Homework Answers
Ans-26- Phosphorylation is catalyzed by kinase enzyme. In the receptor tyrosine kinase signalling, the receptor itself phosphorylated tyrosine residue upon binding of the ligand. So option D (receptor tyrosine kinase) is correct.
Ans-27- The very first step of signal transduction pathway is the binding of a ligand (signal molecule) to its receptor. Binding alters the receptor conformation that initiates a signal transduction pathway.
So option B is correct.
Add Answer to:
Question 26 2.2 p The phosphorylation of specific amino acids is a characteristic of the cell...
D Question 22 2.2 pts In the process of cell signaling, the signaling molecule that is...
D Question 22 2.2 pts In the process of cell signaling, the signaling molecule that is specifically detected by the target cell o is called a signal transducer. o is called a polymer is known as a secondary messenger. is called a ligand. e terminates the signal reception If phosphorylation were inhibited, this would most affect the activity of G-protein-linked receptors. e ligand-gated ion channels. transcription factors e phosphatase enzymes. O receptor tyrosine kinases.
2. The following is a description of a signaling pathway initiated by receptor tyrosine kinases. Ligand → RTK → Sos → Ras → Raf → MEK → ERK → Transcription factor → Cell growth A. (3pts) Which of the...
2. The following is a description of a signaling pathway initiated by receptor tyrosine kinases. Ligand → RTK → Sos → Ras → Raf → MEK → ERK → Transcription factor → Cell growth A. (3pts) Which of these steps indicates the protein is activated after a GTP exchange step? B. (3pts) Which of these proteins can be deactivated by phosphatases? C. (4pts) Describe a mutation that would cause Ras to be permanently "on"? Would this mutation lead to high...
Question 33 (1 point) Cholera is an infections disease that causes extreme diarrhea, what cell to...
Question 33 (1 point) Cholera is an infections disease that causes extreme diarrhea, what cell to cell surface receptor and subsequent confirmation change is associated with this? O G-protein linked receptor O G-protein linked receptor and an ion channel O Enzyme linked receptor and ion channel Enzyme liked receptor Question 36 (1 point) Second messengers are... small molecules that turn GTP into GDP for singal transduction small molecules that propagate a signal after it has been initiated by the signaling...
Drosopholia eye development is an example of cell differentiation directed by signal binding to a receptor...
Drosopholia eye development is an example of cell differentiation directed by signal binding to a receptor tyrosine kinase (RTK). In this pathway, R7 photoreceptor development requires a receptor (SEV, sevenless), which is activated by binding to a plasma membrane bound signal (BOSS, bride-of-sevenless) displayed on the adjacent R8 cell Receptor activation leads to activation of RAS via two proteins, Drk (down- stream of receptor kinases) and Sos (son-of-sevenless). Activated RAS leads to activation of a phosphorylation cascade that activates the...
How is signaling from receptor tyrosine kinases terminated? GTP hydrolysis ATP hydrolysis receptor endocytosis Arrestins Pathway...
How is signaling from receptor tyrosine kinases terminated? GTP hydrolysis ATP hydrolysis receptor endocytosis Arrestins Pathway crosstalk occurs when: signaling pathways use a common intermediate o signaling pathways split to produce multiple outcomes one signaling pathway triggers another signaling pathways produce the same outcome Eicosanoid hormones such as prostaglandins and leukotrienes are responsible for localized immune reactions such as to insect bites and hayfever symptoms. Which of the following best describes this level of cell signaling? Autocrine Endocrine o Holoerine...
QUESTION 1 When cells stimulate other cells at long distances, it is referred to as: paracrine...
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...
Question 29 2.2 pts Which of the following indicates the stages of cell signaling after the...
Question 29 2.2 pts Which of the following indicates the stages of cell signaling after the ligand has been produced? o the paracrine, local, and synaptic stages. signal reception, signal transduction, and cellular response. o signal reception, nucleus disintegration, and new cell generation o the alpha, beta, and gamma stages signal reception, cellular response and cell division
Help with these bio questions please.Thank you 1 Secretory protein leave the cell by b Exoctossthey...
Help with these bio questions please.Thank you
1 Secretory protein leave the cell by b Exoctossthey remain in the cytoplasm c) pinocytosis d) receptor mediated 2 If proteins lack a c) Ras d) Signal-recognition particle b) Sorting signal 3 What purpose does the protein coat serve a) Capture molecules to remain in the cytosol b) Shapes the membrane into a phospholipid bilayer membrane c) Provides extra protection and support to the organelles d) none of these are correct cells response...
Which of the following statement regarding cyclins IS NOT CORRECT? When a cell moves through a...
Which of the following statement regarding cyclins IS NOT
CORRECT?
When a cell moves through a predetermined cell cycle genetic circuit, cyclins (e.g., G1/S-cyclin, S-cyclin, M-cyclin and G1-cyclin) appear and disappear in a cyclical fashion. Which of the following statement regarding cyclins IS NOT CORRECT? cyclins are part of a complex (cyclin-dependent protein kinase complexes, CDKCs) that catalyze the phosphorylation of target proteins. O A O Bcyclins are activated by cell-cycle kinases and deactivated by a phosphatase. cyclins are synthesized...
Last guy got it wrong - Thank you. 2. You discover a signal transduction pathway that...
Last guy got it wrong - Thank you.
2. You discover a signal transduction pathway that regulates actin polymerization. SigC is the ligand, which binds to and activates a receptor tyrosine kinase (RTK). Activation of the RTK leads to the activation of the Ras protein, which then activates the protein kinase PK1 that phosphorylates the RingA protein on S34. When SigC plasma membrane phosphorylated, RingA binds EXTRACELLULAR to the gene regulatory SPACE inactive Ras protein activated Ras protein protein, AP1....
D Question 22 2.2 pts In the process of cell signaling, the signaling molecule that is specifically detected by the target cell o is called a signal transducer. o is called a polymer is known as a secondary messenger. is called a ligand. e terminates the signal reception If phosphorylation were inhibited, this would most affect the activity of G-protein-linked receptors. e ligand-gated ion channels. transcription factors e phosphatase enzymes. O receptor tyrosine kinases.
2. The following is a description of a signaling pathway initiated by receptor tyrosine kinases. Ligand → RTK → Sos → Ras → Raf → MEK → ERK → Transcription factor → Cell growth A. (3pts) Which of these steps indicates the protein is activated after a GTP exchange step? B. (3pts) Which of these proteins can be deactivated by phosphatases? C. (4pts) Describe a mutation that would cause Ras to be permanently "on"? Would this mutation lead to high...
Question 33 (1 point) Cholera is an infections disease that causes extreme diarrhea, what cell to cell surface receptor and subsequent confirmation change is associated with this? O G-protein linked receptor O G-protein linked receptor and an ion channel O Enzyme linked receptor and ion channel Enzyme liked receptor Question 36 (1 point) Second messengers are... small molecules that turn GTP into GDP for singal transduction small molecules that propagate a signal after it has been initiated by the signaling...
Drosopholia eye development is an example of cell differentiation directed by signal binding to a receptor tyrosine kinase (RTK). In this pathway, R7 photoreceptor development requires a receptor (SEV, sevenless), which is activated by binding to a plasma membrane bound signal (BOSS, bride-of-sevenless) displayed on the adjacent R8 cell Receptor activation leads to activation of RAS via two proteins, Drk (down- stream of receptor kinases) and Sos (son-of-sevenless). Activated RAS leads to activation of a phosphorylation cascade that activates the...
How is signaling from receptor tyrosine kinases terminated? GTP hydrolysis ATP hydrolysis receptor endocytosis Arrestins Pathway crosstalk occurs when: signaling pathways use a common intermediate o signaling pathways split to produce multiple outcomes one signaling pathway triggers another signaling pathways produce the same outcome Eicosanoid hormones such as prostaglandins and leukotrienes are responsible for localized immune reactions such as to insect bites and hayfever symptoms. Which of the following best describes this level of cell signaling? Autocrine Endocrine o Holoerine...
Question 29 2.2 pts Which of the following indicates the stages of cell signaling after the ligand has been produced? o the paracrine, local, and synaptic stages. signal reception, signal transduction, and cellular response. o signal reception, nucleus disintegration, and new cell generation o the alpha, beta, and gamma stages signal reception, cellular response and cell division
Help with these bio questions please.Thank you
1 Secretory protein leave the cell by b Exoctossthey remain in the cytoplasm c) pinocytosis d) receptor mediated 2 If proteins lack a c) Ras d) Signal-recognition particle b) Sorting signal 3 What purpose does the protein coat serve a) Capture molecules to remain in the cytosol b) Shapes the membrane into a phospholipid bilayer membrane c) Provides extra protection and support to the organelles d) none of these are correct cells response...
Which of the following statement regarding cyclins IS NOT
CORRECT?
When a cell moves through a predetermined cell cycle genetic circuit, cyclins (e.g., G1/S-cyclin, S-cyclin, M-cyclin and G1-cyclin) appear and disappear in a cyclical fashion. Which of the following statement regarding cyclins IS NOT CORRECT? cyclins are part of a complex (cyclin-dependent protein kinase complexes, CDKCs) that catalyze the phosphorylation of target proteins. O A O Bcyclins are activated by cell-cycle kinases and deactivated by a phosphatase. cyclins are synthesized...
Last guy got it wrong - Thank you.
2. You discover a signal transduction pathway that regulates actin polymerization. SigC is the ligand, which binds to and activates a receptor tyrosine kinase (RTK). Activation of the RTK leads to the activation of the Ras protein, which then activates the protein kinase PK1 that phosphorylates the RingA protein on S34. When SigC plasma membrane phosphorylated, RingA binds EXTRACELLULAR to the gene regulatory SPACE inactive Ras protein activated Ras protein protein, AP1....
Most questions answered within 3 hours.
-
2) You are given the task of finding a representation for a
circle in a drawing...
asked 1 hour ago -
STUDY QUESTION: Does use of diet drug fen-phen
(fenfluramine-phentermine) cause valvular heart disease?
HINT: Valvular heart...
asked 52 minutes ago -
1. An object weighing 40 N rests on a surface. The coefficient
of friction is 0.35....
asked 2 hours ago -
Investor company owns 35% of investee company voting stock and
accounts for the investment under the...
asked 3 hours ago -
The number of major faults on a randomly chosen 1 km stretch of
highway has a...
asked 3 hours ago -
Consider the competitive environment of Starbuck's, Progressive
Insurance, a manufacturing firm with low turnover, or a...
asked 4 hours ago -
3. Gains from trade
Consider two neighbouring island countries called Euphoria and
Contente. They each have...
asked 6 hours ago -
A business executive has the option to invest money in two
plans: Plan A guarantees that...
asked 8 hours ago -
Hello, can someone please help me answer this question?
How much heat is absorbed by a...
asked 8 hours ago -
. A marketing researcher conducted a survey of 25 shoppers
randomly selected at the local mall...
asked 8 hours ago -
Create an comprehensive response to the
following:
Antimicrobial agents work on a multitude of microbes (bacteria,...
asked 8 hours ago -
6.13 LAB: Step counter. Section 6.3.
A pedometer treats walking 2,000 steps as walking 1 mile....
asked 8 hours ago