What is the Solidifying temp and melting temp of agar?

What is the Solidifying temp and melting temp of agar?
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Agar is used for solidifying culture media because A-it does not affect by the growth of bacteria B-it does not add to the nutritive properties of the medium C-the melting and solidifying points of agar solution are not the same D-all of the above

Description : Agar is used for solidifying culture media because A-it does not affect by the growth of bacteria B-it does not add to the nutritive properties of the medium C-the melting and solidifying points of agar solution are not the same D-all of the above

Last Answer : all of the above

The solidifying agent commonly used in preparation of media is/are A-agar B-silica gel C-both (a) and (b) D-none of these

Description : The solidifying agent commonly used in preparation of media is/are A-agar B-silica gel C-both (a) and (b) D-none of these

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Description : What is the melting temp for sucrose?

Last Answer : Sucrose is thermally decomposed after 186 oC.

Where would you expect lava solidifying into basalt?

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In regard to indirect compared to direct wax technique, what characteristics must the wax have:** A. Low temperature solidifying point B. Hard in room temperature C. Higher flow in room temperature

Description : In regard to indirect compared to direct wax technique, what characteristics must the wax have:** A. Low temperature solidifying point B. Hard in room temperature C. Higher flow in room temperature

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The contraction of gold alloys on solidifying is approximately: A. 0.5% B. 2.5% C. 1.40% D. 3%

Description : The contraction of gold alloys on solidifying is approximately: A. 0.5% B. 2.5% C. 1.40% D. 3%

Last Answer : C. 1.40%

Why isn't agar agar more popular?

Description : Why isn't agar agar more popular?

Last Answer : I think it depends on people's preferences in each country. What I can say is that agar agar is not really as popular as jelly/jello(less commercialized) even though we discover it first. I myself, ... it's smoother and less chemical than jelly. And yes,I really hate the rubberiness' of jelly.

What is agar-agar? -Biology

Description : What is agar-agar? -Biology

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$ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar agar is a polysaccharides formed of many galactose monomers.

Description : $ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar agar is a polysaccharides formed of many galactose monomers.

Last Answer : $ Agar-agar is a carbohydrate obtained from some sea weeds. ! Agar agar is a polysaccharides formed of many ... wrong D. If both As and R are wrong.

Name the two algae from which agar is obtained.

Description : Name the two algae from which agar is obtained.

Last Answer : Name the two algae from which agar is obtained.

If a person wants to obtain agar for tissue culture, which plant group he should search?

Description : If a person wants to obtain agar for tissue culture, which plant group he should search?

Last Answer : If a person wants to obtain agar for tissue culture, which plant group he should search?

Why would bacteria not grow on an agar plate treated with a disinfectant?

Description : Why would bacteria not grow on an agar plate treated with a disinfectant?

Last Answer : What is the answer ?

Why is blood agar useful as a primary isolation medium?

Description : Why is blood agar useful as a primary isolation medium?

Last Answer : What is the answer ?

What would happen to plate poured with agar that is too hot or cool?

Description : What would happen to plate poured with agar that is too hot or cool?

Last Answer : We Wouldn't Survive

Is blood agar selective or differential?

Description : Is blood agar selective or differential?

Last Answer : Blood agar is a differential media since you can differentiate between different organisms based on the colony appearance. In a blood agar you are looking for hemolysis.

Iodine test is positive for starch, dextrin and (A) Mucoproteins (B) Agar (C) Glycogen (D) Cellulose

Description : Iodine test is positive for starch, dextrin and (A) Mucoproteins (B) Agar (C) Glycogen (D) Cellulose

Last Answer : C

Which of the following is a heteroglycan? (A) Dextrins (B) Agar (C) Inulin (D) Chitin

Description : Which of the following is a heteroglycan? (A) Dextrins (B) Agar (C) Inulin (D) Chitin

Last Answer : B

The polysaccharide used in assessing the glomerular fittration rate (GFR) is (A) Glycogen (B) Agar (C) Inulin (D) Hyaluronic acid CARBOHYDRATES AND CARBOHYDRATE METABOLISM 7

Description : The polysaccharide used in assessing the glomerular fittration rate (GFR) is (A) Glycogen (B) Agar (C) Inulin (D) Hyaluronic acid CARBOHYDRATES AND CARBOHYDRATE METABOLISM 7

Last Answer : C

The homopo lysacchar ide used for intravenous infusion as plasma substitute is (A) Agar (B) Inulin (C) Pectin (D) Starch

Description : The homopo lysacchar ide used for intravenous infusion as plasma substitute is (A) Agar (B) Inulin (C) Pectin (D) Starch

Last Answer : A

Which of the following is a reducing sugar? (A) Sucrose (B) Trehalose (C) Isomaltose (D) Agar

Description : Which of the following is a reducing sugar? (A) Sucrose (B) Trehalose (C) Isomaltose (D) Agar

Last Answer : C

The major constituents in agar are a. Fats b. Aminoacids c. Polysaccharides d. Polypeptides

Description : The major constituents in agar are a. Fats b. Aminoacids c. Polysaccharides d. Polypeptides

Last Answer : Ans: C

Example of anaerobic medium a. Wilson blair medium b. Mac conkey broth c. Robertson’s cooked meat medium d. EMB agar

Description : Example of anaerobic medium a. Wilson blair medium b. Mac conkey broth c. Robertson’s cooked meat medium d. EMB agar

Last Answer : Ans: C

Vegetable oils are converted into solid fat (ghee) by - (1) Hydrolysis (2) Addition of agar (3) Oxidation using air and a catalyst (4) Hydrogenation

Description : Vegetable oils are converted into solid fat (ghee) by - (1) Hydrolysis (2) Addition of agar (3) Oxidation using air and a catalyst (4) Hydrogenation

Last Answer : (4) Hydrogenation Explanation: Hydrogenation - to treat with hydrogen - is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a ... oils are derived from polyunsaturated fatty acids (containing more than one carbon-carbon double bonds).

Which of the following is one of the commercial products obtained from Gelidium and Gracilaria and are used to grow microbes and in preparations of icecreams and jellies? (1) Agar (2) Chlorella (3) Spirullina (4) Gymnosperms

Description : Which of the following is one of the commercial products obtained from Gelidium and Gracilaria and are used to grow microbes and in preparations of icecreams and jellies? (1) Agar (2) Chlorella (3) Spirullina (4) Gymnosperms

Last Answer : (1) Agar Explanation: Agar, one of the commercial products obtained from Gelidium and Gracilaria are used to grow microbes and in preparations of ice-creams and jellies.

Newcastle disease virus can be propagated B A. on Nutrient agar B. Chicken embryo C. In broth D. None of these

Description : Newcastle disease virus can be propagated B A. on Nutrient agar B. Chicken embryo C. In broth D. None of these

Last Answer : Chicken embryo

Most commonly employed test for determining the antibody titers for Newcastle disease infection in B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

Description : Most commonly employed test for determining the antibody titers for Newcastle disease infection in B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

Last Answer : Hemagglutination inhibition

Most commonly employed test for determining the antibody titers for AI infection is B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

Description : Most commonly employed test for determining the antibody titers for AI infection is B A. Agar gel precipitation test B. Hemagglutination inhibition C. Polymerase chain reaction D. None of these

Last Answer : Hemagglutination inhibition

Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when pla(a) It made possible the isolation and exact identification of auxin. (b) It is the basis for quantitative determination of small amounts of growth-promoting substances. (c) It supports the hypothesis that IAA is auxin. (d) It demonstrated polar movement of auxinsced on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?

Description : Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what ... . (c) It supports the hypothesis that IAA is auxin. (d) It demonstrated polar movement of auxins

Last Answer : (a) It made possible the isolation and exact identification of auxin.

Which one of the following statements is wrong? (a) Chlorella and Spirulina are used as space food. (b) Mannitol is stored food in Rhodophyceae. (c) Algin and carrageenan are products of algae. (d) Agar-agar is obtained from Gelidium and Gracilaria.

Description : Which one of the following statements is wrong? (a) Chlorella and Spirulina are used as space food. (b) Mannitol is stored food in Rhodophyceae. (c) Algin and carrageenan are products of algae. (d) Agar-agar is obtained from Gelidium and Gracilaria.

Last Answer : (b) Mannitol is stored food in Rhodophyceae.

Which one of the following statements is wrong? (a) Algae increase the level of dissolved oxygen in the immediate environment. (b) Algin is obtained from red algae, and carrageenan from brown algae. (c) Agar-agar is obtained from Gelidium and Gracilaria. (d) Laminaria and Sargassum are used as food.

Description : Which one of the following statements is wrong? (a) Algae increase the level of dissolved oxygen in the immediate environment. (b) Algin is obtained from red algae, and carrageenan from brown ... Agar-agar is obtained from Gelidium and Gracilaria. (d) Laminaria and Sargassum are used as food.

Last Answer : (b) Algin is obtained from red algae, and carrageenan from brown algae

A paper disc or small cylinder containing antibiotic is used in the antibiotic sensitivity assay known as the a. Tube dilution method. b. Immunodiffusion method. c. Agar diffusion method. d. Passive detection method.

Description : A paper disc or small cylinder containing antibiotic is used in the antibiotic sensitivity assay known as the a. Tube dilution method. b. Immunodiffusion method. c. Agar diffusion method. d. Passive detection method.

Last Answer : c. Agar diffusion method.

The is used to determine an antibiotic‘s minimal inhibitory concentration (NEC). a. Ames test b. tube dilution method c. agar disk diffusion method d. Kirby-Bauer test

Description : The is used to determine an antibiotic‘s minimal inhibitory concentration (NEC). a. Ames test b. tube dilution method c. agar disk diffusion method d. Kirby-Bauer test

Last Answer : b. tube dilution method

Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture

Description : Viruses can be grown on _____. a. nutrient agar b. nutrient broth c. blood agar d. tissue culture

Last Answer : d. tissue culture

The concentration of agar to obtain semi solid media is A- 1.5-20%B- 0.5% or less C- >10% D- 10%but<20%

Description : The concentration of agar to obtain semi solid media is A- 1.5-20%B- 0.5% or less C- >10% D- 10%but

Last Answer : 0.5% or less

.Bacteria having no flagella are unable to A- move B- reproduce C- stick to tissue surfaces D- grow in nutrient agar

Description : .Bacteria having no flagella are unable to A- move B- reproduce C- stick to tissue surfaces D- grow in nutrient agar

Last Answer : move

Which one of the following is NOT part of the streak-plate method? a. Making four sets of streaks on a plate. b. Diluting a mixed culture in molten agar. c. Using a mixed culture. d. Using a sterilized loop.

Description : Which one of the following is NOT part of the streak-plate method? a. Making four sets of streaks on a plate. b. Diluting a mixed culture in molten agar. c. Using a mixed culture. d. Using a sterilized loop.

Last Answer : b. Diluting a mixed culture in molten agar.

Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Description : Mark the INCORRECT statement about agar, a gelling agent in plant tissue culture medium a. Not digested by plant enzymes b. It does not use in micro-propagation work c. It does not react with media constituents d. Remain stable at incubation temperature

Last Answer : b. It does not use in micro-propagation work

Agar – Agar is obtained from – (a) Fungi (b) Algae (c) Moss (d) Bacteria

Description : Agar – Agar is obtained from – (a) Fungi (b) Algae (c) Moss (d) Bacteria

Last Answer : (b) Algae 

Vegetable oils are converted into solid fat (ghee) by (1) Hydrolysis (2) Addition of agar (3) Oxidation using air and a catalyst (4) Hydrogenation

Description : Vegetable oils are converted into solid fat (ghee) by (1) Hydrolysis (2) Addition of agar (3) Oxidation using air and a catalyst (4) Hydrogenation 

Last Answer : Hydrogenation

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