Which of the following correctly shows different regulatory mechanisms ranked from fastest to slowest AnswersA -E
Q: When a neurotransmitter-filled vesicle is in the primed position, which t-SNARE connect is critical…
A: Synapses are structures or junctions that facilitate the passing of an electrical or a chemical…
Q: Voltage-gated sodium channels are open and allowing sodium to flow when: O The membrane is at the…
A: When the membrane potential of a particular cell site rapidly increases and decreases, an action…
Q: Dr. Brainy decides to make a new cell that ONLY has one ion channel in its membrane. This channel is…
A: Based on the conditions, let's evaluate the potential outcomes: Membrane potential approaching 0 mV:…
Q: Which of the following would you predict would happen if you limited the amount of ATP to a neuron…
A: We have Na+/K+ ATPase channel that uses ATP to translocate 3 Na+ outside and 2 K+ outside which…
Q: GABA is a neurotransmitter that binds to ligand-gated chloride (Cl-) ion channels, causing Cl- to…
A: GABA is a neurotransmitter that plays an important role in the central nervous system. It is…
Q: Imagine that a neuron has 5X higher sodium outside than inside and 10X higher potassium inside than…
A: The movement of the cell constituents inside and outside of the cell is mediated by selectively…
Q: A neurotransmitter binds to a receptor on a muscle cell and causes sodium channels to open. This is…
A: Facilitated diffusion is a passive transport of ions, which means this process does not need energy…
Q: What effect could the venom have on a voltage-gated potassium channel to produce this result
A: Scorpion is venomous reptile which is found all around the globe with different species but black…
Q: Heurotransmitters and their respective receptors influence the propagation of action potentials. Why…
A: Hormones are defined as the type of chemical messengers that are directly released into the…
Q: Define about ABO System ?
A: The basic principles of inheritance as applicable to all other living organisms are equally…
Q: The toxin of the velvet sea snake prevents the sodium channels from inactivating. Which of the…
A: When Voltage gated Na+ channels open it leads to depolarization of the neuron i.e resting membrane…
Q: The students in Ms. Potter's class are making drawings to represent system models of a mouse. Which…
A: The best describes what they should draw as the boundary of the system is : 3- exterior surfaces of…
Q: "In repolarization, potassium channels close and additional sodium channels open; sodium movement…
A: Repolarization allides to the changes in membrane potential that goes back to a negative value soon…
Q: Explain how a living system with all its complexity and order, does not violate the 2nd Law of…
A: The second law of thermodynamics expresses that the entropy of a shut framework will continuously…
Q: Question is attached
A: A chemical reaction is a reaction which involves a reactant and product. Reactants reacts to form…
Q: In negative feedback systems O the receptor sends a negative signal the stimulus is increased or…
A: Negative feedback loops can be referred to as those physiological processes through which hormonal…
Q: that Causes 18 gates been opened to cause this?
A: Hyperpolarization :It is the movement of a cell membrane potential to a more negative value. When a…
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: n frogs, the segregation of ocular input to the tectum is mediated by eceptors and occurs AMPA;…
A: Like many animals, frogs largely rely on their vision to find their way about and find prey. Their…
Q: In a negative feedback loop, the effector moves the system in the direction as the stimulus.
A: Homeostasis is the maintenance of constant internal conditions in the body despite changes in the…
Q: Wriich of the lollowing thuices correctly ills in the blanks? During repolarization, the sodium ions…
A: The process of generation of action potential is a complex process and it involves three main phases…
Q: the course of evolution whales and sharks optimized their movements by forming a tail fluke (or tail…
A: Those different tail fins are a direct consequence of having evolved from land mammals. The first…
Q: In a negative feedback loop, what happens to a variable when it increases past its normal range? O…
A: The negative feedback loop is used in homeostasis to bring back the variable into a normal value.
Q: Dialing process is the best example of signaling mechanism. It is a mechanism to provide network to…
A: The whole cell signalling process can be compared to the the signal provided by the telephone which…
Q: :Which of the following is an example of Echemical? O a molecule of glucose O water rushing over…
A: Potential energy: energy because of position, it is put away energy which can be utilized to do…
Q: Explain, how and why the cells swell up (or even burst) if their Na/K pumps stop working.
A: A transmembrane ATPase which is responsible for pumping sodium ions out of the cell and bringing…
Q: During depolarization and during repolarization Sodium enters the cell; potassium enters the cell O…
A: We know that The majority of the cells in the body use ions to carry a charge through the cell…
Q: a positive-feedback system is one in which a. a variable is charged in the opposite direction to…
A: Feedback happens when the final result in a pathway or process directs the action of the cycle that…
Q: Discuss the role of the nervous system intemperate regulation
A: Introduction :- Your nervous system is the control centre of your body. It originates in your brain…
Q: Shown attached are the recordings from one cell in the Swimmy CPG circuit. The first recording is…
A: In this discussion, we will analyze the recordings of a neuron in the Swimmy CPG (central pattern…
Q: Which of the following statements about the Na * and K* gradients in neurons is NOT true? a. In a…
A: Neurons are cells that form the nervous system of complex animals. Signals are transmitted across…
Q: Which of the following proteins can be used in optogenetic system? O A. OptoXR, an engineered…
A: Introduction: The optogenetic system is used to control cell activity using light in a specific way.…
Q: Explain what is going on at sites A, B, C, D, F and G in relation to CHARGE (negative, positive,…
A: Action potentials are electrical impulses that neurons use to interact with one another. The…
Q: Which two forces are most responsible for moving ions into and out of your neurons? magnetic…
A: Neurons is the basic functional unit of nervous system. Neurons are comparable to the normal cell in…
Q: Homeostasis, as currently defined, is a self-regulating process by which biological systems maintain…
A: Homeostasis is self regulating process . It maintains mainly the internal body environment in a…
Q: Which of the following is correct about feedback systems? O Positive feedback systems resist change…
A: Homeostasis refers to the process of maintaining internal physiological parameters in a changing…
Q: Which component of a homeostatic control mechanism would the life function "responsiveness" be best…
A: Homeostasis is the mechanism by which the organism is able to maintain its internal body environment…
Q: The toxic substances action violates the mechanism of nerve impulses transmission in the experiment.…
A: Irritability is the characteristic of all the living cells. it is achieved by means of responding to…
Q: Whats the purpose of a research study for the "Consumption of whole eggs promotes greater…
A: Researchers took resistance-trained men and gave them either whole eggs or egg whites each…
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- Answer question 17If there were less substrate than enzyme, then Vmax could never be reached. True or False? Enzymes increase the rate of the forward and reverse reaction proportionally. True or False? The AG of a reaction is related by the Arrhenius equation to the rate constant of a reaction. True or False? Glycogen phosphorylase is phosphorylated and activated by the hormone glucagon. This is an example of transcriptional regulation. True or False? At steady state, the rate of formation of [ES] is equal to the rate of breakdown of [ES). True or False? The Lineweaver-Burk transformation linearizes kinetic data regardless of whether the enzyme follows Michaelis-Menten kinetics. True or False?Which of the following are examples of post- translational modification (PTM)? (select two answers) Genomic DNA is methylated by a DNA methyltransferase, altering the binding of transcription factors. Glycogen phosphorylase becomes active when phosphorylated by glycogen phosphorylase kinase. Glucose is phosphorylated by hexokinase as the first step in glycolysis. Ras is active when bound to GTP, and inactive when bound to GDP. Caspase 3 is activated when cleaved by capsase 9.
- The glycolytic enzyme pyruvațe kinase is activated by dephosphorylation and inactivated by phosphorylation. O Pre-transcriptional control O Transeriptional control O Translational control O Post-translational controlBong Question #1: The diagram below depicts the regulatory regions for two (made-up) genes, which contain cis-regulatory sequences X, Y, and Z and bind to transcriptional regulatory proteins: zelo led diogot bolgate SMARTY – a transcriptional ACTIVATOR protein, which is present in all neuronal cells and binds to cis-regulatory sequence, X1oq & vino 19vewod.152 moldong sai mut tum BRAWNY-a transcriptional ACTIVATOR protein, which is present in all muscle cells and binds to cis-resgulatory sequence, Yolgulum di ko malo na SNARKY - a transcriptional REPRESSOR protein, which is present in peripheral neurons only and binds to cis-regulatory sequence Z 100 bio se i da se lotimo broup gniwollt od 19 bolgate ons zegg or we de base do no me to stir noitesup od went of sistemos seu anoitesup 15wens horle 10oldog woy ni gnius stoted 1910 ni tatayot ovizasovo got no rade od lliw anioq azia oo ingene Aroom or b X y Jeol VELY gan 100 Tonnodige ΤΑΤΑ, 229nibrow dong H .aodto diw atse meldong mov.no o…Below is a model of a signal transduction pathway that results in the transcribing of mRNA: Receptor protein Transcription factor Phosphorylation cascade DNA mRNA What is the best description of what would happen if the phosphorylation cascade resulted in a phosphate being attached to the transcription factor? O mRN would not stop being transcribed from the DNA. O The phosphorylation cascade would continue to release excess phosphates. O mRNA would stop being translated from the DNA. O Receptor proteins would not bind to the signaling hormone.
- Which of the following is NOT a reason cells regulate gene expression at a level other than the transcriptional level? Some proteins are only required in part of the cell and transcriptional control will only regulate the mRNA/protein throughout the cell. The core promoter for many genes is the same, so these genes will always be transcribed in the same cells. Differential gene expression in different cell types requires regulation of gene expression at levels other than transcription. Transcription and translation are realtively slow processes, so cells need to regulate gene expression post-transcriptionally if they require a fast change in expression of a gene. Not all cells are transcriptionally active (meaning they do not transcribe any genes), so these cells need to regulate gene expression post-transcriptionally.At which of these levels isregulation of gene expression most energy-efficient?Describe the advantages and disadvantages of the following mechanisms of regulation: Transcriptional control Translational control Post translational control
- Given the following schematic for a gene and its associated regulatory regions, answer the following questions by placing the correct letter in the provided blanks please put in the correct letter for the questions What region would provide cell type-specific expression of genes? region What site would significantly increase gene expression rates? = region What region or regions of this gene’s coding sequence are expressed as amino acids = region| What is translational repression? Explain why do cells use translational regulation to respond to signal cues like heat shock in the environment ? NUCLEUS CYTOSOL RNA transport translation control protein activity control control RNA transcript mRNA 1 3 MRNA. inactive protein DNA. -protein. transcriptional control RNA nuclear pore processing control nuclear envelopeLysR regulators like llvY repress transcription from their own promoters. This is called a negative feedback loop. Why might negative feedback be a good way to control expression of a transcriptional repressor? This type of negative feedback loop ensures that ilvC transcription will always be repressed when llvY levels are low, and ilvC will be transcribed highly when llvY levels are high. This type of negative feedback regulation ensures that ilvY is never transcribed. Since llvY is a transcriptional repressor, it will slow down cell growth by blocking transcription. So, llvY represses it's own transcription so that no llvY can ever be made, and the cell can grow. This type of negative feedback loop ensures that there is always a moderate amount of llvY. When IlvY levels fall too low, transcription from the promoter will increase since IlvY won't be able to repress it's own promoter. This negative feedback also ensures that IlVY levels don't rise too high - when llvY levels are high,…