When signals bind to the protein receptors,     it depends if the receptor is found on the nuclear or cell membrane.   genes are turned on or off.   gates open up and then there is a cellular response, such as an action potential.   the receptor changes its shape in order to bind the signal and to function

Q: The step(s) involved in cell signaling are: O Signaling cell synthesizes and secretes a signaling…

A: Introduction As multicellular organisms are made up of a lot of cells, there must be coordination…

Q: Which of the following signaling pathways use conventional molecular activation cascades (signaling…

A: Signaling pathways are a series of chemical reactions within a cell that occur in response to a…

Q: Briefly describe how an enzyme-linked receptor carries the signal / information further into the…

A: Enzyme-linked receptors are cell-surface receptors with intracellular spaces that are related with…

Q: The following figure diagrams a G protein in action. Which step in this signalling pathway…

A: In the very first step, step 1 that represents in the reception in this signalling the  pathway. G…

Q: A cell within organ A expresses a protein that is secreted from the cell and travels through the…

A: Cell signalling or cell communication is an ability of a cell to receive, transmit and response…

Q: Cell signaling pathway involved:  Signal mechanism (What is the ligand?)  Type of receptor Basics of…

A: 1. The ligand (called epidermal development factor, or EGF) ties to the receptor (called EGFR).…

Q: What is the specific cause of hypertension (the communication breakdown at the molecular level):…

A: Hypertension, commonly known as high blood pressure, is a medical condition characterized by…

Q: Which of the following steps occurs first in cell to cell communication? O A membrane protein…

A: Cell communication is essential for maintaining cellular homeostasis, balancing the internal…

Q: Describe how a signal cascade may be terminated and explain why it is important to terminate…

A: The process through which cells interact with the outside world, evaluate stimuli, and respond to…

Q: What consist of sensors that monitora particular cellular event, a signaling pathway,

A: Cell surface sensors  are the are powerful device that help in  clarification of cell functions…

Q: DHP-Ryanodine receptors are: O Mechanically-gated O Voltage-gated O Always open O Ligand-gated…

A: Receptors-these are proteins present on the surface of cells that bind to ligands to cause responses…

Q: A G-protein is active when: OIt is phosphorylated by protein kinase O Ca2+ is bound to it OGTP is…

A: G proteins are a group of proteins that operate as molecular switching devices within the cells,…

Q: Which of the following occurs once the lipid-soluble hormone diffuses across the plasma membrane…

A: Lipid-soluble hormones are hormones that can easily diffuse across cell membranes because they are…

Q: The lipid-soluble thyroxine hormone binds a nuclear receptor that is also a transcription factor.…

A: The cell has many ways to control the activities of specific genes and proteins according to its…

Q: Write a step-by-step description of a specific signal transduction pathway.

A: *signals are the chemicals can found in the extracellular fluid in body . *If these chemicals can…

Q: What is a signal sequence, and what is it recognized by? In what cellular process do signal…

A: Signal peptide The N-terminus among most newly produced proteins that are headed for the secretory…

Q: Which of the following could result in the continuous activation of a cell signalling pathway? A…

A: The correct option is: A mutation resulting in a ligand gated ion channel being unable to open.…

Q: When protein membrane receptors are activated, what usually happens? The receptors open and close in…

A: Question - When protein membrane receptors are activated, what usually happens?  The receptors open…

Q: Choose the best term which describe the following statement: antagonist binds to the binding site of…

A: Every cell have a range of receptors in their cell membrane. These receptors make the cells…

Q: Name the steps that occur when a signal binds to a receptor on a responding cell.

A: The cell signaling cascade gets activated by the binding of the ligand on the surface of the…

Q: Calcium and Chlorine are an important part of your diet. Describe the processes they participate in.…

A: Signal transduction also known as cell signaling is a pathway which involves the transmission of…

Q: Molecule X is a soluble protein that is secreted in response to extracellular signal Y. Which…

A: Cell signaling is referred as Communication between cells .All cells receive and responds to signals…

Q: Which of the following is the most accurate process? Activation of G protein → change in activity of…

A: G-protein-coupled receptors (GPCRs) are the most numerous and varied class of membrane receptors…

Q: Some signal molecules can bind to extracellular proteins that directly bind DNA and regulate gene…

A: The answer for the above question is true Some signal molecules can bind to the extracellular…

Q: E. coli cells use a two-component system to sense nitrate in the environment. What would happen if…

A: Bacteria‘s are prokaryotic unicellular organisms. Bacterial have incipient nucleus. E.coli is a gram…

Q: Choose high or low When the ion binding sites pumps are open to the inside of the cell the pump has…

A: The sodium potassium pump transports three sodium ions out of the cell when it opens inside the…

Q: List the ions that contribute to electrical signaling in neurons and what side of the neuron their…

A: Nerve cells also called neuron communicate by generating electric signal ans also through the…

Q: Gap junctions in animal cells permit: Adjacent cells to adhere strongly to each other  Adjacent…

A: Gap junctions between the cells are formed by the protein molecules that pass through the plasma…

Q: What is the difference between a protein kinase and a secondmessenger? Can both operate in the same…

A: Signal transduction, also called cell signaling, is the process by which molecular signals are…

Q: ich of these amino acids would be found in the extracellular part of a receptor? Group of answer…

A: Amino acids Proteins are the polymers of nitrogenous compounds called amino acids. Each amino acid…

Q: Describe how water-soluble ligands transmit a signal into a cell.

A: A ligand is a molecule that attaches to another molecule and, in some situations, sends a signal as…

Q: How is the response to a signal regulated? Why is it often specific? Expain step by step in simple…

A: The signal transduction pathway includes signaling molecules that bind to their receptors.

Q: Match the protein on the left with the signal sequence(s) on the right that it needs to be able to…

A: The biological process by which proteins are delivered to their appropriate locations inside or…

Q: Why are the fingers and toes always at the distal end of the limb? The answers may come from a model…

A: The human body is comprised of a distinct body plan which exhibits a mirror symmetry called…

Q: Why do we need to identify and determine the function of every single molecule involved in cell…

A: Cell signalling is the signalling events in cell that involves series of molecules which carry…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.