Which of the following is bactericidal? A.Membrane filtrationB.Ionizing radiation C.Freeze-drying D.Deep freezing

Which of the following is bactericidal?
A.Membrane filtration
B.Ionizing radiation
C.Freeze-drying
D.Deep freezing
by

1 Answer

Answer :

onizing radiation
by

Related questions

Which of the following is bactericidal? A.Membrane filtration B.Ionizing radiation C.Freeze-drying D.Deep freezing

Description : Which of the following is bactericidal? A.Membrane filtration B.Ionizing radiation C.Freeze-drying D.Deep freezing

Last Answer : B.Ionizing radiation

When is ionizing radiation used to sterilize? a. To Sterilize Vitamins b. For Preserving Foods c. To Sterilize Hormones d. To Sterilize Antibiotics e. All The Above

Description : When is ionizing radiation used to sterilize? a. To Sterilize Vitamins b. For Preserving Foods c. To Sterilize Hormones d. To Sterilize Antibiotics e. All The Above

Last Answer : e. All The Above

Can neutrons ionizing radiation penetrate deep body tissue?

Description : Can neutrons ionizing radiation penetrate deep body tissue?

Last Answer : Need answer

In the process of freeze drying, a dense cell suspension is placed in small vials and is frozen at A- 60 to -78°C B- 20 to -30°C C- 30 to -48°C D- 48 to -58°C

Description : In the process of freeze drying, a dense cell suspension is placed in small vials and is frozen at A- 60 to -78°C B- 20 to -30°C C- 30 to -48°C D- 48 to -58°C

Last Answer : - 60 to -78°C

For bactericidal activity,__________ has/have the ability to cause thymine dimer formation. a. X rays b. B ultraviolet light a. Gamma Rays b. Microwaves

Description : For bactericidal activity,__________ has/have the ability to cause thymine dimer formation. a. X rays b. B ultraviolet light a. Gamma Rays b. Microwaves

Last Answer : b. B ultraviolet light

All the following terms apply to microbial killing except: a. Sterilization. b. Microbicidal. c. Bactericidal. d. Fungistatic.

Description : All the following terms apply to microbial killing except: a. Sterilization. b. Microbicidal. c. Bactericidal. d. Fungistatic.

Last Answer : d. Fungistatic

____ can destroy the microorganisms and inactivate enzymes. a. Radiation c. Drying b. Cooling d. Freezing

Description : ____ can destroy the microorganisms and inactivate enzymes. a. Radiation c. Drying b. Cooling d. Freezing

Last Answer : a. Radiation

Microorganism used as biological indicator for sterilization by ionizing radiations A Bacillus subtilis B Bacillus pumilus C Salmonella typhi D Serratia marcescens

Description : Microorganism used as biological indicator for sterilization by ionizing radiations A Bacillus subtilis B Bacillus pumilus C Salmonella typhi D Serratia marcescens

Last Answer : B Bacillus pumilus

Pick out the wrong statement: (A) Reboiler is not used in open steam distillation (B) The separation of solutes of different molecular sizes in a liquid solution by use of a suitable membrane is called dialysis (C) Freeze drying is used for the drying of fish (D) Fenske-Underwood equation is used for calculating theoretical number of plates in a distillation column at normal operating reflux condition

Description : Pick out the wrong statement: (A) Reboiler is not used in open steam distillation (B) The separation of solutes of different molecular sizes in a liquid solution by use of a ... is used for calculating theoretical number of plates in a distillation column at normal operating reflux condition

Last Answer : (D) Fenske-Underwood equation is used for calculating theoretical number of plates in a distillation column at normal operating reflux condition

Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Description : Bactericidal action of aminoglycoside antibiotics is due to: A. Inhibition of bacterial protein synthesis B. Alteration of bacterial cell membrane permeability C. Damage to bacterial cell wall D. Inhibition of bacterial oxidative metabolism

Last Answer : B. Alteration of bacterial cell membrane permeability

Is the radiation from a tanning bed, Ionizing or Non-Ionizing?

Description : Is the radiation from a tanning bed, Ionizing or Non-Ionizing?

Last Answer : answer:Tanning beds are health risks because of ultraviolet (uv) radiation, which is definitely ionizing. This means the photons have enough energy to break chemical bonds in skin molecules. If this ... might somehow lead to cancer, though they emphasize there's no actual evidence of a link.

Is radiation dermatitis or radio dermatitis only caused from ionizing radiation?

Description : Is radiation dermatitis or radio dermatitis only caused from ionizing radiation?

Last Answer : answer:My guess would be yes. As many as 95% of patients receiving radiation therapy for cancer treatment will have some form of skin eruption due to the radiation. High frequency ultraviolet, X-rays and ... ionizing. I will have to leave it to one of the doctors here to discus the biopsy issue.

If UV-C helps create ozone layer and converts Oxygen to O-3. Then why isn't it called ionizing radiation?

Description : If UV-C helps create ozone layer and converts Oxygen to O-3. Then why isn't it called ionizing radiation?

Last Answer : answer:In general, Ionizing radiation uses alpha, beta or gamma particles In general , Non ionizing radiation is electomagnetic waves like radio waves, light, thermal UV-C is considered right at the ... consider anything less than 100 nm ionizing . The EPA has a handy chart discussing this.

Is ionizing radiation always harmful? -Physics

Description : Is ionizing radiation always harmful? -Physics

Last Answer : No, ionizing radiation is only harmful to an organism as a whole when its amount gets too high. We are constantly bombarded with very small amounts of ionizing radiation that occur naturally, ... and function, but damage to the genes causes the cells to pursue aggressive and uncontrolled growth.

As a general rule, ionizing radiation is most damaging to

Description : As a general rule, ionizing radiation is most damaging to

Last Answer : As a general rule, ionizing radiation is most damaging to A. Mature, stable cells B. Actively ... specialized cells D. Cells in which food is stored

What is photon ionizing radiation?

Description : What is photon ionizing radiation?

Last Answer : Need answer

UV light falls in the category of------? A. Ionizing Radiations (Answer) B. Non Ionizing Radiation C. Visible light D. None

Description : UV light falls in the category of------? A. Ionizing Radiations (Answer) B. Non Ionizing Radiation C. Visible light D. None

Last Answer : A. Ionizing Radiations (Answer)

What is the greatest disadvantage of radiographic inspection? a) the inability to size defects accurately b) The physical size of the equipment c) The skill level of the operator d) The harmful effects of ionizing radiation

Description : What is the greatest disadvantage of radiographic inspection? a) the inability to size defects accurately b) The physical size of the equipment c) The skill level of the operator d) The harmful effects of ionizing radiation

Last Answer : d) The harmful effects of ionizing radiation

What is Recklinghausen disease: A. Neurofibromatosis B. Necrosis of bone produced by ionizing radiation

Description : What is Recklinghausen disease: A. Neurofibromatosis B. Necrosis of bone produced by ionizing radiation

Last Answer : A. Neurofibromatosis

Microwave radiation is often called ____ radiation. a. ionizing c. electrical b. nonionizing d. magnetic

Description : Microwave radiation is often called ____ radiation. a. ionizing c. electrical b. nonionizing d. magnetic

Last Answer : b. nonionizing

Of the following, the most energetic form of NON-IONIZING radiation is: w) ultra-violet light x) infra-red light y) radar z) microwaves

Description : Of the following, the most energetic form of NON-IONIZING radiation is: w) ultra-violet light x) infra-red light y) radar z) microwaves

Last Answer : ANSWER: W -- ULTRA-VIOLET LIGHT

In the United States, the units of measure for the potential biological risk associated with exposure to ionizing radiation are the rem and millirem. What comparable units are used in the metric system?

Description : In the United States, the units of measure for the potential biological risk associated with exposure to ionizing radiation are the rem and millirem. What comparable units are used in the metric system?

Last Answer : ANSWER: SIEVERTS or MILLISIEVERTS

The National Council on Radiation Protection and Measurements estimates that the average exposure to ionizing radiation tha individual Americans receive annually from ALL sources is about: w) 60 millirem x) 100 millirem y) 360 millirem z) 500 millirem

Description : The National Council on Radiation Protection and Measurements estimates that the average exposure to ionizing radiation tha individual Americans receive annually from ALL sources is about: w) 60 millirem x) 100 millirem y) 360 millirem z) 500 millirem

Last Answer : ANSWER: Y -- 360 MILLIREM

The U.S. population receives the largest dose of ionizing radiation from: w) natural sources. x) fallout from nuclear weapons testing. y) nuclear medicine. z) nuclear power plants.

Description : The U.S. population receives the largest dose of ionizing radiation from: w) natural sources. x) fallout from nuclear weapons testing. y) nuclear medicine. z) nuclear power plants.

Last Answer : ANSWER: W -- NATURAL SOURCES.

Which of the following bacteria dies quickly after drying? A.Treponemapallidium B.Mycobacterium tuberculosis C.Staphylococcusaureus D.Pseudomonasaeruginosa

Description : Which of the following bacteria dies quickly after drying? A.Treponemapallidium B.Mycobacterium tuberculosis C.Staphylococcusaureus D.Pseudomonasaeruginosa

Last Answer : A.Treponemapallidium

Which of the following bacteria dies quickly after drying? A- .Treponema palladium B- Mycobacterium tuberculosis C- Staphylococcus aureus D- Pseudomonas aeruginosa

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

Bacterial species in fish are naturally adapted to the cold environment in which most fish live and thus, _____ will not affect them; _____ is preferred. a. heating, cooking b. cooling, refrigeration c. warming, boiling d. cooling, freezing

Description : Bacterial species in fish are naturally adapted to the cold environment in which most fish live and thus, _____ will not affect them; _____ is preferred. a. heating, cooking b. cooling, refrigeration c. warming, boiling d. cooling, freezing

Last Answer : d. cooling, freezing

A thermal process mostly used for vegetables prior to freezing, drying, or canning in order to soften the texture.

Description : A thermal process mostly used for vegetables prior to freezing, drying, or canning in order to soften the texture.

Last Answer : Ans. Blanching

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

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

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

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

Mechanism of moisture removal in case of freeze drying of food stuff is by (A) Evaporation (B) Sublimation (C) Dehydration (D) Adsorption

Description : Mechanism of moisture removal in case of freeze drying of food stuff is by (A) Evaporation (B) Sublimation (C) Dehydration (D) Adsorption

Last Answer : (B) Sublimation

In freeze- drying, water is removed from the product by a. Evaporation b. Sublimation c. Transpiration d. None of these

Description : In freeze- drying, water is removed from the product by a. Evaporation b. Sublimation c. Transpiration d. None of these

Last Answer : b. Sublimation

Common salt is generally not produced commonly by __________ method from brine. (A) Freeze drying (B) Electrolytic (C) Solar evaporation (D) Vacuum evaporation

Description : Common salt is generally not produced commonly by __________ method from brine. (A) Freeze drying (B) Electrolytic (C) Solar evaporation (D) Vacuum evaporation

Last Answer : (A) Freeze drying

Good quality of edible salt is obtained from brine by the process of (A) Solar evaporation (B) Vacuum evaporation (C) Freeze drying (D) Electrolysis

Description : Good quality of edible salt is obtained from brine by the process of (A) Solar evaporation (B) Vacuum evaporation (C) Freeze drying (D) Electrolysis

Last Answer : (B) Vacuum evaporation

Common salt is produced from sea water in India generally by the __________ method. (A) Freeze drying (B) Solar evaporation (C) Electrolytic (D) None of these

Description : Common salt is produced from sea water in India generally by the __________ method. (A) Freeze drying (B) Solar evaporation (C) Electrolytic (D) None of these

Last Answer : B) Solar evaporation

The most common drying method is ____ drying. a. freeze- c. spray b. sun or tray drying d. oven

Description : The most common drying method is ____ drying. a. freeze- c. spray b. sun or tray drying d. oven

Last Answer : c. spray

Explain The theory of freeze drying and state its application.

Description : Explain The theory of freeze drying and state its application.

Last Answer : Theory:-  i) In this process, the material is frozen in a suitable container connected to a high vacuum system, so that the vapour pressure of water vapours is ... antibiotics, blood products, vaccines, enzymes preparation, microbiological cultures & other thermo labile pharmaceutical substances.

Explain principle of freeze drying. Give its advantages.

Description : Explain principle of freeze drying. Give its advantages.

Last Answer : Principle:  i. The material is frozen in a suitable container connected to a high vacuum system, so that the vapour pressure of water is reduced to less than that of material being dried. ii. ... it is properly sealed in an inert atmosphere. vii. The sterility of the product can be maintained. 

Give application of freeze drying.

Description : Give application of freeze drying.

Last Answer : (i) The process is mainly used for drying of biological products such as antibiotics, blood products, vaccines ,enzymes preparation, microbiological cultures etc. (ii) The heat sensitive material can be dried

Discuss the theory, construction, and working of freeze drying apparatus

Description : Discuss the theory, construction, and working of freeze drying apparatus

Last Answer : Theory: Freeze drying or sublimation drying consists of simply reducing the temperature & pressure to values below the triple point .(4.579mm of Hg& temp. of 0.0099 c) Under these ... . 5. Packing: Biological products are dried packed in aseptic condition immediately after drying.

Discuss in brief Freeze drying.

Description : Discuss in brief Freeze drying.

Last Answer : Principle:  The material is frozen in a suitable container connected to a high vacuum system, so that the vapour pressure of water is reduced to less than that of material being dried. Thus, it ... special precautions. 3. The period of drying is quite long.(usually not less than 10 hours)  

Is it better to freeze raw, or to cook/overcook before freezing to keep food from spoiling too soon?

Description : Is it better to freeze raw, or to cook/overcook before freezing to keep food from spoiling too soon?

Last Answer : It totally depends on the food and if it was frozen before. Even different vegetables react differently to freezing, so it isn't a one solution fits all' situation. Your question, as it is ... . It is freezer burn, crystallisation and bitterness. You need to blanch almost every vegetable, not cook.

When freezing fresh purple hull peas for later, is it better to freeze them in water or freeze them dry? water

Description : When freezing fresh purple hull peas for later, is it better to freeze them in water or freeze them dry? water

Last Answer : Need Answer

How long does the temp have to be below freezing to freeze the roots of large plants?

Description : How long does the temp have to be below freezing to freeze the roots of large plants?

Last Answer : cause yo are dumb

How long does the temp have to be below freezing to freeze the roots of large plants?

Description : How long does the temp have to be below freezing to freeze the roots of large plants?

Last Answer : cause yo are dumb

When water is filled in a bottle and is allowed to freeze, the bottle breaks because _____? A. Water expands on freezing B. Bottle contracts at freezing point C. Temperature outside the bottle is less than that inside the bottle D. None of them

Description : When water is filled in a bottle and is allowed to freeze, the bottle breaks because _____? A. Water expands on freezing B. Bottle contracts at freezing point C. Temperature outside the bottle is less than that inside the bottle D. None of them

Last Answer : ANSWER: A

A lake starts freezing because of the cold atmosphere, It will first freeze A. At the bottom B. In the middle part C. At the top surface D. Uniformly throughout the water body

Description : A lake starts freezing because of the cold atmosphere, It will first freeze A. At the bottom B. In the middle part C. At the top surface D. Uniformly throughout the water body

Last Answer : ANSWER: C

If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water

Description : If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water

Last Answer : Ans:(b)

When water is filled in a bottle and is allowed to freeze, the bottle breaks because A. Water expands on freezing (Answer) B. Bottle contracts at freezing point C. temperature outside the bottle is less than that inside the bottle. D. None of the above

Description : When water is filled in a bottle and is allowed to freeze, the bottle breaks because A. Water expands on freezing (Answer) B. Bottle contracts at freezing point C. temperature outside the bottle is less than that inside the bottle. D. None of the above

Last Answer : A. Water expands on freezing (Answer)

A lake starts freezing because of the cold atmosphere. It will first freeze A. At the bottom B. ln the middle pan C. At the top surface (Answer) D. Uniformly throughout the water body

Description : A lake starts freezing because of the cold atmosphere. It will first freeze A. At the bottom B. ln the middle pan C. At the top surface (Answer) D. Uniformly throughout the water body

Last Answer : C. At the top surface (Answer)