Did change in pH in the biological materials respond more like the water or the phosphate buffer Explain?

Did change in pH in the biological materials respond more like the water or the phosphate buffer Explain?
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In a solution containing phosphate buffer, the pH will be 7.4, if the ratio of monohydrogen phosphate : dihydrogen phosphate is (A) 4 : 1 (B) 5 : 1 (C) 10 : 1 (D) 20 : 1

Description : In a solution containing phosphate buffer, the pH will be 7.4, if the ratio of monohydrogen phosphate : dihydrogen phosphate is (A) 4 : 1 (B) 5 : 1 (C) 10 : 1 (D) 20 : 1

Last Answer : Answer : A

A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution. (A) Neutral (B) Ideal (C) Buffer (D) Zero pH

Description : A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution. (A) Neutral (B) Ideal (C) Buffer (D) Zero pH

Last Answer : Option C

Quantitatively, the most significant buffer system in plasma is (A) Phosphate buffer system (B) Carbonic acid-bicarbonate buffer system (C) Lactic acid-lactate buffer system (D) Protein buffer system

Description : Quantitatively, the most significant buffer system in plasma is (A) Phosphate buffer system (B) Carbonic acid-bicarbonate buffer system (C) Lactic acid-lactate buffer system (D) Protein buffer system

Last Answer : Answer : B

Important buffer system of extracellular fluid is (A) Bicarbonate/carbonic acid (B) Disodium hydrogen phosphate/sodium dihydrogen phosphate (C) Plasma proteins (D) Organic Phosphate

Description : Important buffer system of extracellular fluid is (A) Bicarbonate/carbonic acid (B) Disodium hydrogen phosphate/sodium dihydrogen phosphate (C) Plasma proteins (D) Organic Phosphate

Last Answer : Answer : A

The main physiological buffer in the blood is (A) Haemoglobin buffer (B) Acetate (C) Phosphate (D) Bicarbonate

Description : The main physiological buffer in the blood is (A) Haemoglobin buffer (B) Acetate (C) Phosphate (D) Bicarbonate

Last Answer : Answer : D

The pH of body fluids is stabilized by buffer systems. The compound which will be the most effective buffer at physiologic pH is (A) Na2HPO4 pKa = 12.32 (B) Na2HPO4 pKa=7.21 (C) NH4OH pKa = 7.24 (D) Citric acid pKa = 3.09

Description : The pH of body fluids is stabilized by buffer systems. The compound which will be the most effective buffer at physiologic pH is (A) Na2HPO4 pKa = 12.32 (B) Na2HPO4 pKa=7.21 (C) NH4OH pKa = 7.24 (D) Citric acid pKa = 3.09

Last Answer : Answer : B

Which one of the amino acids could serve as the best buffer at pH 7? (A) Glutamic acid (B) Arginine (C) Valine (D) Histidine

Description : Which one of the amino acids could serve as the best buffer at pH 7? (A) Glutamic acid (B) Arginine (C) Valine (D) Histidine

Last Answer : Answer : D

PH is the negative logarithm of the hydrogen Ion Concentration express4ed in moles/liter of aqueous solution. PH of buffer solution is calculated by. Henderson’s equation Name the best indicator Phenolphthalein, PH range 8.3 to 10.0 Chemical kinetics deals with study of. Rates and mechanisms of chemical and Biochemical reactions

Description : PH is the negative logarithm of the hydrogen Ion Concentration express4ed in moles/liter of aqueous solution. PH of buffer solution is calculated by. Henderson's equation Name the best ... Chemical kinetics deals with study of. Rates and mechanisms of chemical and Biochemical reactions

Last Answer : What does Thermodynamics helps in predicting ?

The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the mouth pH and it has an important role of having IgA antibodies (also present in tears, colostrum, mother’s milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.

Description : The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the ... 's milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.

Last Answer : What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food?

Discuss the factors on which buffer PH depends.

Description : Discuss the factors on which buffer PH depends.

Last Answer : PH of buffer depends upon two factors. (i) Pka or ka value of an acid (ii) Concentration of salt and acid taken for the buffer.

Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

Description : Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

Last Answer : these give unionised acid or base on reaction with added acid or alkali

Buffer solutions show which one of the following traits: w) absorb acid and base with only small changes in pH x) indefinite stability y) high elasticity z) abnormal density

Description : Buffer solutions show which one of the following traits: w) absorb acid and base with only small changes in pH x) indefinite stability y) high elasticity z) abnormal density

Last Answer : ANSWER: W -- ABSORB ACID AND BASE WITH ONLY SMALL CHANGES IN pH

Homeostasis is (a) tendency of biological systems to change with change in environment (b) tendency of biological systems to resist change (c) disturbance of self regulatory system and natural controls (d) biotic materials used in homeopathic medicines.

Description : Homeostasis is (a) tendency of biological systems to change with change in environment (b) tendency of biological systems to resist change (c) disturbance of self regulatory system and natural controls (d) biotic materials used in homeopathic medicines.

Last Answer : (b) tendency of biological systems to resist change

Corrosion in boilers can be prevented by (A) Deaeration of feed water (B) Enhancing pH of feed water by adding alkali (C) Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion (D) All (A), (B) and (C)

Description : Corrosion in boilers can be prevented by (A) Deaeration of feed water (B) Enhancing pH of feed water by adding alkali (C) Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion (D) All (A), (B) and (C)

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

Water pollution can be identified by testing its A. PH level B. Biological Oxygen Demand (BOD) C. Both (a) and (b) D. None of these.

Description : Water pollution can be identified by testing its A. PH level B. Biological Oxygen Demand (BOD) C. Both (a) and (b) D. None of these.

Last Answer : C. Both (a) and (b)

Water pollution can be identified by testing its A. PH level B. Biological Oxygen Demand (BOD) C. Both (a) and (b) D. None of these.

Description : Water pollution can be identified by testing its A. PH level B. Biological Oxygen Demand (BOD) C. Both (a) and (b) D. None of these.

Last Answer : C. Both (a) and (b)

What prevents extremes of pH in biological systems? a. acid b. bases c. buffers d. neutrons

Description : What prevents extremes of pH in biological systems? a. acid b. bases c. buffers d. neutrons

Last Answer : c. buffers

ater pollution can be identified by testing its A. PH level B. Biological Oxygen Demand (BOD) C. Both (a) and (b) D. None of these.

Description : ater pollution can be identified by testing its A. PH level B. Biological Oxygen Demand (BOD) C. Both (a) and (b) D. None of these.

Last Answer : C. Both (a) and (b)

Active transport of a substance across biological membranes has the following characteristics except: A. It is specific B. It is pH dependent C. It is saturable D. It requires metabolic energy

Description : Active transport of a substance across biological membranes has the following characteristics except: A. It is specific B. It is pH dependent C. It is saturable D. It requires metabolic energy

Last Answer : B. It is pH dependent

Active transport of a substance across biological membranes has the following characteristics except: A. It is specific B. It is pH dependent C. It is saturable D. It requires metabolic energy

Description : Active transport of a substance across biological membranes has the following characteristics except: A. It is specific B. It is pH dependent C. It is saturable D. It requires metabolic energy

Last Answer : B. It is pH dependent

The chemical used in enabalining biological materials is – (1) formaldehyde in water (2) formaldehyde in methanol (3) ethylene glycol (4) gaseous formaldehyde

Description : The chemical used in enabalining biological materials is – (1) formaldehyde in water (2) formaldehyde in methanol (3) ethylene glycol (4) gaseous formaldehyde

Last Answer : (1) formaldehyde in water Explanation: Embalming fluids use formaldehyde as a preservative. Formaldehyde is the simplest aldehyde with the chemical formula HCHO. Formalin is a solution of formaldehyde ... based embalming fluids are much kinder to the environment than those used in previous years.

Radioactive substances present in the polluted water stream can be removed by (A) Biological oxygen treatment (B) Coagulation and filtration (C) Adsorption in ion exchange materials (D) None of these

Description : Radioactive substances present in the polluted water stream can be removed by (A) Biological oxygen treatment (B) Coagulation and filtration (C) Adsorption in ion exchange materials (D) None of these

Last Answer : (C) Adsorption in ion exchange materials

The chemical used in embalming biological materials is (1) formaldehyde in water (2) formaldehyde in methanol (3) ethylene glycol (4) gaseous formaldehyde

Description : The chemical used in embalming biological materials is (1) formaldehyde in water (2) formaldehyde in methanol (3) ethylene glycol (4) gaseous formaldehyde

Last Answer : formaldehyde in water

Frequently employed materials for the adsorption chromatography of proteins include (A) High capacity supporting gel (B) Starch blocks (C) Calcium phosphate gel alumina gel and hydroxy apatite (D) All of these

Description : Frequently employed materials for the adsorption chromatography of proteins include (A) High capacity supporting gel (B) Starch blocks (C) Calcium phosphate gel alumina gel and hydroxy apatite (D) All of these

Last Answer : Answer : C

In calculus formation, the epitaxic concept is one of the theories. Which of the following is true: a. Mineralisation occurs when calcium and phosphate content is high. b. The presence of matrix would start initial formation of nucleus. c. The amorphous materials would convert to calcium phosphate and hydroxy phosphate.

Description : In calculus formation, the epitaxic concept is one of the theories. Which of the following is true: a. Mineralisation occurs when calcium and phosphate content is high. b. The presence of ... of nucleus. c. The amorphous materials would convert to calcium phosphate and hydroxy phosphate.

Last Answer : b. The presence of matrix would start initial formation of nucleus.

In calculus formation the epitaxic concept is one of the theories. Which of the following is true: A. Mineralisation occurs when calcium and phosphate content is high B. The presence of matrix would initiate the formation of the nucleus C. The amorphous materials would convert to calcium phosphate and hydroxy

Description : In calculus formation the epitaxic concept is one of the theories. Which of the following is true: A. Mineralisation occurs when calcium and phosphate content is high B. The presence of ... the formation of the nucleus C. The amorphous materials would convert to calcium phosphate and hydroxy

Last Answer : B. The presence of matrix would initiate the formation of the nucleus

.The most resistant filling materials to fill class IV cavities are: A. Resins with silicone dioxide (SiO2) B. Resins with glass or quartz C. Silico-phosphate D. Silicates

Description : .The most resistant filling materials to fill class IV cavities are: A. Resins with silicone dioxide (SiO2) B. Resins with glass or quartz C. Silico-phosphate D. Silicates

Last Answer : B. Resins with glass or quartz

What are the methods of treatment & disposal of radioactive wastes? (A) Evaporation & chemical precipitation (B) Biological methods & adsorption in ion exchange materials (C) Fixing into a solid mass with cement and sinking deep in the sea (D) All (A), (B) & (C)

Description : What are the methods of treatment & disposal of radioactive wastes? (A) Evaporation & chemical precipitation (B) Biological methods & adsorption in ion exchange materials (C) Fixing into a solid mass with cement and sinking deep in the sea (D) All (A), (B) & (C)

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

Describe the identification methods of blood? Forensic significance of biological materials.

Description : Describe the identification methods of blood? Forensic significance of biological materials.

Last Answer : The Forensics of Blood  After a homicide or an assault has been committed, police investigators usually find blood at the scene of the crime, giving them clues as to what happened. The blood ... then be compared to DNA profiles obtained from reference standards or from other items of evidence. 

Why water is a very efficient thermal buffer?

Description : Why water is a very efficient thermal buffer?

Last Answer : Water has a high heat capacity, which can be described as"thermal inertia". That means that water can absorb a large amountof heat energy.

Why does it take so long for the midwest to respond to change?

Description : Why does it take so long for the midwest to respond to change?

Last Answer : answer:How do you know that NYC and SF are not experiencing an accelerated rate of decadence? Answer; You don’t. But it is certainly possible. So why make an assumption that has about a 50% chance of being correct?

Regarding close friendships, how do you react / respond to change?

Description : Regarding close friendships, how do you react / respond to change?

Last Answer : answer:I've never had a problem with frequency of contact with friends, be them close or not. Life can be complicated and busy. If I want to know how someone is doing I contact them. If I want to see them I ... or hear from for months and then we meet and we have a lot to catch up on. That is nice.

How do leopards sense and respond to change?

Description : How do leopards sense and respond to change?

Last Answer : Feel Free to Answer

The smallest change in a measured variable to which an instrument will respond.

Description : The smallest change in a measured variable to which an instrument will respond.

Last Answer : resolution

Why can't Mg(OH)2 act as a buffer?

Description : Why can't Mg(OH)2 act as a buffer?

Last Answer : http://www.jiskha.com/display.cgi?id=1427999118

Is it a waste of time to wait for 1080p video to buffer if your laptop has a1366x738 resolution?

Description : Is it a waste of time to wait for 1080p video to buffer if your laptop has a1366x738 resolution?

Last Answer : answer:Either your monitor or your video player will be down-rez'ing the 1080p version to fit your screen if you use the 1080p version. Why not let the pros do the down-rez and use their 720p version ... someday you'll get a higher rez screen. That would be a worthwhile reason to get the big one.

What did they use as a buffer for docking boats before there were tires?

Description : What did they use as a buffer for docking boats before there were tires?

Last Answer : They used elaborately knotted thick ropes to make fenders.

How can I use the reverse method of the string buffer using Java?

Description : How can I use the reverse method of the string buffer using Java?

Last Answer : Show your attempt at using reverse() yourself, and one of us might help you fix/improve it. No one is going to write your homework for you.

What kind of floor cleaner do you use with a floor buffer?

Description : What kind of floor cleaner do you use with a floor buffer?

Last Answer : I have heard that Murphy’s Oil Soap is good on Hardwood floors.

What grasses or sedges have a substantial network of roots to hold the soil in place in a pond buffer?

Description : What grasses or sedges have a substantial network of roots to hold the soil in place in a pond buffer?

Last Answer : Need Answer

which of the following best describes a solution that contains a buffer?

Description : which of the following best describes a solution that contains a buffer?

Last Answer : A citric acid is added to the solution but the pH of the solution does not change

What is Buffer Solution ?

Description : What is Buffer Solution ?

Last Answer : A solution in which a small amount of acid , alkali or solvent is added but the pH of the solution remains unchanged is called a buffer solution . Buffer solutions are usually made with a weak ... H₂CO₃ + NaHCO₃ alkaline buffer. This is known as carbonate buffer or carbonate-bicarbonate.

What is Buffer Action ?

Description : What is Buffer Action ?

Last Answer : Adding a small amount of weak acid or weak alkali to the buffer solution from the outside is called the buffer action of the solution.

What is Buffer ?

Description : What is Buffer ?

Last Answer : The buffer is the memory in which the data is stored temporarily before the data is permanently stored on disk .

What would be the reduction potential of an electrode at 298 K , which originally contained ` 1K_(2)Cr_(2)O_(7)` solution in acidic buffer solution of

Description : What would be the reduction potential of an electrode at 298 K , which originally contained ` 1K_(2)Cr_(2)O_(7)` solution in acidic buffer solution of

Last Answer : What would be the reduction potential of an electrode at 298 K , which originally contained ` 1K_(2)Cr_(2)O_(7)` ... V` C. `1.187 V` D. None of these

What secretes a buffer that neutralizes the acidity of stomach acid?

Description : What secretes a buffer that neutralizes the acidity of stomach acid?

Last Answer : Need answer

Why did Stalin want to create buffer zone?

Description : Why did Stalin want to create buffer zone?

Last Answer : Need answer

When Spain owned Louisiana it was a buffer zone between the british colonies and?

Description : When Spain owned Louisiana it was a buffer zone between the british colonies and?

Last Answer : What is the answer ?

What is the function of BL buffer in DNA extraction?

Description : What is the function of BL buffer in DNA extraction?

Last Answer : In a DNA extraction, the purpose of a buffer is to solubilizeDNA as well as RNA. Because of this, it prevents the DNA fordegrading.

What is the definition of a buffer in chemistry?

Description : What is the definition of a buffer in chemistry?

Last Answer : A buffer is used to maintain a constant pH.