Homework Answers
D)Toll like receptor bind to cytokine signal from immune cells .Toll like receptor (TLR) recognise pathogen and generate immediate immune response.Induce cytokines which destroy or limit invading pathogens.TLRs are expressed in dendritic cells,B cells,mast cells and some other non immune cells ,cells lining of mucosal surface ( eg : intestinal epithelial cells).
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Question 17 1 pts Toll-like receptors bind to: One specific epitope of an antigenic molecule O...
11. When an individual receives antibodies that were produced by another person, or animal, providing short...
11. When an individual receives antibodies that were produced by another person, or animal, providing short lived or temporary immunity, that is referred ass: a. active immunity b. humoral immunity c. immunosuppression d. passive acquired immunity e. immunocompetence A method to artificially induce an immune response to an infectious disease is: a. immunity 12. b. resistance c. antitoxin d. vaccination e. conjugation 13. Which is not a characteristic of the inflammatory response? a. delivery of additional effector molecules to the...
are these answers correct ? 1 pts Question 1 Bacteria enters the body through a small...
are these answers correct ?
1 pts Question 1 Bacteria enters the body through a small cut in the skin. This will result in stimulating all of the processes listed below, but at different stages of the immune response. Which of the following would occur FIRST? stimulate white blood cells to secrete interleukin (IL-1) make memory T cells stimulate the classical complement pathway O produce gamma interferon Question 2 Select the PAMPS from the list below. Select ALL that apply....
1. Cleavage products of two different complement factors act similarly to recruit and activate cells. What...
1. Cleavage products of two different complement factors act similarly to recruit and activate cells. What is one of these cleavage products? a. C1 b. C2 c. C3a d. C5b e. None of the above Question 2 One of the stimuli for overall complement activation is generated when one of the complement factors undergoes a spontaneous fragmentation. This spontaneous breakdown is enhanced under what circumstance? a. In the presence of bacteria b. Early in the morning c. After a meal...
please answer all 4 questions Question 11 3 pts A B-cell may be activated by: O...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Olfaction occurs when volatile compounds bind to specific odorant receptors. In mammals, each olfactory receptor neuron...
Olfaction occurs when volatile compounds bind to specific
odorant receptors. In mammals, each olfactory receptor neuron in
the olfactory nasal epithelium expresses a single type of odorant
receptor. These odorant receptors constitute a large multigene
family (>1000 members) of related proteins. Binding of odorant
induces a signaling cascade that is mediated via a G protein,
Gaolf. Recent studies suggest that there are a small
number of olfactory sensory neurons in the nasal epithelium that
express members of the trace-amine associated...
1 pts DI Question 6 What region of this molecule shown would bind to mRNA during...
1 pts DI Question 6 What region of this molecule shown would bind to mRNA during translation? 3' A-OH 5' A Cacceptor stem G C G- U TuC loop D-loop C U GACAC m'A GGAGAGm m' G C-G A-U variable loop Anticodon loop Cm U A Gm A A The 5' end The anticodon loop The 3 end The variable loop The acceptor stem D Question 7 1 pts What is synthesized during transcription? O a strand of tRNA O...
Could I get all the answers please,, thank you,, Question 35 (2 points) Which cell type...
Could I get all the answers please,, thank you,, Question 35 (2 points) Which cell type is capable of producing antibodies? Question 35 options: A) B cells B) T cells C) macrophages D) neutrophils E) both A and B Question 36 (2 points) This antibody is pentameric in structure and is the better at stimulating complement than other antibody classes (can form a staple conformation): Question 36 options: A) IgM B) IgE C) IgD D) IgA E) IgG Question 37...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
please answer all 6 questions Question 27 3 pts TRBP is a protein important for the...
please answer all 6 questions
Question 27 3 pts TRBP is a protein important for the formation of the RISC complex. Which of the following would you expect in cells with null mutations in TRBP? o Reduced siRNA-mediated mRNA degradation o Increased miRNA-mediated translational repression o Increased deadenylase-mediated mRNA degradation o Reduced proteasome-mediated protein degradation D Question 28 3 pts A protein that binds to the 3' UTR of a VEGF mRNA and promotes deadenylation and uncapping is likely to:...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
11. When an individual receives antibodies that were produced by another person, or animal, providing short lived or temporary immunity, that is referred ass: a. active immunity b. humoral immunity c. immunosuppression d. passive acquired immunity e. immunocompetence A method to artificially induce an immune response to an infectious disease is: a. immunity 12. b. resistance c. antitoxin d. vaccination e. conjugation 13. Which is not a characteristic of the inflammatory response? a. delivery of additional effector molecules to the...
are these answers correct ?
1 pts Question 1 Bacteria enters the body through a small cut in the skin. This will result in stimulating all of the processes listed below, but at different stages of the immune response. Which of the following would occur FIRST? stimulate white blood cells to secrete interleukin (IL-1) make memory T cells stimulate the classical complement pathway O produce gamma interferon Question 2 Select the PAMPS from the list below. Select ALL that apply....
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Olfaction occurs when volatile compounds bind to specific
odorant receptors. In mammals, each olfactory receptor neuron in
the olfactory nasal epithelium expresses a single type of odorant
receptor. These odorant receptors constitute a large multigene
family (>1000 members) of related proteins. Binding of odorant
induces a signaling cascade that is mediated via a G protein,
Gaolf. Recent studies suggest that there are a small
number of olfactory sensory neurons in the nasal epithelium that
express members of the trace-amine associated...
1 pts DI Question 6 What region of this molecule shown would bind to mRNA during translation? 3' A-OH 5' A Cacceptor stem G C G- U TuC loop D-loop C U GACAC m'A GGAGAGm m' G C-G A-U variable loop Anticodon loop Cm U A Gm A A The 5' end The anticodon loop The 3 end The variable loop The acceptor stem D Question 7 1 pts What is synthesized during transcription? O a strand of tRNA O...
immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
please answer all 6 questions
Question 27 3 pts TRBP is a protein important for the formation of the RISC complex. Which of the following would you expect in cells with null mutations in TRBP? o Reduced siRNA-mediated mRNA degradation o Increased miRNA-mediated translational repression o Increased deadenylase-mediated mRNA degradation o Reduced proteasome-mediated protein degradation D Question 28 3 pts A protein that binds to the 3' UTR of a VEGF mRNA and promotes deadenylation and uncapping is likely to:...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
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