Endocrine signals are transmitted more slowly than paracrine signals because ___________. a. the ligands are transported through the bloodstream and travel greater distances b. the target and signaling cells are close together c. the ligands are degraded rapidly d. the ligands don't bind to carrier proteins during transport

Q: Epidermal growth factor (EGF) signals through a receptor, tyrosine kinase. EGF signaling promotes…

A: An epidermal growth factor is a protein-coding gene which is responsible for controlling the…

Q: Which of the following receptor signaling pathways require that the growth factor/activator…

A: Signaling molecules also known as ligands are produced by signaling cells and the subsequent binding…

Q: A mutation in HER2 that causes receptor dimerization in the absence of signaling molecules. Would…

A: Answer - B. Increases proliferation HER2 (human epidermal growth factor receptor 2) is a gene it…

Q: Which of the following are methods of cellular signaling?   Select one: a. All the answers are…

A: Cellular signaling is a process of communication or passing form one cell to another by signaling…

Q: 18. (04.01 HC) Biological recognition is important in processes at the molecular, cellular, and…

A: The objective of the question is to understand the role of cell membranes and their components in…

Q: E-cadherin expression is___________ in the ________________cells that are situated around the edges…

A: EMT is the epithelial- mesenchymal transition.  Cells needs cadherins adhesion to other cell.…

Q: _____ is not stimulated by cAMP. A. Phosphofructokinase B. Protein kinase A C. Muscle…

A: cAMP is a  messenger, used for intracellular signaling , such as transferring into cells the effects…

Q: 1.Binding of steroid hormone-receptor complex to DNA ultimately causes: a. Production of 2nd…

A: Answer 1- Binding of steroid hormone-receptor complex to DNA ultimately causes: b. Activation of…

Q: Which of the following exert their cell signaling ability by directly phosphorylating other…

A: Cell signaling is an integral aspect of a sophisticated communication system that affects cellular…

Q: Which of the following classes of oncogenes would likely be druggable with a small molecule (select…

A: Oncogenes are genes that have the potential to cause cancer. They can be found in normal cells and…

Q: The Epithelial-Mesenchymal Transition (EMT) is mediated by which of the following (select all that…

A: EMT or epithelial-mesenchymal transition is a series of events that allows a polarized epithelial…

Q: What are the roles of the following signaling molecules in the glucagon pathway:  a. Ligand b.…

A: ANSWER : a. Ligand: A ligand is a molecule which binds with another certain molecule by forming a…

Q: You have found a plant-derived compound that interferes with microtubule assembly by binding to and…

A: Mitotic inhibitors prevent the tubulin from being assembled and disassembled into microtubule…

Q: The following are components involved in GPCR signaling, except for:

A: Signalling molecules are secreted or expressed on the surface of one cell and bind to receptors…

Q: One advantage chemical signaling has over electrical signaling is thata. reaction to stimuli can…

A: Cell to cell communication is very important for the normal functioning of the body. It helps in the…

Q: The function of a kinase is to ______.     A. stimulate translation of DNand transcription of RNA…

A: ENZYME:- It is defined as a complex biological catalyst i.e produced by a living organism in its…

Q: Paracrine signaling is characterized by ligands that are __________. produced by the cell itself…

A: The process by which a cell receives or sends signals within itself and with the other cells is…

Q: Which of the following is a biogenic amine that is (are) classified as a catecholamine? A…

A: A neuron produces certain chemicals that are called neurotransmitters. Most of the neurotransmitters…

Q: Which of the following is involved in signaling/communication during cellular processes: Select one:…

A: Signaling means cross-talk between molecules to mediate specific physiological processes.  The given…

Q: How do lactoferrins inhibit pathogen growth? Group of answer choices A. Lactoferrins are used by…

A: lactoiferrin is found in the milk or in fact,  in the first milk produced after the baby is born…

Q: Thyroid gland cells are the only cells to use iodine. What must be the reason behind it? A. All…

A: Thyroid gland is a butterfly shaped endocrine gland situated anteriorly at the neck just below…

Q: All known hormones in plants are regulated by proteasomes. Which of the following describes the…

A: Promoter molecules are activator that increases the transcription of the genes while suppressor is…

Q: What happens when an agonist, instead of the endogenous (natural) hormone, binds to the hormone…

A: Hormones are chemical messengers that interface with receptors present on the outside of a cell…

Q: How does the signaling cascade initiated by activation of the Gas protein enter the nucleus to…

A: Signal transduction requires a receptor through which a ligand interacts and transmits its…

Q: which 2 of the would be considered a second messenger?  a. Akt b. AMPK c. Ca2t d. cAMP e. mTOR

A: Second messengers are molecules that relay signals from the cell surface typically initiated by…

Q: a. Cytoplasmic Receptor   b. Transmembrane Receptor   c. Intracellular Receptor   d. Nuclear…

A: Cell signalling is the process which results in changes in cell metabolism.

Q: Which of the following is NOT considered a secondary messenger? A. diacylglycerol B. inositol…

A: After a signal molecule binds to the cell receptor, a sequence of conformational changes occurs, and…

Q: If your sepharose beads are covalently attached to adrenaline hormone, which of the following…

A: Affinity chromatography is a biochemical technique which is used to separate molecules based on the…

Q: For cellular transduction, why is it useful that phosphorylation cascades have a series of protein…

A: Phosphorylation plays an essential role in regulating cellular processes like growth, cell cycle,…

Q: When a signal molecule (hormone) binds at a G protein-coupled receptor, the G protein a. Binds with…

A: Inside cells, many complex signaling pathways take place with the binding of the signaling molecule…