Description : _____ is the natural ability of an organism to have an inbuilt mechanism to resist and destroy the infection. a) antibiotic b)immunity c)antibodies d)none
Last Answer : b)immunity
Description : _______ is suspension of dead or weakened microbes. a) vaccine b)antibodies c)antibiotics d)bacteria
Last Answer : a) vaccine
Description : ______ helps in fixation of nitrogen in rice field in association with root of Cycas plant. a) rhizobium b)fungus c)cyano bacteria d)bacteria
Last Answer : c)cyano bacteria
Description : Red rot of sugarcane is caused by which microorganism? a) bacteria b)virus c)fungus d)none
Last Answer : c)fungus
Description : Deadly disease which is caused by parasitic microorganism called plasmodium is ______. a) malaria b)dengue c)polio d)rubella
Last Answer : a) malaria
Description : ______ is microorganism that can be crystallized and kept in jar for many days. a) bacteria b)fungi c)virus d)protozoa
Last Answer : c)virus
Description : The ________ disease can be prevented by maintaining good personal hygiene. a) cholera b)tuberculosis c)ringworm d)malaria
Last Answer : c)ringworm
Description : Most of the bacteria in food are killed by ________. a) HCl b) NaCl c) HNo3 d) water
Last Answer : a) HCl
Description : Organ systems which are exposed to external environment are protected from bacteria by presence of ___________. a)mucus membrane b)HCl c)hairs d)plug
Last Answer : a)mucus membrane
Description : Baker’s yeast produce gas which helps in rising of dough is ____________. a) oxygen b)hydrogen c)carbon dioxide d)nitrogen
Last Answer : c)carbon dioxide
Description : Unicellular microscopic fungi is _________ a) yeast b)mould c)toadstool d)penicillium
Last Answer : a) yeast
Description : Ability to eat away germ is speciality of ________. a)red blood cell b)white blood cell c)liver d)plasma
Last Answer : b)white blood cell
Description : Hyperthermophiles are micro organism which live at ____________. a) temperatures between 80^o-122^0 c)cold desert b) very low temperatures d)salt water lake
Last Answer : a) temperatures between 80^o-122^0
Description : _________ is pressurised heating for a short time. a) pasteurisation b)drying c)vacuum packing d)canning
Last Answer : a) pasteurisation
Description : Which of the given food is preserved by drying method? a) milk b)papaya c)jam d)jelly
Last Answer : b)papaya
Description : Foot and Mouth is a disease caused in cattle by __________. a) bacteria b)virus c)fungi d)none
Last Answer : b)virus
Description : Typhoid spreads through _________. a) contaminated water b)air c)animal d)insects
Last Answer : a) contaminated water
Description : Antibiotic (A) Inhibits/destroys the growth of microorganisms (B) Is used as a pain reliever (C) Is an antimalarial (D) Is an anaestheticc
Last Answer : (A) Inhibits/destroys the growth of microorganisms
Description : Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host. Reason
Last Answer : Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside ... both the assertion and reason are false
Description : Immunodeficiency: a) A localized protective reaction of tissue to irritation, injury, or infection, characterized by pain, redness, swelling, and sometimes a loss of function b) A disorder or deficiency ... effect and damage the liver. e) It is an immunity disorder which is genetically transferred.
Last Answer : Ans: B
Description : Identify the wrong statement with reference to immunity. (a) When exposed to antigen (living or dead) antibodies are produced in the host's body. It is called Active immunity . (b) When ... full response. (d) Fetus receives some antibodies from mother, it is an example for passive immunity
Last Answer : c) Active immunity is quick and gives full response.
Description : What is an antibiotic? (1) A chemical compound produced by a living organism that inhibits the growth of other organisms (2) Acompound synthesised by a living organism that inhibits the ... compound inhibiting the growth of other organisms (4) Asynthetic compound inhibiting the growth of bacteria
Last Answer : (4) Asynthetic compound inhibiting the growth of bacteria Explanation: Antibiotics, also known as antimicrobial drugs, are drugs that fight infections caused by bacteria. Alexander Fleming discovered the ... (not produced by microorganisms) that can also kill or inhibit the growth of microbes.
Description : What is an antibiotic ? (1) A chemical compound produced by a living organism that inhibits the growth of other organisms (2) A compound synthesised by a living organism that inhibits the ... compound inhibiting the growth of other organisms (4) A synthetic compound inhibiting the growth of bacteria
Last Answer : A synthetic compound inhibiting the growth of bacteria
Description : The maternal _____ antibodies remain with the child for approximately three to six months after birth providing immunity after birth. a. IgA b. IgG c. IgM d. IgD
Last Answer : b. IgG
Description : Passive artificial immunity occurs in the body when a/an _____ is injected into the body or when a developing fetus receives antibodies across the placenta. a. antibody-rich serum b. antigens c. haptens d. adjuvant
Last Answer : a. antibody-rich serum
Description : Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells
Last Answer : c. B cells, antibodies, T cells
Description : Acquired immunity usually involves protein receptors on B and T cells that recognize discrete regions of the antigen called _____. a. haptens b. epitopes c. antibodies d. protein receptors
Last Answer : b. epitopes
Description : The presence of IgM antibodies in the blood indicates a. An early stage of an infection. b. A chronic infection. c. An allergic reaction is occurring. d. Humoral immunity has yet to start.
Last Answer : a. An early stage of an infection.
Description : How does the body defend itself from microorganisms and other harmful substances that enter the airway during the breathing process?
Last Answer : The epithelium of the airway is a ciliated epithelium and has mucussecreting specialized cells. The secreted mucus covers the internal wall of the airway retaining organisms and foreign ... (sputum) and accidentally aspired objects. Breathing Process Review - Image Diversity: airway epithelium
Description : Transposons are of particular significance because they a. often contain genes for antibiotic resistance. b. inhibit the effects of overlapping genes. c. come in pairs and often are associated with viruses. d. regulate gene transcription in bacterial cells.
Last Answer : a. often contain genes for antibiotic resistance.
Description : An attenuated vaccine is one that a. Can provide life-long immunity. b. Contains live microbes or viruses. c. Is closest to the natural pathogens. d. All the above (a-c) are correct.
Last Answer : d. All the above (a-c) are correct.
Description : 8. Write a short paragraph on the harmful effects of microorganisms. -Science
Last Answer : Microorganisms cause diseases in plants and animals Ex; Cholera in humans is caused by bacteria called Vibrio cholera. In animals, the virus causes foot and mouth diseases. ... food material. Some microorganisms spoil leather and clothes. Microorganisms are responsible for food poisoning.
Description : Portable water should not have a) cannot have smell b)have impurities b) have harmful chemicals d)have microorganisms.
Last Answer : d)have microorganisms.
Description : 1. What is the most appropriate measure of a country's economic growth? 2. The famous player Pele is associated with which game? 3. By which antibodies are produced in the plasma of blood? 4. ... clouds is a low level cloud? 20. Which one of the Chola kings conquered Ceylon (Sinhal) first?
Last Answer : Answer : 1. Per capita real income 2. Football 3. Lymphocytes 4. Anthracite 5. Lord Dalhousie 6. Lok Sabha Speaker 7. Helium 8. Scotland 9. Damodar 10. Canning 11. Rules and regulations12. Liver 13. ... Pradesh 15. Shankaracharya 16. 1.65 cm 17. 22 March 18. Vienna 19. Stratocumulus 20. Rajaraja I
Description : The antibiotic penicillin is obtained from which of the following? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : (3) fungus Explanation: Penicillins are a group of antibiotics used to treat a large range of bacterial infections. They are derived from Penicillium fungi and can be taken orally or via injection. Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming.
Description : The antibiotic penicillin is obtained from which of the following ? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : fungus
Description : An antigens develop antibodies. The Antibody which protect the body from harmful bacteria and viruses are?
Last Answer : Immunoglobulins
Description : What is the difference between a vaccine and an antibiotic?
Last Answer : A: A vaccine is a preparation that contains a weakened or killed pathogen, or a part of the pathogen, which triggers the immune system to produce an immune response and develop immunity to the disease, while an antibiotic is a medication that kills or inhibits the growth of bacteria.
Description : define the following: (1) Vaccine: (2) Antibiotic: (3) Solar eclipse: (4) Exothermic:
Last Answer : (1) Vaccine: an antigenic preparation used to establish immunity to a disease. (2) Antibiotic: a drug that kills or prevents the growth of bacteria. (3) Solar eclipse: occurs when the moon passes ... sun. (4) Exothermic: A reaction that releases energy in the form of heat is called exothermic.
Description : Define any five of the following terms. a) Biogas b) Geothermal energy c) Vaccine d) Antibiotic e) Ceramics f) Light year
Last Answer : a) Biogas: Biogas is the result of the controlled microbial breakdown of organic materials such as animal manures or food scraps in an anaerobic digester.Biogas is a mixture of about 60-70% methane (natural ... 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers.
Description : Infectious coryza can be prevented by C A. Continuous antibiotic treatment B. using live vaccines C. using killed vaccine D. None of these
Last Answer : using killed vaccine
Description : When the Exxon Valdez oil spill occurred, technologists "fertilized" the oil-soaked water with _____ to modify the environment and stimulate he growth of naturally occurring microorganisms. a. nitrogen sources (e.g., urea) b. phosphorus compounds c. other mineral nutrients d. A-C above are correct
Last Answer : d. A-C above are correct
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 : 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 : 1. Bacillus is 2.Which of the following is harmful fungus that causes diseases in plants?
Last Answer : 1. Bacillus is (A) comma shaped (B) rod shaped (C) kidney shaped (D) spiral 2. ... (B) photobiont (C) mycobiont (D) symbiont
Description : What is the Describe the conditions which promote growth of microorganisms?
Last Answer : Need answer
Description : Minimum growth temperature is a. The growth of organisms at lowest temperature b. The lowest temperature at which the microorganisms grow c. The maximum temperature at which the growth is stable d. None of these
Description : What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medium, it promotes the growth of nitrogen fixing microorganisms. 3. ... are correct? a) 1 and 2 only b) 2 only c) 1 and 3 only d) 1, 2 and 3
Last Answer : d) 1, 2 and 3
Description : The medium which allows the growth of more than one microorganisms of interest but with morphologically distinguishable colonies is known as A- selective medium B- enrichment medium C- differential medium D- none of these
Last Answer : differential medium
Description : Fermentation microorganisms produce ____ and growth factors in the food. a. minerals c. calories b. vitamins d. energy
Last Answer : b. vitamins