Description : Bacterial leaf blight of rice is caused by a species (a) Alternaria (b) Erwinia (c) Xanthomonas (d) Pseudomonas.
Last Answer : (c) Xanthomonas
Description : Cell walls in fungi are made of _____. a. Cellulose b. Glycogen c. Silicon d. Chitin
Last Answer : d. Chitin
Description : Why are slime molds considered to resemble plants? A.They can photosynthesize B.Theyhave cell walls composed largely of cellulose C.They form a threadlike structure D.They form structures that resemble leaves
Last Answer : B.Theyhave cell walls composed largely of cellulose
Last Answer : Theyhave cell walls composed largely of cellulose
Description : Why are slime molds considered to resemble plants? A- They can photosynthesize B- They have cell walls composed largely of cellulose C- They form a threadlike structure D- They form structures that resemble leaves
Last Answer : They have cell walls composed largely of cellulose
Description : A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of (a) Trichoderma (b) Xanthomonas (c) Bacillus (d) Pseudomonas.
Last Answer : (d) Pseudomonas.
Description : The organism, used for alcohol fermentation, is (a) Aspergillus (b) Saccharomyces (c) Pseudomonas (d) Penicillium.
Last Answer : (b) Saccharomyces
Description : A good producer of citric acid is (a) Clostridium (b) Saccharomyces (c) Aspergillus (d) Pseudomonas.
Last Answer : (c) Aspergillus
Description : Yeasts of the species Saccharomyces a. Are Used In Bread Making. b. Reproduce By Budding. c. Are Members Of The Ascomycetes. d. All Of The Above (A—C) Are Correct.
Last Answer : d. All Of The Above (A—C) Are Correct.
Description : Microbial rennet, which is used in cheese manufacture is produced by A- .Mucorspp B- Aspergillusspp C- Bacillus spp D- Saccharomyces spp
Last Answer : Aspergillusspp
Description : Most important species of vinegar bacteria causing sliminess is A-.Acetobacteraceti B- Saccharomyces carlsbergiensis C- Lactobacillus lactis D- None of the above
Last Answer : .Acetobacteraceti
Description : Most important species of vinegar bacteria causing sliminess is A- Acetobacteraceti B- Saccharomyces carlsbergiensis C- Lactobacillus lactis D- None of the above
Last Answer : Acetobacteraceti
Description : Which of the following is not true for prokaryotic organism? A.Nucleus is not bounded by nuclear membrane B.Chromosomes does not contain histones C.80S ribosomes are distributed in cytoplasm D.Cell wall contains peptidoglycan as one of the major component
Last Answer : C.80S ribosomes are distributed in cytoplasm
Description : Which of the following is not true for prokaryotic organism? A- Nucleus is not bounded by nuclear membrane B- Chromosomes does not contain histones C- 80S ribosomes are distributed in cytoplasm D- Cell wall contains peptidoglycan as one of the major component
Last Answer : 80S ribosomes are distributed in cytoplasm
Description : Polluted water usually contains coliform bacteria like _____. a. Streptococcus b. Proteus c. Escherichia coli d. Pseudomonas
Last Answer : c. Escherichia coli
Description : : All the following are among the opportunistic organisms that may cause nosocomial disease except: a. Pseudomonas aeruginosa. b. Escherichia coli. c. Staphylococcus aureus. d. Mycobacterium leprae.
Last Answer : d. Mycobacterium leprae.
Description : The most common cause of an invasive wound infection, such as a burn, is a. gram-positive bacterial species. b. treponema pallidum. c. Pseudomonas aeruginosa. d. Escherichia coli.
Last Answer : c. Pseudomonas aeruginosa.
Description : What bacterial species is most often associated with cystitis? a. Treponemo pallidum b. Escherichia coIi c. Chlamydia trachomatis d. Pseudomonas aeruginosa
Last Answer : b. Escherichia coIi
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 : Swimmer's ear is commonly seen in children from swimming pools in the summer. It is often caused by _____. a. Streptococcus b. Staphylococcus aureus. c. Pseudomonas d. A-C are correct
Last Answer : d. A-C are correct
Description : .A musty or muddy odor of the fish is attributed to A.the growth of Streptomyces species in the mud at the bottom of the body of water B.the mud at the bottom of the body of water C.the growth of Pseudomonas species in the mud at the bottom of the body of water D.none of the above
Last Answer : A.the growth of Streptomyces species in the mud at the bottom of the body of water
Description : Which of the following gram-negative bacteria is/are not aerobic? A.Pseudomonas B.Neisseria C.Escherichia D.None of these
Last Answer : C.Escherichia
Description : Gram-positive bacteria, responsible for food poisoning, is/are A.Mycoplasmas B.Pseudomonas C.Clostridia D.all of these
Last Answer : C.Clostridia
Description : Gram-positive bacteria, responsible for food poisoning, is/ar A.Mycoplasmas B.Pseudomonas C.Clostridia D.all of these
Last Answer : .Clostridia
Description : Pseudomonas aeruginosa forms a blue water soluble pigment called A-pyocyanin B- chlororaphin C- pyoverdin D-β-carotene
Last Answer : pyocyanin
Description : Which of the following bacteria dies quickly after drying? A- .Treponema palladium B- Mycobacterium tuberculosis C- Staphylococcus aureus D- Pseudomonas aeruginosa
Last Answer : .Treponema palladium
Description : An example of an anaerobe that causes disease in humans is _____. Clostridium a. E.coli b. Salmonella c. Pseudomonas
Last Answer : a. E.coli
Description : Which of the following statements is false about cellulose? (a) It is a polymer of glucose molecules joined in β-1,4 linkages. (b) It is a major component of cotton. (c) It is used in the manufacture of Dacron fibres. (d) It is used in the manufacture of Rayon fibres
Last Answer : It is used in the manufacture of Dacron fibres.
Description : Which one of the following statements about fungi is NOT true? a. Some fungi are dimorphic. b. Fungi have cell walls made of chitin. c. Fungi are photosynthetic organisms. d. Fungi consist of the yeasts and molds.
Last Answer : c. Fungi are photosynthetic organisms
Description : Teichoic acids are typically found in A- cell walls of gram positive bacteria B- outer membranes of gram positive bacteria C- cell walls of gram negative bacteria D- outer membranes of gram negative bacteria
Last Answer : cell walls of gram positive bacteria
Description : The cell walls of many gram positive bacteria can be easily destroyed by the enzyme known as A-lipase B- .lysozyme C- .pectinase D-.peroxidase
Last Answer : .lysozyme
Description : Mycoplasmas are different from the other prokaryotes by A- presence of chitin in cell walls B- presence of murrain in cell walls C- presence of proteins in cell wallsD- bsence of cell wall itself
Last Answer : bsence of cell wall itself
Description : Which one of the following is NOT a polysaccharide? a. Chitin b. Glycogen c. Cellulose d. Lipid
Last Answer : d. Lipid
Description : Damping off of seedlings is caused by (1) Peronospola parasitica (2) Albugo Candida (3) Phytophthora infestans (4) Pythium debaryanum
Last Answer : (4) Pythium debaryanum Explanation: Damping off is a horticultural disease or condition, caused by a number of different pathogens that kill or weaken seeds or seedlings before or after ... solani, attacks by Pythium are most associated with producing roughly circular patcties of dead seedlings.
Last Answer : Pythium debaryanum
Description : Thickness and toughness of plant walls are increased by deposition within the original cellulose wall, of a substance known as lignin. The process of deposition is called: a) Sclerenchymacia b) Lignification c) Scleridia
Last Answer : ANSWER: B -- LIGNIFICATION
Description : A person whose inner walls lining the main airways of the lungs become inflamed and who develops a dry cough for a few days, probably has a. Acute Bronchitis. b. Epiglottitis. c. Pneumonia. d. Chronic Bronchitis.
Last Answer : c. Pneumonia
Description : Which one of the following living organisms completely lacks a cell wall? (a) Cyanobacteria (b) Sea-fan (Gorgonia) (c) Saccharomyces (d) Blue-green algae
Last Answer : (b) Sea-fan (Gorgonia)
Description : Which one of the following bacteria has found extensive use in genetic engineering work in plants? (a) Clostridium septicum (b) Xanthomonas citri (c) Bacillus coagulens (d) Agrobacterium tumefaciens
Last Answer : (d) Agrobacterium tumefaciens
Description : Which of the following is not used as a biopesticide? (a) Trichoderma harzianum (b) Nucleopolyhedrovirus (NPV) (c) Xanthomonas campestris (d) Bacillus thuringiensis
Last Answer : (c) Xanthomonas campestris
Description : The Black rust of disease of wheat is caused by- a) Xanthomonas graminis b) Puccinia graminis c) Puccinia recondita d) None of these
Last Answer : b) Puccinia graminis
Description : Black (stem) rust of wheat is caused by (a) Alternaria solani (b) Ustilago nuda (c) Puccinia graminis (d) Xanthomonas oryzae
Last Answer : (c) Puccinia graminis
Description : Xanthomonas oryzae is causal organism of — disease a. Citrus canker b. Bacterial blight of rice c. Fire blight of apple d. Corn stunt
Last Answer : b. Bacterial blight of rice
Description : Brown leaf spot of rice is caused by — a. Drechslera oryzae b. Cercspora arachidicola c. Xanthomonas oryzae d. Pyricularia oryzae
Last Answer : a. Drechslera oryzae
Description : A bio-herbicide to control Poa annua a). Smolder (Alternaria destruens) b). Woad Warrior (Puccinia thaspeos) c). Sarritor (Sclerotinia minor) d). Camperico (Xanthomonas campestris)
Last Answer : d). Camperico (Xanthomonas campestris)
Description : One of the major components of cell wall of most fungi is (a) cellulose (b) hemicellulose (c) chitin (d) peptidoglycan.
Last Answer : (c) chitin
Description : A person who is eating boiled potato, his food contains the component (a) cellulose which is digested by cellulase (b) starch which is digested (c) lactose which is not digested (d) DNA which can be digested by pancreatic DNase.
Last Answer : (b) starch which is digested
Description : A major difference between EHEC and EPEC is A.EHEC secretes a Shiga-like toxin and EPEC does not B.EHEC possesses a type III secretion system and EPEC does not C.EPEC rearranges host cell actin and EHEC does not D.EPEC passes through the placenta to infect the fetus and EHEC does not
Last Answer : A.EHEC secretes a Shiga-like toxin and EPEC does not