Description : One of the benefits of biofilms is _____. a. quorum sensing b. keeping aquariums clean c. bioremediation of toxic wastes d. production of oil
Last Answer : c. bioremediation of toxic wastes
Description : Some scientists‘ estimate that in nature, _____ of all microbial activities occur in biofilms. a. 0.25 b. 0.33 c. 0.45 d. 0.6 e. 0.99
Last Answer : e. 0.99
Description : _____ bacteria live as individuals and do not live in biofilms. a. Planktonic b. Anaerobic c. Aerobic d. Facultative anaerobic
Last Answer : a. Planktonic
Description : Bacterial cells in biofilms can communicate with each other through a. osmosis b. quorum sensing c. diffusion d. enzymes
Last Answer : b. quorum sensing
Description : The primary reason for a physician to prescribe human insulin is that: a) It has a faster onset of action than other insulins b) It has a shorter duration of action than other insulins c ... in preventing the complications of diabetes than animal insulins e) It is more sterile than other insolines.
Last Answer : Ans: C
Description : ________ occurs if a microbial member of the normal microbiota should gain access to sterile tissue. a. Pathogenicity Islands b. Exogenous Infection c. Endogenous Infection d. Polymicrobial Disease
Last Answer : c. Endogenous Infection
Description : A newborn a. Contains indigenous micro biota before birth. b. Remains sterile for many weeks after birth, c. Becomes colonized soon after conception. d. Is colonized with many common micro biotas within a few days after birth.
Last Answer : a. Contains indigenous micro biota before birth.
Description : Which of the foLlowing is NOT a transmission mechanism for hepatitis B? a. Sexual contact b. Non-sterile body piercing equipment c. Fecal-oral route d. Blood-contaminated needles
Last Answer : c. Fecal-oral route
Description : What disease is described by: "the toxin acts at the neuromuscular junction, preventing the release of neurotransmitters needed to inhibit muscle contraction." a. Botulism b. Tetanus c. The Plague d. A-C Are Correct
Last Answer : b. Tetanus
Description : Trichoderma harzianum has proved a useful microorganism for (a) gene transfer in higher plants (b) biological control of soil-borne plant pathogens (c) bioremediation of contaminated soils (d) reclamation of wastelands.
Last Answer : (b) biological control of soil-borne plant pathogens
Description : An acute wound could be due to a. Surgical Procedures. b. Cuts. c. Lacerations. d. All The Above (A—C) Are Correct.
Last Answer : d. All The Above (A—C) Are Correct.
Description : Immunosuppressive agents used in preventing transplant rejection primarily affect a. macrophages. b. neutrophils. c. dendritic cells. d. T cells.
Last Answer : d. T cells.
Description : By which of the following means antifungal chemotherapeutic agents may affect fungi? A- Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis B- ... membrane-bound enzymes like thoseinvolved in nutrient transport and chitin synthesis D- all of these
Last Answer : all of these
Description : Ehrlich and Hata discovered that was used to treat a. Salvarsan; syphilis b. penicillin; surgical wounds c. Salvarsan; malaria. d. Prontosil; malaria
Last Answer : a. Salvarsan; syphilis
Description : The most common nosocomial infection involves a. Blood. b. Lungs. c. Urinary Tract. d. A Surgical Site.
Last Answer : c. Urinary Tract.
Description : What surgical practice was established by Lister? a. antisepsis b. chemotherapy c. variolation d. sterilization
Last Answer : a. antisepsis
Description : .Fluoridation is the adjustment of the fluoride content of a community water supply to optimum levels for caries prevention. Which of the following statement is correct? A. Tooth decay ... in smooth surface caries from in pit and fissures D. Fluoridation increases vulnerability to osteoporosis
Last Answer : C. Greater reduction in smooth surface caries from in pit and fissures
Description : The rapid plasma reagin test and VDRL test are both used _____. a. In The Diagnosis Of Syphilis. b. To Detect Toxic Shock Syndrome. c. To Gauge The Extent Of Dental Decay. d. To Distinguish Ureaplasmal And Mycoplasmal Urethritis.
Last Answer : a. In The Diagnosis Of Syphilis.
Description : Routine maintenance of dry-type transformers should include ______________. A. preventing the entrance of water from broken pipe lines steam lines B. keeping protective surfaces and insulating bushings free of ... debris C. periodic testing of insulation resistance with a megger D. all of the above
Last Answer : Answer: D
Description : Which of the following statement(s) is/are correct concerning the management of an open wound? a. Frequent surgical debridement is usually necessary b. Water irrigation can effectively debride ... products have clearly been shown to promote wound healing compared to simple moist occlusive dressing
Last Answer : Answer: b Although there are numerous dressing products commercially available at present, no treatment has been demonstrated to improve healing beyond that of standard treatment which adheres to basic ... healing is achieved, there has been no evidence that one product is better than another
Description : As far as surgical removal of wisdom teeth is concerned which of the following is true? a- Prophylactic prescription of antibiotic reduces dramatically the chances of infection. b- Raising a lingual ... e- The use of vasoconstrictors in local anaesthetics will increase the chances of infection.
Last Answer : b- Raising a lingual flap will increases the incidence of neurapraxia but will reduce the incidence of neurotmesis with respect to the lingual nerve.
Description : As far as surgical removal of wisdom teeth is concerned, which of the following is true?**CHECK A. Prophylactic prescription of antibiotic reduces dramatically the chances of infection B. Raising ... root E. The use of vasoconstrictors in local anaesthetics will increase the chances of infection.
Last Answer : C. Prophylactic prescription of dexamethasone will dramatically reduces post operative swelling
Description : Does chewing gum cause tooth decay ?
Last Answer : Generally speaking , chewing gum does not harm teeth or mouth. However, if children eat gum , it can cause problems in the throat. According to the American Dental Association in clinical trials , ... , but the problem is that sugar makes acid. So sugar-free chewing gum is better. References
Description : How to eliminate tooth decay ?
Last Answer : You go to the Dental doctor . He will remove the gap.
Description : How to get rid of tooth decay ?
Last Answer : We have an idea about cavities. There are many such problems. However, many people think that cavities are caused by insects in the teeth. Or think you have tooth decay. There is no end to our ... If you feel more problems, consult a doctor without neglecting. Take care of your teeth , stay well.
Description : What is the easiest way to prevent tooth decay ?
Last Answer : Some simple habits can easily prevent tooth decay - 1. Teeth should be brushed at least twice a day. But many do not want to be lazy to brush their teeth at night. But at night, tooth decay is more ... Put fish , vegetables and milk on the food list every day . And you must drink water after meals.
Description : How to get rid of tooth decay in a natural way ??? Tell the details. ?
Last Answer : How many things do we do to make our teeth shiny? From expensive toothpaste to regular visit to the dentist , just to whiten yellow teeth. However, all this will not be necessary , if you use a homemade ... you can make your teeth shine in a natural way! You can read more about: Dental care at home
Description : Hello, I have a really big decay. Such a hole through a quarter of a tooth. It doesn't hurt or I have any other problems. I have already booked a dentist, but I have two months off. Can the caries worsen significantly? Thanks for the advice
Last Answer : Need Answer
Description : What is THE LAYER OF BACTERIA THAT CAN LEAD TO TOOTH DECAY?
Last Answer : Feel Free to Answer
Description : To reduce tooth decay most toothpastes contain a – (1) Bromide (2) Fluoride (3) Iodide (4) Chloride
Last Answer : (2) Fluoride Explanation: Fluoride in toothpastes prevent tooth, decay from progressing and can even reverse, or stop, early tooth decay. It works by promoting a chemical reaction in tooth enamel ... itself into enamel weakened by acid attack, making the tooth more resistant to future acid attacks.
Description : Tooth decay is caused by? A. Salt B. Sugar (Answer) C. Calcium D. Formalin
Last Answer : B. Sugar (Answer)
Description : What are the causes of tooth decay? How it can be prevented?
Last Answer : Causes: - i) Main cause is sugar coating left by sugary food in teeth. ii) These sugars convert into acid by bacteria. iii) The acid damages the enamel and infects the dentine and pulp cavity. ... ) We should clean our teeth after eating sugary or sticky food. iv) Balanced died should be taken.
Description : Presence of excess fluorine in water causes (A) Dental cavity (B) Tooth decay (C) Fluorosis (D) Respiratory disease
Last Answer : (C) Fluorosis
Description : Presence of nitrates in water in excess of 50 ppm causes (A) Methemoglobinemia (B) Gastroenteritis (C) Asphyxiation (D) Tooth decay
Last Answer : (A) Methemoglobinemia
Description : Which of the following is true in relation to dental decay? A. Foods that require vigorous mastication will increase salivary flow and reduce PH B. Tooth brushing immediately after meals is most ... E. The Stephan Curve describes an increase in PH during a meal with resultant of demineralisation
Last Answer : E. The Stephan Curve describes an increase in PH during a meal with resultant of demineralisation
Description : What is tooth decay or how to keep your teeth healthy?
Last Answer : What is tooth decay or how to keep your teeth healthy? Caries, or pathological decay of teeth, is an extremely common phenomenon in Russia. Statistics show that 80-90% of children suffer from ... better than artificial, for this you need to undergo a mandatory examination at least twice a year.
Description : Cariology is the study of the: a) human heart b) tooth decay c) kidneys d) liver
Last Answer : ANSWER: B -- Tooth Decay
Description : To reduce tooth decay most toothpastes contain a (1) Bromide (2) Fluoride (3) Iodide (4) Chloride
Last Answer : Fluoride
Description : Which of the following is NOT a condition seen with the development of dental caries? a. A Susceptible Tooth With A Buildup Of Plaque b. Dietary Carbohydrates (Usually Sugar) c. Acidogenic Bacterial Species d. Chewing A Lot Of Gum
Last Answer : d. Chewing A Lot Of Gum
Description : Mushroom cultivation is not useful in (1) Biogas production (2) Biological control of crop diseases (3) Recycling of agricultural wastes (4) Preventing cancer
Last Answer : (2) Biological control of crop diseases Explanation: Mushroom cultivation has been found to coincide with decrease of incidents of breast cancer. Spent residues after cultivation could ... production; and agricultural waste recycling can be achieved through controlled cultivation of mushrooms.
Description : Mushroom cultivation is not useful in – (1) Biogas production (2) Biological control of crop diseases (3) Recycling of agricultural wastes (4) Preventing cancer
Last Answer : (2) Biological control of crop diseases
Description : Sacred groves are specially useful in (a) generating environmental awareness (b) preventing soil erosion (c) year-round flow of water in rivers (d) conserving rare and threatened species.
Last Answer : (d) conserving rare and threatened species.
Description : Single-word or general keywords are ______ A. too broad and can lead to clicks from people who don't know what you're offering B. excellent for your return on investment C. useful in generating highly targeted traffic for your site D. good for preventing irrelevant traffic
Last Answer : A. too broad and can lead to clicks from people who don't know what you're offering
Description : Good oral hygiene and fluoridation is LEAST useful in preventing caries of: A. Pit and fissure B. Smooth surface C. Inaccessible areas
Last Answer : A. Pit and fissure
Last Answer : Biological control of crop diseases
Description : Tetracylin prevents synthesis of polypeptide by (A) Blocking mRNA formation from DNA (B) Releasing peptides from mRNA-tRNA complex (C) Competing with mRNA for ribosomal binding sites (D) Preventing binding of aminoacyl tRNA
Last Answer : Answer : D
Description : Why are they not using bioremediation on the Gulf oil spill ? Evidently these are naturally occuring microbes, available in powdered form, which feed on the oil and digest it into harmless compounds.
Last Answer : answer:I'm not a scientist, but the site you linked does say The microbes are simply mixed with water and sprayed on the oil as it reaches the calmer waters near shore or on shore itself. That could be ... before all the oil gets to the shore and it can get to the water that's under the surface.
Description : Which one has been genetically modified to help in bioremediation
Last Answer : Which one has been genetically modified to help in bioremediation A. Pseudomonas B. Xanthomonas C. Nitrosococcus D. Trichoderma