What is the cellular functions that occur when antibiotics attack a bacteria cell?

What is the cellular functions that occur when antibiotics attack a bacteria cell?
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The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes ... peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : Ans: B

Aminoglycoside antibiotics exert the following action(s) on sensitive bacteria: A. Induce synthesis of defective proteins B. Make bacterial cell membrane more leaky C. Augment their own carrier mediated entry into the bacteria D. All of the above

Description : Aminoglycoside antibiotics exert the following action(s) on sensitive bacteria: A. Induce synthesis of defective proteins B. Make bacterial cell membrane more leaky C. Augment their own carrier mediated entry into the bacteria D. All of the above

Last Answer : D. All of the above

The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes and inhibit bacterial protein synthesis C. They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes ... peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis

A plaque is a a. Change In Cell Structure Due To Viral Infection. b. Viral Cell Inclusion. c. Clear Zone Within A Lawn Of Bacteria. d. Cellular Aggregation Of Phage Heads.

Description : A plaque is a a. Change In Cell Structure Due To Viral Infection. b. Viral Cell Inclusion. c. Clear Zone Within A Lawn Of Bacteria. d. Cellular Aggregation Of Phage Heads.

Last Answer : c. Clear Zone Within A Lawn Of Bacteria.

A 55-year-old renal transplant patient has been hospitalized in a Surgical Intensive Care Unit, receiving a prolonged course of antibiotics following an attack of acute cholecystitis. The following statement(s) is/are true concerning his management. a. Due to the potential risk of Candida infection, prophylaxis with oral nystatin should be instituted early in the patient’s course b. A Candida urinary tract infection should be treated with systemic amphotericin B c. Changes of Candida retinitis are of little significance d. The presence of a virulent Candida bacteremia should suggest a dosage reduction in immunosuppressive agents until the infection can be adequately controlled

Description : A 55-year-old renal transplant patient has been hospitalized in a Surgical Intensive Care Unit, receiving a prolonged course of antibiotics following an attack of acute cholecystitis. The ... suggest a dosage reduction in immunosuppressive agents until the infection can be adequately controlled

Last Answer : Answer: a, d Infections due to fungal pathogens have become increasingly common during the past decade, frequently occurring in patients undergoing prolonged hospitalization in the Surgical ... agents should be discontinued until evidence of infection is absolutely controlled or is eradicated

Broad spectrum antibiotics are one which attack (a) Pathogens as well as host (b) A wide range of pathogens (c) Only pathogens (d) Only host

Description : Broad spectrum antibiotics are one which attack (a) Pathogens as well as host (b) A wide range of pathogens (c) Only pathogens (d) Only host

Last Answer : Ans:(b)

In what cell orgnelle does cellular respiration occur?

Description : In what cell orgnelle does cellular respiration occur?

Last Answer : mitochondria

The complement system consists of a series of serum proteins that exist in a quiescent or very low-level state of activation in the uninfected host. Which of the following statement(s) is/are true concerning complement activation? a. The alternate (properdin) pathway of complement activation can occur directly through contact with fungal or bacterial cell wall compounds b. Complement component fragments may serve to decrease vascular permeability c. Excessive complement activation can produce deleterious effects d. Fragments of certain complement components serve as chemoattractants to additional cellular components of the host defense mechanism

Description : The complement system consists of a series of serum proteins that exist in a quiescent or very low-level state of activation in the uninfected host. Which of the following ... certain complement components serve as chemoattractants to additional cellular components of the host defense mechanism

Last Answer : Answer: a, c, d Complement activation can occur through either classic or alternate (properdin) pathways, both of which eventuate in deposition of terminal complement pathway components on the ... and release of lysosomal enzymes that can directly damage certain target tissues, such as the lung

What are the antibiotics obtained from bacteria? -Biology

Description : What are the antibiotics obtained from bacteria? -Biology

Last Answer : answer:

How do antibiotic resistant bacteria resist antibiotics?

Description : How do antibiotic resistant bacteria resist antibiotics?

Last Answer : becomes resistant to antibiotics mostly by the misuse of antibiotics

If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually resistant species, penicillin is not indicated c. Immediate operative intervention and aggressive resection of all involved tissues is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Description : If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually ... is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Last Answer : Answer: a, c Identification of a necrotizing, soft tissue infection mandates immediate operative intervention with aggressive resection of all involved tissues and empiric ... remains without controlled trials demonstrating any additional benefits derived from hyperbaric oxygen therapy

A diabetic develops a severe perineal infection with skin necrosis, subcutaneous crepitance, and drainage of a thin, watery, grayish and foul-smelling fluid. Management should consist of: a. Gram stain of the fluid, which will likely demonstrate multiple bacteria including predominantly gram-positive rods b. A CT scan is indicated in a stable patient to define the extent of the disease c. Broad spectrum antibiotics followed with prompt extensive debridement is indicated d. A safe guideline is to resect infected necrotic tissue so that a several centimeter margin of grossly normal, healthy tissue can be achieved e. A colostomy is of little benefit in this situation

Description : A diabetic develops a severe perineal infection with skin necrosis, subcutaneous crepitance, and drainage of a thin, watery, grayish and foul-smelling fluid. Management should consist of: a. Gram stain ... normal, healthy tissue can be achieved e. A colostomy is of little benefit in this situation

Last Answer : Answer: a, b, c, d The presence of severe perineal infection (referred to as Fournier gangrene when this process involves the perineum and scrotum in males) is associated with a ... often provides improved wound care and patient management, although it is not invariably a positive outcome

Bacteria are more sensitive to antibiotics at which phase of growth curve? a. Decline phase b. Stationary phase c. Lag phase d. Log phase

Description : Bacteria are more sensitive to antibiotics at which phase of growth curve? a. Decline phase b. Stationary phase c. Lag phase d. Log phase

Last Answer : Ans: D

Superinfections are more common with (a) Use of narrow spectrum antibiotics (b) Short courses of antibiotics (c) Use of antibiotics that are completely absorbed from the small intestines (d) Use of antibiotic combinations covering both gram positive and gram negative bacteria

Description : Superinfections are more common with (a) Use of narrow spectrum antibiotics (b) Short courses of antibiotics (c) Use of antibiotics that are completely absorbed from the small intestines (d) Use of antibiotic combinations covering both gram positive and gram negative bacteria

Last Answer : Ans: D

Widespread and prolonged used of an antibiotic leads to emergence of drug resistant strains because antibiotics (a) Induce mutation in the bacteria (b) Promote conjugation among bacteria (c) Allow resistant strains to propagate preferentially (d) All of the above

Description : Widespread and prolonged used of an antibiotic leads to emergence of drug resistant strains because antibiotics (a) Induce mutation in the bacteria (b) Promote conjugation among bacteria (c) Allow resistant strains to propagate preferentially (d) All of the above

Last Answer : Ans: C

Which is the effect of antigen in an ill person? (1) It increases the production of W.B.C. (2) It increases the production of antibiotics (3) It increases the production of antiserum against bacteria (4) It prevents the growth of bacteria

Description : Which is the effect of antigen in an ill person? (1) It increases the production of W.B.C. (2) It increases the production of antibiotics (3) It increases the production of antiserum against bacteria (4) It prevents the growth of bacteria

Last Answer : (2) It increases the production of antibiotics Explanation: Vaccines containing antigens are introduced into the body, stimulating the immune system response by instructing B cells, with assistance from T cells, to ... , and send it to the T cells so that an immune system response can be mobilized.

The main reason why antibodies could not solve all the problems of bacteria mediated disease is (a) decreased efficiency of the immune system (b) insensitivity of the individual following prolonged exposure to antibiotics (c) development of mutant strains resistant to antibodies (d) inactivation of antibiotics by bacterial enzymes.

Description : The main reason why antibodies could not solve all the problems of bacteria mediated disease is (a) decreased efficiency of the immune system (b) insensitivity of the individual ... development of mutant strains resistant to antibodies (d) inactivation of antibiotics by bacterial enzymes.

Last Answer : (c) development of mutant strains resistant to antibodies

Antibiotics are products of (a) Bacteria and fungi (b) Fungi and parasites (c) Parasites and bacteria (d) Fungi and viruses

Description : Antibiotics are products of (a) Bacteria and fungi (b) Fungi and parasites (c) Parasites and bacteria (d) Fungi and viruses

Last Answer : (a) Bacteria and fungi

The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorisedas (a) cyanobacteria (b) archaebacteria (c) chemosynthetic autotrophs (d) heterotrophic bacteria.

Description : The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorisedas (a) cyanobacteria (b) archaebacteria (c) chemosynthetic autotrophs (d) heterotrophic bacteria.

Last Answer : (d) heterotrophic bacteria

Prophylaxis antibiotic for anthrax is given to people with symptoms who have been in a defined “hot zone” for a period of a) 60 days. Those with symptoms who have been in the hot zone should be given 60 days of prophylactic antibiotic. The aim of prophylaxis is to assure that if spores were inhaled, bacteria will be killed immediately upon release from spores. Those who have symptoms of fever, cough, headache, chills, and especially evidence of mediastinal lymph node involvement should be treated with intravenous antibiotics and respiratory support, if needed.

Description : Prophylaxis antibiotic for anthrax is given to people with symptoms who have been in a defined hot zone for a period of a) 60 days. Those with symptoms who have been in the hot zone should ... . Those with symptoms who have been in the hot zone should be given 60 days of prophylactic antibiotic

Last Answer : a) 60 days. Those with symptoms who have been in the hot zone should be given 60 days of prophylactic antibiotic. The aim of prophylaxis is to assure that if spores were ... of mediastinal lymph node involvement should be treated with intravenous antibiotics and respiratory support, if needed.

Bacteria are most sensitive to antibiotics at which phase of growth curve A Lag phase B Log Phase C Stationary phase D Phase of Decline

Description : Bacteria are most sensitive to antibiotics at which phase of growth curve A Lag phase B Log Phase C Stationary phase D Phase of Decline

Last Answer : B Log Phase

_______ is suspension of dead or weakened microbes. a) vaccine b)antibodies c)antibiotics d)bacteria

Description : _______ is suspension of dead or weakened microbes. a) vaccine b)antibodies c)antibiotics d)bacteria

Last Answer : a) vaccine

Superinfections are more common with: A. Use of narrow spectrum antibiotics B. Short courses of antibiotics C. Use of antibiotics that are completely absorbed from the small intestines D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

Description : Superinfections are more common with: A. Use of narrow spectrum antibiotics B. Short courses of antibiotics C. Use of antibiotics that are completely absorbed from the small intestines D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

Last Answer : D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

Widespread and prolonged use of an antibiotic leads to emergence of drug resistant strains because antibiotics: A. Induce mutation in the bacteria B. Promote conjugation among bacteria C. Allow resistant strains to propagate preferentially D. All of the above

Description : Widespread and prolonged use of an antibiotic leads to emergence of drug resistant strains because antibiotics: A. Induce mutation in the bacteria B. Promote conjugation among bacteria C. Allow resistant strains to propagate preferentially D. All of the above

Last Answer : C. Allow resistant strains to propagate preferentially

The most abundant prokaryotes helpful to humans in marking curd from milk and in production of antibiotics are the ones categorised as (1) Heterotrophic bacteria (2) Cyanobacteria (3) Archaebacteria (4) Chemosynthetic autotrophs

Description : The most abundant prokaryotes helpful to humans in marking curd from milk and in production of antibiotics are the ones categorised as (1) Heterotrophic bacteria (2) Cyanobacteria (3) Archaebacteria (4) Chemosynthetic autotrophs

Last Answer : (1) Heterotrophic bacteria

Which is the effect of antigen in an ill person ? (1) It increases the production of W.B.C. (2) It increases the production of antibiotics (3) It increases the production of anti-serum against bacteria (4) It prevents the growth of bacteria

Description : Which is the effect of antigen in an ill person ? (1) It increases the production of W.B.C. (2) It increases the production of antibiotics (3) It increases the production of anti-serum against bacteria (4) It prevents the growth of bacteria

Last Answer :  It increases the production of antibiotics

Which of the following statement(s) is/are true concerning the role of antibiotics in wound care? a. Systemic antibiotics are indicated for all open wounds b. Bacterial resistance can occur with systemic but not topical antibiotics c. An indication for systemic antibiotic administration is a granulation tissue bacterial count in excess of greater than 105 organisms/gram of tissue on quantitative analysis d. Silver sulfadiazine is useful only for the management of burns

Description : Which of the following statement(s) is/are true concerning the role of antibiotics in wound care? a. Systemic antibiotics are indicated for all open wounds b. Bacterial resistance can occur with ... of tissue on quantitative analysis d. Silver sulfadiazine is useful only for the management of burns

Last Answer : Answer: c The role of antibiotics in wound care is controversial. All open wounds are colonized with bacteria. Only when surrounding tissue is invaded (cellulitis) are systemic antibiotics clearly ... of relevant drug-resistant plasmids in bacteria, and its low cost make it a good choice

Biological functions of lipids include (A) Source of energy (B) Insulating material (C) Maintenance of cellular integrity (D) All of these

Description : Biological functions of lipids include (A) Source of energy (B) Insulating material (C) Maintenance of cellular integrity (D) All of these

Last Answer : Answer : D

What are the main cellular functions of potassium?

Description : What are the main cellular functions of potassium?

Last Answer : Besides being important for the osmotic regulation and for the acid-base equilibrium (pH) potassium is fundamental for the excitatory mechanisms of nerves and in muscle contraction.

What is the role of NAD+ in cellular respiration? (a) It functions as an enzyme. (b) It functions as an electron carrier. (c) It is a nucleotide source for ATP synthesis. (d) It is the final electron acceptor for anaerobic respiration.

Description : What is the role of NAD+ in cellular respiration? (a) It functions as an enzyme. (b) It functions as an electron carrier. (c) It is a nucleotide source for ATP synthesis. (d) It is the final electron acceptor for anaerobic respiration.

Last Answer : c) It is a nucleotide source for ATP synthesis.

What is the role of NAD+ in cellular respiration ? (1) It functions as an enzymes (2) It functions as an electron carrier (3) It is a nucleotide source for ATP synthesis (4) It is the final electron acceptor for anaerobic respiration

Description : What is the role of NAD+ in cellular respiration ? (1) It functions as an enzymes (2) It functions as an electron carrier (3) It is a nucleotide source for ATP synthesis (4) It is the final electron acceptor for anaerobic respiration

Last Answer : (2) It functions as an electron carrier

Where does cellular respiration occur? -Biology

Description : Where does cellular respiration occur? -Biology

Last Answer : answer:

Where does cellular respiration occur? -Biology

Description : Where does cellular respiration occur? -Biology

Last Answer : answer:

When caring for a patient receiving autolytic debridement therapy, the nurse a) advises the patient about the foul odor that will occur during therapy. During autolytic debridement therapy a foul odor will be produced by the breakdown of cellular debris. This odor does not indicate that the wound is infected.

Description : When caring for a patient receiving autolytic debridement therapy, the nurse a) advises the patient about the foul odor that will occur during therapy. During autolytic debridement ... Pancrease. Commercially available enzymatic debriding agents include Accuzyme, Clooagenase, Granulex, and Zymase.

Last Answer : a) advises the patient about the foul odor that will occur during therapy. During autolytic debridement therapy a foul odor will be produced by the breakdown of cellular debris. This odor does not indicate that the wound is infected.

The cell reproduction in bacteria may occur by A.binary fission B.budding C.fragmentationD.all of these

Description : The cell reproduction in bacteria may occur by A.binary fission B.budding C.fragmentation D.all of these

Last Answer : D.all of these

If we somehow mix the genes of a corona-immune creature and a phage and make it attack a virus instead of a bacteria then it sall be a cure won't it please tell me if there is any hole in my plan.-Nithesh.K?

Description : If we somehow mix the genes of a corona-immune creature and a phage and make it attack a virus instead of a bacteria then it sall be a cure won't it please tell me if there is any hole in my plan.-Nithesh.K?

Last Answer : *shall and no question mark at the end..

What are likely to increase in quantities when the body is under attack from bacteria?

Description : What are likely to increase in quantities when the body is under attack from bacteria?

Last Answer : White blood cells are involved in the immune response to identify and target invading bacteria, viruses, and other foreign organisms; they also recycle waste components, such as old red blood cells.

The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart's working due to unknown reason

Description : The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart's working due to unknown reason

Last Answer : (3) lack of blood supply to the heart Explanation: Heart attack is the death of a segment of heart muscle caused by the loss of blood supply. It occurs when the blood flow that brings oxygen ... artery, one that supplies blood to the heart muscle, is blocked by a blood clot (coronary thrombosis).

Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial attack (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out (4) None of these

Description : Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial ... state in a solution of high osmotic strength as water is drawn out (4) None of these

Last Answer : (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out Explanation: The reason why bacteria does not grow in high concentration of sugar ... measure of unbound, free water molecules in the food that is necessary for microbial survival and growth.

Bacteria, which can attack normal corneal epithelium: a. Neisseria gonorrhea. b. Staphylococcal epidermidis c. Moraxella lacunata. d. Staphylococcal aureus

Description : Bacteria, which can attack normal corneal epithelium: a. Neisseria gonorrhea. b. Staphylococcal epidermidis c. Moraxella lacunata. d. Staphylococcal aureus 

Last Answer : ANSWER: A

Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial attack (3) Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out (4) None of these

Description : Honey that has high concentration of sugar does not decay because (1) Bacteria cannot survive in an active state as it is totally deprived of oxygen (2) It contains natural antioxidant that prevents bacterial ... state in a solution of high osmotic strength as water is drawn out (4) None of these

Last Answer : Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out

The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart’s working due to unknown reason

Description : The cause of Heart attack is: (1) bacteria (2) virus (3) lack of blood supply to the heart (4) impairment of heart’s working due to unknown reason

Last Answer :  lack of blood supply to the heart

What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the chain reaction. (b) It functions by destabilizing the carbocationic intermediate and thereby increases the rate of H+ loss. (c) It serves as a Lewis base catalyst by reacting with Cl2 to generate chloride ions. (d) It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.

Description : What purpose does FeCl3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? (a) It serves as a radical initiator to produce the chlorine radical needed to propagate the ... by reacting with the Cl2 and thereby activates it toward attack by benzene's π electrons.

Last Answer : It serves as a Lewis acid catalyst by reacting with the Cl2 and thereby activates it toward attack by benzene’s π electrons.

When did the first Submarine attack occur?

Description : When did the first Submarine attack occur?

Last Answer : In 1776

Where did the first submarine attack occur?

Description : Where did the first submarine attack occur?

Last Answer : At New York Harbor

Which of the problems listed will occur if a lead-acid battery is allowed to remain in a discharged condition for a long period of time? A. The battery may be unable to accept a full charge. B. The electrolyte will change to lead sulfate. C. The concentrated sulfuric acid will attack the lead peroxide plates. D. The separators will harden.

Description : Which of the problems listed will occur if a lead-acid battery is allowed to remain in a discharged condition for a long period of time? A. The battery may be unable to accept a full charge ... . C. The concentrated sulfuric acid will attack the lead peroxide plates. D. The separators will harden.

Last Answer : Answer: A

Heart attack occur due to

Description : Heart attack occur due to

Last Answer : Low amount blood carries to the heart

A 35-year-old male presented with an attack of acute gout. He was treated with a 10 day course of naproxen. His blood uric acid level is high. What future line of treatment is most appropriate: A. No regular medication. Treat attacks of acute gout when they occur with naproxen. B. Regular long-term treatment with naproxen C. Regular long-term treatment with allopurinol D. Start with allopurinol + naproxen for 2 months followed by long-term allopurinol treatment

Description : A 35-year-old male presented with an attack of acute gout. He was treated with a 10 day course of naproxen. His blood uric acid level is high. What future line of treatment is ... treatment with allopurinol D. Start with allopurinol + naproxen for 2 months followed by long-term allopurinol treatment

Last Answer : D. Start with allopurinol + naproxen for 2 months followed by long-term allopurinol treatment

Which of the following classes of antineoplastic agents is cell– cycle-specific? a) Antimetabolites (5-FU) Antimetabolites are cell–cycle-specific (S phase). b) Antitumor antibiotics (bleomycin) Antitumor antibiotics are cell-cycle nonspecific. c) Alkylating agents (cisplatin) Alkylating agents are cell-cycle nonspecific. d) Nitrosureas (carmustine) Nitrosureas are cell-cycle nonspecific.

Description : Which of the following classes of antineoplastic agents is cell- cycle-specific? a) Antimetabolites (5-FU) Antimetabolites are cell-cycle-specific (S phase). b) Antitumor antibiotics ( ... agents are cell-cycle nonspecific. d) Nitrosureas (carmustine) Nitrosureas are cell-cycle nonspecific.

Last Answer : a) Antimetabolites (5-FU) Antimetabolites are cell–cycle-specific (S phase).