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What is the job a a receptor molecule?
A receptor molecule is a molecule that receives information from outside the cell. They are embedded in either the plasma membrane or cytoplasm of a cell. A specific molecule on the surface or inside of a cell with a characteristic chemical and physical structure. Many neurotransmitters and hormones exert their effects by binding to receptors on cells.
What is a cell that produces a signal molecule?
A cell that produces a signal molecule is known as a signaling cell or secreting cell. These cells release signaling molecules, such as hormones or neurotransmitters, which can travel to target cells to initiate a response.
When a receptor protein in a cell membrane acts as a enzyme the receptor protein does what?
When a receptor protein acts as an enzyme, the receptor protein activates a second messenger that acts as a signal molecule within the cell. Resources: HOLT Biology Textbook - 9th grade edition Chapter 4, Cells and Their Environment.
What molecule is responsible for Carrying gentic information from the nucleus of the cell into the cytoplasm?
mRNA
What amplifies communication from a signal molecule?
Receptor proteins on the cell membrane or inside the cell amplify the signal from a signal molecule by initiating a cascade of intracellular events, leading to a cellular response. This amplification allows the cell to respond effectively to low concentrations of the signal molecule.
What binds to a signal molecule enabling the cell to respond to the signal molecule?
A receptor protein on the cell membrane binds to the signal molecule, initiating a series of intracellular events that lead to a cellular response. The binding of the signal molecule to the receptor triggers a signaling cascade that ultimately activates specific cellular pathways.
Is the nucleus found in the cytoplasm?
Yes, all organelles, including the nucleus, of a eukaryotic cell are contained within the cell's cytoplasm. However, the nucleus also contains its own cytoplasm, known as the nucleoplasm, which is different in composition from the cellular cytoplasm.
What does cytoplasm do and what on earth is it?
Cytoplasm offers support to the cell. It allows the cell to take up 3-dimensional space and the cell's many organelles to "float" freely throughout. Also acts as a medium for transport inside the cell.
A part of a cell the sends messages from the nucleus to the cytoplasm is?
The part of a cell that sends messages from the nucleus to the cytoplasm is the endoplasmic reticulum. It acts as a transportation system within the cell, facilitating the movement of proteins and other molecules between the nucleus and cytoplasm.
How is cytoplasm and nucleus different?
Cytoplasm is a gel-like substance that is inside the cell, it acts as a membrane, so to speak, while a nucleus is the "brain" of the cell. It stores all the information such as DNA.
When a signal molecule such as a growth hormone binds to a receptor protein in the plasma membrane it stays on the outside of the cell. How might the inside of the cell know that the signal has bound?
When a signal molecule binds to a receptor protein on the cell membrane, it triggers a cascade of signaling events inside the cell through intracellular signaling molecules like second messengers. These second messengers relay the signal from the receptor at the cell membrane to the cell's interior, which initiates a response by activating various cellular processes. This signal transduction pathway enables the inside of the cell to detect and respond to the binding of the signal molecule at the membrane.
What are the three main parts of a bacterial cell what does it do those parts do?
The three main parts of a bacterial cell are the cell membrane, the cytoplasm, and the genetic material (DNA). The cell membrane acts as a protective barrier, controlling the movement of substances in and out of the cell. The cytoplasm is a gel-like substance that houses various cellular components and facilitates metabolic processes. The genetic material, usually in the form of a single circular DNA molecule, carries the instructions for the cell's functions and reproduction.
