Description : The bacteria which can ferment mannitol anaerobically is A.Staphylococcusaureus B.S epidermidis C.S saprophyticus D.None of these
Last Answer : A.Staphylococcusaureus
Description : Which of the following bacteria dies quickly after drying? A.Treponemapallidium B.Mycobacterium tuberculosis C.Staphylococcusaureus D.Pseudomonasaeruginosa
Last Answer : A.Treponemapallidium
Description : Which organism is found in the acidic vagina of women of reproductive age? a. Candida albicans b. Lactobacillus c. Escherichia coli. d. Staphylococcus epidermidis
Last Answer : b. Lactobacillus
Description : Which of the following can be a cause of food poisoning? a. Streptococcus Pyogenes b. Staphylococcus Aureus. c. Pseudomonas Fluorescens d. Streptococcus Epidermidis
Last Answer : b. Staphylococcus Aureus.
Last Answer : b. Staphylococcus Aureus
Description : Which of the following property(ies) is/are seen in the members of family Enterobacteriaceae? A.Theyare catalase-positive B.Theyare oxidase-negative C.They ferment glucose D.They reduce nitrates to nitrites
Last Answer : B.Theyare oxidase-negative
Description : Bacteria, which can attack normal corneal epithelium: a. Neisseria gonorrhea. b. Staphylococcal epidermidis c. Moraxella lacunata. d. Staphylococcal aureus
Last Answer : ANSWER: A
Description : Why is it important to exercise anaerobically?
Last Answer : Need answer
Description : Why is it important for everyone to exercise anaerobically,not just athletes?
Last Answer : Muscle strength is necessary in our daily lives,and plus we need to stay fit and watch our weight! We need to exercise for a balanced life style of activity!
Description : During Griffith's transformation experiments _____. a. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Caused Animal Death. b. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Failed To ... . d. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Failed To Kill The Animals.
Last Answer : c. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Caused Animal Death.
Description : Which of the following (s) is/are the major spoilage of soft drinks from the marked growth of yeasts and bacteria? A.Cloudiness and ropiness B.Flat sour spoilage C.Superficial fungal spoilage D.Pin-spot molding
Last Answer : A.Cloudiness and ropiness
Last Answer : Cloudiness and ropiness
Description : Why does apple cider ferment so quickly?
Last Answer : Even though your cider was pasteurized, that only killed the stuff that was living in it at the time of pasteurization. In the meantime, what you did was leave a very sugary, nutritious feedstock in a ... living on top of so much garbage, you wouldn't believe it! Hail, yeast and bacteria! ;)
Description : Does Xylitol ferment?
Last Answer : Xylitol does ferment. It is a sugar alchohol and can be metabolized by bacteria.
Description : Whats the minimum that beer has to ferment?
Last Answer : U have to wait at least 3 months
Description : he synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called (A) A ferment or an enzyme (B) Haemoglobin (C) Fungi (D) None of these
Last Answer : (C) Fungi
Description : Which of the following statement(s) is/are true concerning the treatment of pulmonary interstitial edema? a. Diuresis and blood transfusion is a valuable step b. Salt-poor albumin leaks through the ... a diuretic in this clinical situation d. Isoproterenol is a poor choice as an ionotropic agent
Last Answer : Answer: a Treatment of pulmonary edema has two important goals, the first is to improve oxygenation if it is impaired, and the second is to minimize fibrosis and bacterial infection, which often ... leaks out , the short term effects of expanding blood volume and decrease in edema will appear
Description : Do all bacteria require oxygen for growth?
Last Answer : Many bacteria are aerobic; that is, they require oxygen to grow and perform the biochemical reactions of their metabolism. There are, however, a large number of bacterial species that are ... obligate anaerobes, while others are facultative anaerobes, meaning that they live with or without oxygen.
Description : Are bacteria able to move, and, if so, how?
Last Answer : Bacteria (and other prokaryotes) have the ability to move by means of flagella. Flagella are composed of the globular protein flagellin. They are extremely long and thin and cannot be seen by the light ... pair of rings, while Gram- negative bacteria have both inner and outer pairs of rings).
Description : Are chromosomes the only parts of bacteria that can be transformed?
Last Answer : Bacteria possess extrachromosomal loops of DNA called plasmids. Plasmids are small, self-replicating loops of DNA with about 10 to 50 genes. They are not essential for the survival of the ... process called curing, which can occur spontaneously or can be induced by certain environmental factors.
Description : For retting of jute the fermenting microbe used is (a) methanophilic bacteria (b) butyric acid bacteria (c) Helicobacter pylori (d) Streptococcus lactin.
Last Answer : b) butyric acid bacteria
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 : Polluted water usually contains coliform bacteria like _____. a. Streptococcus b. Proteus c. Escherichia coli d. Pseudomonas
Last Answer : c. Escherichia coli
Description : Two major drawbacks to the use of ______ is allergies and beta- lactamases produced by resistant bacteria. a. Tetracycline b. Penicillin c. Cephalosporin d. Bacitracin
Last Answer : b. Penicillin
Description : The drug isoniazid is used widely in contemporary medicine to a. Treat tuberculosis. b. Prevent fungal overgrowth in the intestine. c. Clear away wound infections. d. Eliminate infections due to gram-negative bacteria.
Last Answer : a. Treat tuberculosis.
Description : Which one of the following pairs is incorrectly matched as to antibiotic and use? a. Penicillin-gram-positive bacteria b. Nystatin-fungi c. Tetracycline-viruses d. Griseofulvin-fungi
Last Answer : c. Tetracycline-viruses
Description : An attenuated vaccine contains a. Inactive toxins. b. Living, but slow growing (replicating) antigens. c. Killed bacteria. d. Noninfective antigen subunits.
Last Answer : b. Living, but slow growing (replicating) antigens.
Description : The bacterial enzyme ______ assists the spread of bacteria away from a blood clot, while ______ assists the spread through body tissues. a. Streptokinase; Hyaluronidase b. Streptokinase; Hemolysin c. Coagulase; Hyaluronidase d. Coagulase; Hemolysin
Last Answer : a. Streptokinase; Hyaluronidase
Description : _____ refers to bacteria that grow and spread through the blood. a. Chronic Disease b. Septicemia c. Acute Disease d. Bacteremia
Last Answer : b. Septicemia
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.
Description : Which of the following are antimicrobial defense mechanisms in the urethra? a. size and length of the urethra b. shedding of cells in the mucosal lining and bacteria with urination c. normally basic urine d. A-C are correct
Last Answer : b. shedding of cells in the mucosal lining and bacteria with urination
Description : Which of the following is NOT a way to prevent food from being contaminated? a. Control The Initial Number Of Bacteria Present b. Prevent The Small Number From Growing c. Destroy Bacteria By Cooking Properly d. Avoid Recontamination After Cooking e. Re-Freeze Food After Cooking
Last Answer : e. Re-Freeze Food After Cooking
Description : What type of periodontal disease occurs when plaque bacteria build up between teeth and gums? a. Trench mouth b. ANUG c. Gingivitis d. Periodontitis
Last Answer : c. Gingivitis
Description : Methylene blue staining of metachromatic granules is diagnostic for which of the following bacteria? a. Mycobacterium Tuberculosis b. Coiynebacterium Diphtheriae c. Chlamydia Pneumoniae d. Bordetella Pertussis
Last Answer : b. Coiynebacterium Diphtheriae
Description : Conjugation pili are found only on some ______ bacteria, though it may occur between cells of various bacteria. a. Gram-positive b. Gram-negative c. Acid-fast d. Capsule containing
Last Answer : b. Gram-negative
Description : Without restriction endonucleases, it would be very difficult to a. Force Plasmids into Bacteria. b. Chemically Open Dna Molecules. c. Replicate Dna In A Recombinant Cell. d. Bring About Mutations In Bacteria.
Last Answer : b. Chemically Open Dna Molecules.
Description : The process of conjugation in bacteria requires that _____. a. Two Types Of Viruses Be Present. b. The Conjugating Bacteria Be Deprived Of Nutrients. c. Two Bacteria Exchange Dna. d. Two Live Bacteria Come Together.
Last Answer : d. Two Live Bacteria Come Together.
Description : By some estimates, about ______ of our 25,000 genes are identical to those in some members of the Bacteria. a. 10 b. 20 c. 200 d. 1000
Last Answer : c. 200
Description : The bacterium Deinococcus radiodurans has been of interest to molecular biologists because a. it has the smallest known bacterial genome. b. it is a "living fossil" linking the Bacteria and Archaea. c. it has the largest known bacterial genome. d. it is very resistant to radiation damage.
Last Answer : d. it is very resistant to radiation damage.
Description : In bacteria a group of genes located together and functioning together on a chromosome are called _____. a. polysome b. operon c. polymerase d. exons
Last Answer : b. operon
Description : When is a HEPA filter used? a. To Filter Bacteria Out Of A Vaccine b. To Trap Particles In The Air c. To Protect Burn Victims d. To Separate Bacteria And Viruses
Last Answer : b. To Trap Particles In The Air
Description : Which of the following describes incineration? a. Flaming The Loop Before Transferring Bacteria b. Burning Medical Waste c. Burning Cattle That Died Of Anthrax d. A-C Are Correct
Last Answer : d. A-C Are Correct
Description : What is the thermal death time? a. The Time Necessary To Kill Bacteria At A Specific Temperature b. The Temperature Necessary To Kill Microbes In A Specific Time c. The Average Amount Of Time To Kill Microbial Cells d. It Is The Same As The Thermal Death Point
Last Answer : a. The Time Necessary To Kill Bacteria At A Specific Temperature
Description : If a chemical has a phenol coefficient (PC) of 63, it means the chemical a. ‗Is Better Than One With A PC Of 22., b. Will Kill 63P/O Of Bacteria. c. Kills Microbes At 63°C. d. Will Kill All Bacteria In 63 Minutes.
Last Answer : a. ‗Is Better Than One With A PC Of 22.,
Description : Chemoautotrophic bacteria obtain the energy they need from a. The Reactions Of Photosynthesis. b. Sunlight. c. Carbon Dioxide In The Atmosphere. d. Inorganic Chemicals.
Last Answer : b. Sunlight.
Description : The photosynthetic pigments used by the green sulfur bacteria and some archaeal species are a. Chlorophyll b. Bacteriochlorophyll c. Cytochrome d. Sulfate
Last Answer : b. Bacteriochlorophyll
Description : Activated sludge contains large number of A.bacteria B.yeasts and molds C.protozoa D.all of these
Last Answer : D.all of these
Description : Bacteria of genus Nitrosomonas use __________ as their electron source. A.ammonia B.H2S C.succinate D.light
Last Answer : A.ammonia
Description : Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type? A.Pour plate B.Spread plate C.Both (a) and (b) D.Streak plate technique
Last Answer : C.Both (a) and (b)