Which of the following describe or exemplify metabolotrophic receptors (select all that apply)?
Select one or more:
a. Protein channels opening and allowing neurotransmitters or ions to flow into the cell
b. Salty taste receptor
c. Signal transduction cascades that can lead to depolarization events
d. Bitter taste receptors
e. Internal g-proteins activated by binding of a stimulus or ligand on the cell’s exterior
The following describe metabotropic receptors-
a- Protein channels opening and allowing neurotransmitters or ions to flow into the cell
d- Bitter taste receptors
e. Internal g-proteins activated by binding of a stimulus or ligand on the cell’s exterior
Which of the following describe or exemplify metabolotrophic receptors (select all that apply)? Select one or...
Signal amplification is an essential step in signal transduction. Which of the following steps of signal transduction amplify the signal (select all that apply)? Group of answer choices a) ligand binding to receptor b) release of GTP bound form of G protein from receptor c) binding of GTP bound form of G protein to target enzyme d) generation of second messenger by activated target enzyme e) activation of gene expression
A. B. C. D. E. F. Thank you receptors induce activation of adenlyate cyclase, which creates the second messenger(s) O G-Protein Coupled, CAMP O Tyrosine Kinase, CAMP OTyrosine Kinase, IP3 and DAG G-Protein Coupled, IP3 and DAG Which of the following is most likely to be activated by a small hydrophobic signal? OIntracellular receptor Receptor Tyrosine Kinase O G-Protein Coupled Receptor Ligand-Gated lon Channel Which of the following types of receptors require dimerization for activation? (Select any/all that apply) OLigand-gated...
Complete each sentence to assess your knowledge of neurotransmitter storage and release at a typical neuronal synapse. Thank you!!! Complete each sentence to assess your knowledge of neurotransmitter storage and release at a typical neuronal synapse, SNARE As action potentials propagate along a myelinated fiber, they jump from one node of Ranvier to the next and for this reason such propagation is called reuptake presynaptic Eventually, the action potential reaches the terminal of the neuron postsynaptic Depolarization in the terminat...
QUESTION 1 When cells stimulate other cells at long distances, it is referred to as: paracrine loops autocrine loops synaptic signaling endocrine signaling 1 points QUESTION 2 What region of a protein binds phosphorylated serines & tyrosines on another protein? SH2 domain ligand cAMP receptor monomers 1 points QUESTION 3 Activation of a serpentine receptor can lead to: cAMP generation GTP-binding of G proteins activation of Protein Kinase A all of the above 1 points QUESTION 4...
Which of the following statements are accurate? Select all that apply Interneurons are responsible for analysis of stimuli and forming a circuit to respond to the stimuli. Interneurons can interact (e.g. stimulate) with muscle cells or glands. The peripheral nervous system is able to carry information to and from the central nervous system. Nerves typically collect sensory information such as light, touch, or blood pressure. Interneurons are a type of sensory neuron. Which of the following statements are accurate? select...
1. In paracrine signaling, the signaling molecules affects only: Target cells close to the cell from which it was secreted a. b. Target cells distant from its site of synthesis in cells of an endocrine organ Both a. and b. с. d. None of these 2. Below are listed the events that occur in cell to cell communication. Signal transduction occurs 1. 2. Plasma membrane receptor binds with a ligand A cellular response is effected 3. 4. Ligand is released...
31. Which statement correctly describes a difference be n ionotropic and metabotropic receptors! alonocropic receptors a tough secondary messenger b. Only oncopic receptors are membrane protein clonotropic receptors are directly linked and metabotropic receptors are indirect linked to lon channels d. Neurotransmitters are only involved with incroc receptors. e longropic receptors act owly, while metabotropic act quiddy w ould explan th 32. In an experiment, the membrane potential of a neuron is hyperpolated -120 mW. When an inhibitory neurotransmitter is...
C. Physiology of Gustation: The sense of taste involves signal transduction of chemicals in food into electrical signals that can be sent to the CNS (Figures 15.5-15.6). 1. Taste sensations: taste relies on the detection of the following five classes of chemicals: and 2. Detection of taste begins when: Taste receptors are classified by the substance to which they detect, with only one type of receptor associated with an individual gustatory cell. 3. Activation of taste receptors. A substance must...
Which of the following could a phosphodiesterase inhibitor lead to? Select all that apply. a. higher levels of cAMP b. longer opening of cyclic nucleotide-gated channels c. prolonged activation of Golf d. prolonged activated of adenylate cyclase e. more phosphorylation of ion channels
Which one of the following statements is false? a. Many growth factor receptors are tyrosine kinases. b. SH2 is an example of a protein domain that has high affinity binding for phosphorylated EGFR. c. Raf initiates a serine/threonine kinase cascade. d. Raf is activated by the kinase activity of RAS. Which one of the following statements is true? a. Retroviruses are a major cause of human cancers. b. Proto-oncogenes are altered forms of normal genes. c. Oncogenic activation of receptor...