Description : The main product of glycolysis under aerobic conditions is a. Pyruvate b. Lactate c. None of these d. Both a and b Ans: A 2. The protein moiety of an enzyme is known as a. Holo enzyme b. Apo enzyme c. Co enzyme d. Enzyme
Last Answer : Ans: B
Description : The major constituents in agar are a. Fats b. Aminoacids c. Polysaccharides d. Polypeptides
Last Answer : Ans: C
Description : Nitrites are oxidized to nitrates by a microorganism a. Nitrosomonas b. Nitrosococcus c. Nitrobacter d. Azatobacter
Description : An example of competitive inhibition of an enzyme is the inhibition of a. Succinic dehydrogenase by malonic acid b. Cytochrome oxidase by cyanide c. Hexokinase by glucose-6-phosphate d. Carbonic anhydrase by carbon dioxide
Last Answer : Ans: A
Description : Biological Oxygen Demand (BOD) is a measure of: a. Industrial wastes poured into water bodies b. Extent to which water is polluted with organic compounds c. Amount of carbon monoxide inseparably combined with haemoglobin d. Amount of oxygen needed by green plants during night
Description : Example of anaerobic medium a. Wilson blair medium b. Mac conkey broth c. Robertson’s cooked meat medium d. EMB agar
Description : Yeast extract is an excellent source of a. A Vitamin b. Proteins c. B Vitamin d. Carbohydrates
Description : Two richest known sources of edible protein are – (1) Meat and eggs (2) Some algae and other micro-organisms (3) Soyabean and groundnut (4) Milk and leafy vegetables
Last Answer : (1) Meat and eggs Explanation: Meat, fish and eggs are the richest sources of protein. An ounce of meat or fish has approximately 7 grams of protein. A large ead contains 6 grams protein.
Description : Two richest known sources of edible protein are (1) meat and eggs (2) milk and vegetables (3) soyabean and groundnut (4) some type of algae and other micro-organisms
Last Answer : soyabean and groundnut
Description : Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms
Last Answer : .yeasts
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 : Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups (a) eubacteria and archaea (b) cyanobacteria and diatoms (c) protists and mosses (d) liverworts and yeasts.
Last Answer : (a) eubacteria and archaea
Description : Which one of the following groups of organisms is thermophilic in that they can tolerate and grow at fairly high temperatures? (a) Certain bacteria and blue-green algae (b) Loris, rhesus monkey and red kangaroo (c) Llamas, camels and yaks (d) Bison, musk-ox and racoon
Last Answer : Ans:(a)
Description : Lichen is considered to be a symbiotic association of two living organisms. Which organisms are involved in it? (a) Algae and bacteria (b) Algae and fungi (c) Algae and bryophytes (d) Fungi and bryophytes
Last Answer : Ans:(b)
Description : Which of the following groups of organisms reproduce faster? (1) Algae (2) Fungi (3) Bacteria (4) Protozoa
Last Answer : (3) Bacteria Explanation: Unlike in multicellular organisms, increases in cell size (cell growth and reproduction by cell division) are tightly linked in unicellular organisms. Bacteria grow to a ... divide extremely rapidly, and bacterial populations can double as quickly as every 9.8 minutes.
Description : Of all micro-organisms, the most adaptable and versatile are – (1) Viruses (2) Bacteria (3) Algae (4) Fungi
Last Answer : (1) Viruses Explanation: The viruses are adaptable and versatile with many variations worldwide and they reproduce within the cells of the immune system of infected people. ... versatility an individual has developed to respond to changing interpersonal situations and environmental requirements.
Description : The first photosynthetic oxygen liberating organisms to appear on earth were (1) Cyanobacteria (2) Bryophytes (3) Green algae (4) Bacteria
Last Answer : (1) Cyanobacteria Explanation: Cyanobacteria or blue green algae were the photosynthetic organisms that lived in the ancient ocean. It liberated the oxygen found in the iron oxide.
Description : Organisms, which fix atmospheric nitrogen in the soil, fall under the category of (a) bacteria (b) green algae (c) soil fungi (d) mosses.
Last Answer : (a) bacteria
Description : A few organisms are known to grow and multiply at temperatures of 100-105o C. They belong to (a) thermophilic sulphur bacteria (b) hot spring blue-green algae (c) methanogenic archaebacteria (d) marine archaebacteria.
Last Answer : (a) thermophilic sulphur bacteria
Last Answer : Bacteria
Description : Of all micro-organisms, the most adaptable and versatile are (1) Viruses (2) Bacteria (3) Algae (4) Fungi
Last Answer : Viruses
Description : Two richest known sources of edible protein are - (1) meat and eggs (2) milk and vegetables (3) soyabean and groundnut (4) some type of algae and other microorganisms
Last Answer : (3) soyabean and groundnut Explanation: The richest sources of protein are animal foods such as chicken, meat, fish, cheese and eggs. However, plant proteins are believed to be healthier because of their lower fat content.
Description : Two richest known sources of edible protein are (1) Meat and eggs (2) Some algae and other microorganisms (3) Soyabean and groundnut (4) Milk and leafy vegetables
Last Answer : Meat and eggs
Description : Assertion : both bacteria and yeasts multiply very fast to form huge polulation which express the desired gene
Last Answer : Assertion : both bacteria and yeasts multiply very fast to form huge polulation which express the desired gene A. correct B. not correct C. D.
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 : 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 : What is SCP (single cell protein) in regard to algae? -Biology
Last Answer : answer:
Description : .Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group? (a) Paramecium and Plasmodium belong to the same kingdom as that of Penicillium. (b) ... used in making bread and beer is a fungus. (d) Nostoc and Anabaena are examples of protista.
Last Answer : (c) Yeast used in making bread and beer is a fungus.
Description : Which one single organisms or the pair of organisms is correctly assigned to its or their named taxonomic group ? (1) Nostoc and Anabaena are examples of protista (2) Paramecium and Plasmodium belong to the ... of an algae and a protozoan (4) Yeast used in making bread and beer is a fungus
Last Answer : (4) Yeast used in making bread and beer is a fungus
Description : In the five kingdom system of classification, which single kingdom out of the following can include blue-green algae, nitrogen fixing bacteria and methanogenic archaebacteria? (a) Plantae (b) Protista (c) Monera (d) Fungi
Last Answer : (c) Monera
Description : Which group includes single celled protozoa and algae? a. Bacteria b. Archaea c. Fungi d. Protista
Last Answer : d. Protista
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 cell is found in bluish green algae or bacteria ?
Last Answer : The stem cells are found in bluish green algae or bacteria.
Description : Which of the following is not correctly matched for the organism and its cell wall degrading enzyme? (a) Algae – Methylase (b) Fungi – Chitinase (c) Bacteria – Lysozyme (d) Plant cells – Cellulase
Last Answer : (a) Algae – Methylase
Description : Bacteria and blue-green algae are among the few types of these cells, which lack a nuclear membrane. Name this type of cell.
Last Answer : ANSWER: PROCARYOTIC CELL (pron: pro-KARE-ee-o-tik)
Description : Who proposed the two kingdom classifi- cation of organisms?
Last Answer : Linnaeus
Description : Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. Reason: the plant body of the monera, fungi,a
Last Answer : Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. ... , fungi,algae and bryophytes is haploid.
Description : Which of the following would appear as the pioneer organisms on bare rocks? (a) Mosses (b) Green algae (c) Lichens (d) Liverworts
Last Answer : (c) Lichens
Description : Growth of __________ is promoted by the presence of manganese in water. (A) Files (B) Algae (C) Micro-organisms (D) Mosquitoes
Last Answer : (C) Micro-organisms
Description : Eukaryotic micro organisms include A- Protozoa B- .fungi C- Algae D- all of these
Last Answer : all of these
Description : What do bacteria have in common with a cell with other living organisms?
Last Answer : What is the answer ?
Description : Gram negative organisms are largely insensitive to benzyl penicillin because (a) They produce large quantities of penicillinase (b) They do not utilize D-alanine whose incorporation in the cell wall is ... lipoprotein-peptidoglycan multiplayer cell wall of gram-negative bacteria (d) Both (a) and (b)
Description : An antibiotic is - (1) achemical synthesized by a human cell against a microorganism (2) a chemical synthesised by amicro-organism against another micro-organisms (3) a substance produced by blood cells against bacteria (4) a substance produced by blood cells against infection.
Last Answer : (2) a chemical synthesised by amicro-organism against another microorganisms Explanation: An antibacterial is an agent that inhibits bacterial growth or kills bacteria. The term is often used ... by a microorganism that is antagonistic to the growth of other microorganisms in high dilution.
Description : Which of the following organisms does not fit into the Cell Theory? (1) Bacteria (2) Virus (3) Fungi (4) Plants
Last Answer : (2) Virus Explanation: The cell theory states that all living things are made of cells, cells are the basic units of structure and function of living things, and that all cells come from other cells.
Description : Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i) Methanogens are archaebacteria which produce methane in marshy areas. (ii) Nostoc is a filamentous blue-green alga which fixes ... iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv).
Last Answer : (d) (i), (ii) and (iv)
Description : Gram negative organisms are largely insensitive to benzyl penicillin because: A. They produce large quantities of penicillinase B. They do not utilise D-alanine whose incorporation in the cell wall is inhibited ... multilayer cell wall of gram negative bacteria D. Both A' and B' are correct
Last Answer : . Benzyl penicillin is not able to penetrate deeper into the lipoprotein-peptidoglycan multilayer cell wall of gram negative bacteria
Last Answer : Virus
Description : An antibiotic is (1) a chemical synthesized by a human cell against a microorganism (2) a chemical synthesised by a micro-organism against another micro-organisms (3) a substance produced by blood cells against bacteria (4) a substance produced by blood cells against infection.
Last Answer : a chemical synthesised by a micro-organism against another micro-organisms
Description : Has anyone ever made bread using wild yeasts?
Last Answer : answer:I tried but I don’t think I’m in a yeasty area. I had quite the experiments going as I had failure after failure. I finally ended up using a bit of commercial yeast to get my starter going. It helped to have a bit of some sort of sugar to start.