
Describe the functions of two types of cell membrane proteins?
cell-surface marker: identifies cell type receptor protein: recognizes and binds to substances outside the cell enzyme: assists chemical reactions inside the cell transport protein: helps substances move across the cell membrane source of information: "Biology principles and explorations" by Holt, Rinehart and Winston
What recognize a hormone's chemical structure?
A target cell is a cell in the body that recognizes a hormone's chemical structure. It is a cell to which a hormone binds chemically.
What must occur for a message to be sent from outside of the cell to the inside of a cell?
A signaling molecule binds with a membrane protein
What must occur for a message to be sent from the outside of the cell to the inside of cell?
A signaling molecule binds with a membrane protein
What allows a cell to stockpile substances in far greater concentrations than they occur outside a cell?
Active transport allows a cell to stockpile substances in far greater concentration that they occur outside the cell.
What allows a cell to stockpile substances in far greater concentration that they occur outside the cell?
Active transport allows a cell to stockpile substances in far greater concentration that they occur outside the cell.
What cell organelle packages cellular Substances for transport outside of the cell?
lysosomes
What recognizes a hormone's chemical structure in the endocrine system?
Hormone receptors on cell membranes recognize a hormone's chemical structure in the endocrine system. When the hormone binds to the receptor, a cell changes its behavior.
The cell substances located outside the nucleus compose the?
Compose the what?
