Homework Answers
Answer : Direct entry of the nucleic acid into the cell
The second stage of infection is entry or penetration. this through contraction of the tail sheath, which acts like a hypodermic needle to inject the viral genome through the cell wall and membrane.
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o o cell receptors, c, the type of nucleic acid it cell d viral enzymes e,...
Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves: Select one: O a....
Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves: Select one: O a. injection of naked nucleic acid into the host cell. O b. adsorption to specific receptors. O c. replication of viral nucleic acid. O d. lysis of the host cell. e. assembly of viral components. Which of the following can contribute to postoperative infections? Select one: O a. antibiotic resistance O b. using syringes more than once O c. errors in aseptic technique d. normal...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
8) The Replication of Coronavirus is depicted in Figure 1 (See below). As you can see...
8) The Replication of Coronavirus is depicted in Figure 1 (See below). As you can see in Comment 2, it is not clear whether the virus gets into the host cell by FUSION or RECEPTOR-MEDIATED ENDOCYTOSIS. Please define & describe the entry of a virus by FUSION and by RECEPTOR-MEDIATED ENDOCYTOSIS. How could a Coronavirus enter a cell? Which mechanism do YOU THINK is most likely correct? Why? (20 points) FIGURE 1. Replication of Coronavirus extra pace N-acetylneramik acid receptor...
1. True or False: Scavenger and C-type lectin receptors bind pathogens and induce phagocytosis by macrophages....
1. True or False: Scavenger and C-type lectin receptors bind pathogens and induce phagocytosis by macrophages. 2. Which of the following is a location of Toll-like receptor (TLR) expression in the cell? a. Plasma membrane b. Mitochondrial membrane c. Cytoplasm d. Nucleus 3. True or False: Between the four different inflammasome complexes, bacterial byproducts and DNA can be recognized to induce inflammation. 4. Pattern recognition receptors that detect viral infections have primarily ___________ expression. 1. Intracellular 2. Extracellular 3. Free...
23. All the following could be possibly target sites for antibacterials except a. peptidoglycan b. ribosomes...
23. All the following could be possibly target sites for antibacterials except a. peptidoglycan b. ribosomes cf ergosterol d. RNA e. Bacterial enzymes 24. T-cell dependent antigens can a. directly stimulate B cells to multiply and produce antibodies b. restrict antibody formation c. activate macrophages d. indirectly activate Th cells 25. Which of the following is not an effect of complement activation a. interferes with viral replication b. bacterial cell lysis opsonization d. increased phagocytic activity e. inflammation 26. Resistance...
15 through 20 please A) live lab animals; B) embryonated bird eggs: C) tissue cell cultures;...
15 through 20 please
A) live lab animals; B) embryonated bird eggs: C) tissue cell cultures; D) a blood agar 15. Which of the following is a type of cytopathic effect that can be used as evidence of viral infection? A) inclusions in the nucleus; B) multinucleated giant cells (syncytia): C) inclusions in the cytoplasm; D) cells rounding up and transforming into tumor cells; E) all of the choices are correct 16. Which of the following is a function of...
- WERS ON THE SCANTRON SHEET PROVIDE 1. Viruses are known as obligate, intracellular A) Organisms...
- WERS ON THE SCANTRON SHEET PROVIDE 1. Viruses are known as obligate, intracellular A) Organisms B) Symbionts C) Ornelles D) Pass 2. Which of the following is a property of life shared by pokaryote ndaryote A) nucleic acids used to store hereditary information B) the capacity to evolve C) the ability to replicate (reproduce) without invading a host cell D) presence of proteins E) the capacity to mutate , NOV 3. Which of the following is characteristic of the...
12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe...
12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe but to the hoat c. kill bacteria in our bodies all the above 13. All of the following pertain to the role ofactivated helper T cells in cellular mediatesd immunity except a. differentiation into memory Th cells b. recognize MHC with antigenic peptide on macrophages c. activate Te cells indirectly lead to cytolysis through complement e. indirectl y lead to phagocytosis of large microorganisms...
1.In early March, it was reported that two main strains of SARS-CoV-2 had been identified, termed...
1.In early March, it was reported that two main strains of SARS-CoV-2 had been identified, termed S and L, with the S type being the less virulent ancestral form representing about 30% of prevalence and the more virulent L type having descended from the S type and representing about 70% of prevalence. However, the prevalence of the more virulent L type seems to have decreased after early January, and it is thought that this resulted from human intervention against this...
The process(es) of a. osmosis b. diffusion c. facilitated diffusion d. active transport e. two of the above 7. do...
The process(es) of a. osmosis b. diffusion c. facilitated diffusion d. active transport e. two of the above 7. do NOT proceed to equilibriunm 8. The process of br a. Phagocytosis b. Pinocytosis c. Receptor mediated endocytosis d. None of the above ringing large particles into the cell using vesicles is called 9. Water is capable of forming hydrogen bonds because a. the hydrogen atoms carry partial positive charges. b. the oxygen atom carries a partial negative charge. c. it...
Bacteriophage replication differs from animal virus replication because only bacteriophage replication involves: Select one: O a. injection of naked nucleic acid into the host cell. O b. adsorption to specific receptors. O c. replication of viral nucleic acid. O d. lysis of the host cell. e. assembly of viral components. Which of the following can contribute to postoperative infections? Select one: O a. antibiotic resistance O b. using syringes more than once O c. errors in aseptic technique d. normal...
HIV, the virus which causes AIDS, interacts with two receptors on the host cell membrane: CD4 and CCR5. A small percentage of individuals have a genetic mutation which causes their cells to lack CCR5. These individuals will never develop AIDS nor are they able to pass HIV on to others. Which part of viral replication is being blocked by the lack of a receptor? Select one: o a. Newly assembled virions cannot be released from the host cell. O b....
8) The Replication of Coronavirus is depicted in Figure 1 (See below). As you can see in Comment 2, it is not clear whether the virus gets into the host cell by FUSION or RECEPTOR-MEDIATED ENDOCYTOSIS. Please define & describe the entry of a virus by FUSION and by RECEPTOR-MEDIATED ENDOCYTOSIS. How could a Coronavirus enter a cell? Which mechanism do YOU THINK is most likely correct? Why? (20 points) FIGURE 1. Replication of Coronavirus extra pace N-acetylneramik acid receptor...
23. All the following could be possibly target sites for antibacterials except a. peptidoglycan b. ribosomes cf ergosterol d. RNA e. Bacterial enzymes 24. T-cell dependent antigens can a. directly stimulate B cells to multiply and produce antibodies b. restrict antibody formation c. activate macrophages d. indirectly activate Th cells 25. Which of the following is not an effect of complement activation a. interferes with viral replication b. bacterial cell lysis opsonization d. increased phagocytic activity e. inflammation 26. Resistance...
15 through 20 please
A) live lab animals; B) embryonated bird eggs: C) tissue cell cultures; D) a blood agar 15. Which of the following is a type of cytopathic effect that can be used as evidence of viral infection? A) inclusions in the nucleus; B) multinucleated giant cells (syncytia): C) inclusions in the cytoplasm; D) cells rounding up and transforming into tumor cells; E) all of the choices are correct 16. Which of the following is a function of...
- WERS ON THE SCANTRON SHEET PROVIDE 1. Viruses are known as obligate, intracellular A) Organisms B) Symbionts C) Ornelles D) Pass 2. Which of the following is a property of life shared by pokaryote ndaryote A) nucleic acids used to store hereditary information B) the capacity to evolve C) the ability to replicate (reproduce) without invading a host cell D) presence of proteins E) the capacity to mutate , NOV 3. Which of the following is characteristic of the...
12. Antimicrobials may a. produce allergic reactions b. produce toxic effects not only to the microbe but to the hoat c. kill bacteria in our bodies all the above 13. All of the following pertain to the role ofactivated helper T cells in cellular mediatesd immunity except a. differentiation into memory Th cells b. recognize MHC with antigenic peptide on macrophages c. activate Te cells indirectly lead to cytolysis through complement e. indirectl y lead to phagocytosis of large microorganisms...
The process(es) of a. osmosis b. diffusion c. facilitated diffusion d. active transport e. two of the above 7. do NOT proceed to equilibriunm 8. The process of br a. Phagocytosis b. Pinocytosis c. Receptor mediated endocytosis d. None of the above ringing large particles into the cell using vesicles is called 9. Water is capable of forming hydrogen bonds because a. the hydrogen atoms carry partial positive charges. b. the oxygen atom carries a partial negative charge. c. it...
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