Decomposition of organic matter is due to (a) Virus (b) Fungi (c) Bacteria (d) None of these

Decomposition of organic matter is due to (a) Virus (b) Fungi (c) Bacteria (d) None of these
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Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. Mycorrhiza (iv) Symbiotic association of algae and fungi Choose the correct answer from the options given below. (A) (B) (C) (D) (a) (ii) (iii) (iv) (i) (b) (i) (ii) (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Description : Match column -I with column - II. Column-I Column-II A. Saprophyte (i) Symbiotic association of fungi with plant roots B. Parasite (ii) Decomposition of dead organic materials C. Lichens (iii) Living on living plants or animals D. ... (iii) (iv) (c) (iii) (ii) (i) (iv) (d) (ii) (i) (iii) (iv)

Last Answer : (a) (ii) (iii) (iv) (i)

Mouth and foot disease in cattle are caused due to (a) Bacteria (b) Virus (c) Fungi (d) Penicillium

Description : Mouth and foot disease in cattle are caused due to (a) Bacteria (b) Virus (c) Fungi (d) Penicillium

Last Answer : Ans:(b)

Phyllody of sesame is caused due to a. Bacteria b. Fungi c. MLO d. vIRUS

Description : Phyllody of sesame is caused due to a. Bacteria b. Fungi c. MLO d. vIRUS

Last Answer : c. MLO

FMD is caused due to a. Bacteria b. Virus c. Fungi d. Protozoa

Description : FMD is caused due to a. Bacteria b. Virus c. Fungi d. Protozoa

Last Answer : b. Virus

In septic tanks, decomposition of organic bacteria, is done by A. Anaerobic bacteria B. Aerobic bacteria C. Both types of bacterias D. None of these

Description : In septic tanks, decomposition of organic bacteria, is done by A. Anaerobic bacteria B. Aerobic bacteria C. Both types of bacterias D. None of these

Last Answer : ANS: A

Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is (A) H2 (B) CH4 (C) CO2 (D) N2

Description : Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is (A) H2 (B) CH4 (C) CO2 (D) N2

Last Answer : (B) CH4

The chemical decomposition produced by micro-organisms on certain organic matter is

Description : The chemical decomposition produced by micro-organisms on certain organic matter is

Last Answer : called fermentation.

The process of decomposition of organic matter is termed as

Description : The process of decomposition of organic matter is termed as

Last Answer : Ans. Humification

In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed

Description : In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed

Last Answer : ANS: D

The sewage treatment units in which anaerobic decomposition of organic matter is used, are called A. Imhoff tanks B. Trickling filters C. Sludge sedimentation tanks D. None of these

Description : The sewage treatment units in which anaerobic decomposition of organic matter is used, are called A. Imhoff tanks B. Trickling filters C. Sludge sedimentation tanks D. None of these

Last Answer : ANS: B

Most of Nitrogen is used in the decomposition of __________ and thus plant shows deficiency symptoms : a. Amino acids b. Cellulose c. Carbon compounds d. Organic matter

Description : Most of Nitrogen is used in the decomposition of __________ and thus plant shows deficiency symptoms : a. Amino acids b. Cellulose c. Carbon compounds d. Organic matter

Last Answer : Cellulose

Pick out the wrong statement.(A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days by the biological decomposition of the organic matter present in water stream present as food for the living organism (C) BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Description : Pick out the wrong statement. (A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days ... BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Last Answer : (D) None of these

The casual organism of Polio is - (1) A fungi (2) A virus (3) A worm (4) A bacteria

Description : The casual organism of Polio is - (1) A fungi (2) A virus (3) A worm (4) A bacteria

Last Answer : (2) A virus Explanation: Polio is a highly infectious disease caused by a virus. Its causative agent, poliovirus, was identified in 1908 by Karl Landsteiner. The polio virus invades the nervous system, and can cause total paralysis in a matter of hours.

Interferons are synthesized in response to – (1) Bacteria (2) Fungi (3) Myroplasma (4) Virus

Description : Interferons are synthesized in response to – (1) Bacteria (2) Fungi (3) Myroplasma (4) Virus

Last Answer : (4) Virus Explanation: Interferons (IFNs) are a group of signaling proteins made and released by host cells in response to the presence of pathogens, such as viruses, bacteria, parasites, ... named for their ability to "interfere" with viral replication by protecting cells from virus infections.

Interferons are synthesized in response to – (1) Bacteria (2) Fungi (3) Mycoplasma (4) Virus

Description : Interferons are synthesized in response to – (1) Bacteria (2) Fungi (3) Mycoplasma (4) Virus

Last Answer : (4) Virus Explanation: Interferons (IFNs) are a group of signaling proteins made and released by host cells in response to the presence of pathogens, such as viruses, bacteria, parasites, ... named for their ability to "interfere" with viral replication by protecting cells from virus infections.

Which of the following causes swine flu? (1) Bacteria (2) Fungi (3) Tapeworm (4) Virus

Description : Which of the following causes swine flu? (1) Bacteria (2) Fungi (3) Tapeworm (4) Virus

Last Answer : (4) Virus Explanation: Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also ... similar to the regular flu. It originated in pigs, but is spread primarily from person to person.

Which of the following organ-isms does not fit into the Cell Theory? (1) Bacteria (2) Virus (3) Fungi (4) Plants

Description : Which of the following organ-isms 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. ... , and do not use cells in any of their processes, they are not related to the cell theory.

Polio disease is caused by - (1) Bacteria (2) Fungi (3) Virus (4) Worm

Description : Polio disease is caused by - (1) Bacteria (2) Fungi (3) Virus (4) Worm

Last Answer : (3) Virus Explanation: Polio, or poliomyelitis, is a crippling and potentially deadly infectious disease. It is caused by the poliovirus.

Which of the following organisms does not fit into the Cell Theory? (1) Bacteria (2) Virus (3) Fungi (4) Plants

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.

What causes common cold? (1) Bacteria (2) Fungi (3) Virus (4) Protozoa

Description : What causes common cold? (1) Bacteria (2) Fungi (3) Virus (4) Protozoa

Last Answer : (3) Virus Explanation: The common is a viral infectious disease of the upper respiratory tract which affects primarily the nose. Over 200 viruses are implicated in the cause of the common cold; the rhinoviruses are the most common.

Penicillinis isolated from : (1) Fungi (2) Algae (3) Virus (4) Bacteria

Description : Penicillinis isolated from : (1) Fungi (2) Algae (3) Virus (4) Bacteria

Last Answer : (1) Fungi Explanation: Penicillin is one of the first and still one of the most widely used antibiotic agents - derived from the Penicillium mold (fungi). Penicillin kills bacteria by interfering with the ability to synthesize cell wall.

Ringworm is a disease caused by (1) Fungi (2) Bacteria (3) Virus (4) Flies

Description : Ringworm is a disease caused by (1) Fungi (2) Bacteria (3) Virus (4) Flies

Last Answer : (1) Fungi Explanation: Ringworm, also known as dermatophytosis or tinea, is a fungal infection of the skin or scalp.

'Ringworm' is a disease caused by - (1) Fungi (2) Bacteria (3) Virus (4) Flies

Description : 'Ringworm' is a disease caused by - (1) Fungi (2) Bacteria (3) Virus (4) Flies

Last Answer : (1) Fungi Explanation: Ringworm, also known as dermatophytosis or tinea, is a fungal infection of the skin or scalp.

Parasitology is the science, which deals with A A. Parasites B. Bacteria C. Virus D. Fungi

Description : Parasitology is the science, which deals with A A. Parasites B. Bacteria C. Virus D. Fungi

Last Answer : Parasites

Lysozyme that is present in perspiration, saliva and tears, destroys (a) certain types of bacteria (b) all viruses (c) most virus-infected cells (d) certain fungi.

Description : Lysozyme that is present in perspiration, saliva and tears, destroys (a) certain types of bacteria (b) all viruses (c) most virus-infected cells (d) certain fungi.

Last Answer : (a) certain types of bacteria

Damping-off is caused by: a. Fungi b. Bacteria c. Nematodes d. Virus

Description : Damping-off is caused by: a. Fungi b. Bacteria c. Nematodes d. Virus

Last Answer : Fungi

Mycology is a study of (a) Bacteria (b) Virus (c) Fungi(d) Parasites

Description : Mycology is a study of (a) Bacteria (b) Virus (c) Fungi(d) Parasites

Last Answer : (c) Fungi

Budding is most common asexual reproduction of — a. Bacteria b. Fungi c. Virus d. Yeast

Description : Budding is most common asexual reproduction of — a. Bacteria b. Fungi c. Virus d. Yeast

Last Answer : d. Yeast

Micro grafting is used to produce —- free plants a. Virus b. MLO c. Fungi d. Bacteria

Description : Micro grafting is used to produce —- free plants a. Virus b. MLO c. Fungi d. Bacteria

Last Answer : a. Virus

Foot and Mouth is a disease caused in cattle by __________. a) bacteria b)virus c)fungi d)none

Description : Foot and Mouth is a disease caused in cattle by __________. a) bacteria b)virus c)fungi d)none

Last Answer : b)virus

______ is microorganism that can be crystallized and kept in jar for many days. a) bacteria b)fungi c)virus d)protozoa

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

EBOLA is a – (a) Virus (b) Bacteria (c) Protozoa (d) Fungi

Description : EBOLA is a – (a) Virus (b) Bacteria (c) Protozoa (d) Fungi

Last Answer : (a) Virus  

Which of the following causes swine flu ? (1) Bacteria (2) Fungi (3) Tapeworm (4) Virus

Description : Which of the following causes swine flu ? (1) Bacteria (2) Fungi (3) Tapeworm (4) Virus

Last Answer : Virus

Which of the following organisms does not fit into the Cell Theory? (1) Bacteria (2) Virus (3) Fungi (4) Plants

Description : Which of the following organisms does not fit into the Cell Theory? (1) Bacteria (2) Virus (3) Fungi (4) Plants

Last Answer : Virus

Interferons are synthesized in response to (1) Bacteria (2) Fungi (3) Mycoplasma(4) Virus

Description : Interferons are synthesized in response to (1) Bacteria (2) Fungi (3) Mycoplasma(4) Virus

Last Answer : Virus

The casual organism of Polio is : (1) A fungi (2) A virus (3) A worm (4) A bacteria

Description : The casual organism of Polio is : (1) A fungi (2) A virus (3) A worm (4) A bacteria

Last Answer : A virus

What causes common cold ? (1) Bacteria (2) Fungi (3) Virus (4) Protozoa

Description : What causes common cold ? (1) Bacteria (2) Fungi (3) Virus (4) Protozoa

Last Answer : Virus

Penicillin is isolated from : (1) Fungi (2) Algae (3) Virus (4) Bacteria

Description : Penicillin is isolated from : (1) Fungi (2) Algae (3) Virus (4) Bacteria

Last Answer : Fungi

Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and laminated clays c) Soils containing carbon of coal underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Description : Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and ... underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Last Answer : a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering*

Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) Nitrification or oxidation of ammonia derived from breakdown of nitrogenous organic matter to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Description : Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in (A) Coagulation and flocculation of colloids (B) Oxidation of carbonaceous matter to CO2 (C) ... to the nitrite and eventually to the nitrate (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant liquid and gas can be used to produce energy. (2) The process occurs at a temperature above 430°C at atmospheric pressure. (3) The process occurs under high pressure at temperature above 430° C. (4) It is a thermo chemical decomposition of organic waste

Description : Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant liquid ... pressure at temperature above 430° C. (4) It is a thermo chemical decomposition of organic waste

Last Answer : (2) The process occurs at a temperature above 430°C at atmospheric pressure. Explanation: Pyrolysis is a thermo-chemical decomposition of organic material at elevated temperatures in the ... . Pyrolysis generally takes place well above atmospheric pressure at temperatures exceeding above 430 °C.

The biological decomposition of organic substances in wastes under controlled conditions known as - (1) composting (2) incineration (3) sanitary landfill (4) pyrolysis

Description : The biological decomposition of organic substances in wastes under controlled conditions known as - (1) composting (2) incineration (3) sanitary landfill (4) pyrolysis

Last Answer : (1) composting

Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Description : Fermentation is a process of decomposition of an organic compound by (1) catalysts (2) enzymes (3) carbanions (4) free radicals

Last Answer : (2) enzymes Explanation: Fermentation in food processing typically is the conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts, bacteria, or a combination there ... to lactic acid. Alcoholic fermentation follows the same enzymatic pathway for the first 10 steps.

Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) Decomposition of organic nitrogen and conversion of dinitrogen to ammonium compounds (c) Enteric fermentation in cattle and nitrogen fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Last Answer : (d) Anaerobic ammonium oxidation and denitrification

The biological decomposition of organic substances in wastes controlled conditions is called (A) Incineration (B) Biological oxidation(C) Composting(D) None of these

Description : The biological decomposition of organic substances in wastes controlled conditions is called (A) Incineration (B) Biological oxidation (C) Composting (D) None of these

Last Answer : (C) Composting

What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax.

Description : What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax.

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Description : What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax

Description : What is vermiculture? a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste d. Care and management of honey bees for the production of honey and wax

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Description : What is vermiculture? (Agriculture MCQ) a. Rearing of silkworms for production of silk b. Care and management of honey bees for the production of honey and wax. c. Cultivation of earthworms, for decomposition of organic waste

Last Answer : c. Cultivation of earthworms, for decomposition of organic waste

Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant liquid and gas can be used to produce energy. (2) The process occurs at a temperature above 430°C at atmospheric pressure. (3) The process occurs under high pressure at temperature above 430° C. (4) It is a thermochemical decomposition of organic waste

Description : Which one of the following statements about PYROLYSIS, which is a process for solid waste treatment is incorrect? (1) It converts the waste into solid, liquid and gas of which the resultant ... high pressure at temperature above 430° C. (4) It is a thermochemical decomposition of organic waste

Last Answer : The process occurs at a temperature above 430°C at atmospheric pressure.