Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as (1) Additives (2) Antagonism (3) Synergism (4) Independent

Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as (1) Additives (2) Antagonism (3) Synergism (4) Independent
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Synergism
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Eposure to mixtures of chemicals are greater than expected on the basis of effects of expo-sure to each chemical individually. This is known as – (1) Additives (2) Antagonism (3) Synergism (4) Independent

Description : Eposure to mixtures of chemicals are greater than expected on the basis of effects of expo-sure to each chemical individually. This is known as – (1) Additives (2) Antagonism (3) Synergism (4) Independent

Last Answer : (3) Synergism Explanation: When the toxic effect of the mixture is greater than that expected for the sum of individual constituent doses, which is that effects of combined doses are more- ... less than that expected under the dose additivity assumption, the interactions are said to be antagonistic.

Th effect or response produced by two or more chemicals are less than the sum of the effects or response that the chemical would produce individually is known as - (1) Antagonism (2) Independent (3) Additive (4) Synergism

Description : Th effect or response produced by two or more chemicals are less than the sum of the effects or response that the chemical would produce individually is known as - (1) Antagonism (2) Independent (3) Additive (4) Synergism

Last Answer : (1) Antagonism Explanation: Synergy is the interaction of multiple elements in a system to produce an effect different from or greater than the sum of their individual effects. On the other hand, ... of two or more substances to produce an effect less than the sum of their individual effects.

The effect or response produced by two or more chemicals are less than the sum of the effects or response that the chemical would produce individually is known as (1) Antagonism (2) Independent (3) Additive (4) Synergism

Description : The effect or response produced by two or more chemicals are less than the sum of the effects or response that the chemical would produce individually is known as (1) Antagonism (2) Independent (3) Additive (4) Synergism

Last Answer : Antagonism

If the effect of combination of two drugs is equal to the sum of their individual effects, the two drugs are exhibiting: A. Potentiation B. Synergism C. Cross tolerance D. Antagonism

Description : If the effect of combination of two drugs is equal to the sum of their individual effects, the two drugs are exhibiting: A. Potentiation B. Synergism C. Cross tolerance D. Antagonism

Last Answer : B. Synergism

If the effect of combination of two drugs is equal to the sum of their individual effects, the two drugs are exhibiting: A. Potentiation B. Synergism C. Cross tolerance D. Antagonism

Description : If the effect of combination of two drugs is equal to the sum of their individual effects, the two drugs are exhibiting: A. Potentiation B. Synergism C. Cross tolerance D. Antagonism

Last Answer : B. Synergism

Beneficial effects of β-adrenoceptor blockers in CHF include the following except: A. Antagonism of ventricular wall stress enhancing action of sympathetic overactivity B. Antagonism of vasoconstriction due to sympathetic overactivity C. Prevention of pathological remodeling of ventricular myocardium D. Prevention of dangerous cardiac arrhythmias

Description : Beneficial effects of β-adrenoceptor blockers in CHF include the following except: A. Antagonism of ventricular wall stress enhancing action of sympathetic overactivity B. Antagonism ... Prevention of pathological remodeling of ventricular myocardium D. Prevention of dangerous cardiac arrhythmias

Last Answer : B. Antagonism of vasoconstriction due to sympathetic overactivity

The antagonism between adrenaline and histamine is called ‘physiological antagonism’ because: A. Both are physiologically present in the body B. They act on physiological receptors C. Both affect many physiological processes D. They have opposite physiological effects

Description : The antagonism between adrenaline and histamine is called ‘physiological antagonism’ because: A. Both are physiologically present in the body B. They act on physiological receptors C. Both affect many physiological processes D. They have opposite physiological effects

Last Answer : D. They have opposite physiological effects

The antagonism between adrenaline and histamine is called ‘physiological antagonism’ because: A. Both are physiologically present in the body B. They act on physiological receptors C. Both affect many physiological processes D. They have opposite physiological effects

Description : The antagonism between adrenaline and histamine is called ‘physiological antagonism’ because: A. Both are physiologically present in the body B. They act on physiological receptors C. Both affect many physiological processes D. They have opposite physiological effects

Last Answer : D. They have opposite physiological effects

Does long term use and exposure to eye shadow and similar chemicals lead to skin abrasion and skin disease?

Description : Does long term use and exposure to eye shadow and similar chemicals lead to skin abrasion and skin disease?

Last Answer : I don’t think so. Make up is tested and re-tested and has been for years. On animals sadly. I would think that actors would have the most issues especially if they were child actors and had to wear heavy make up most of their lives. I have never heard of these issues though.

Exposure to chemicals having carcinogenic properties cause (A) Dermatitis (skin disorder) (B) Cancer (C) Asphyxiation (suffocation) (D) Asthma

Description : Exposure to chemicals having carcinogenic properties cause (A) Dermatitis (skin disorder) (B) Cancer (C) Asphyxiation (suffocation) (D) Asthma

Last Answer : (B) Cancer

Exposure to chemicals having carcinogenic properties cause (A) Dermatitis (skin disorder) (B) Cancer (C) Asphyxiation (D) Asthma

Description : Exposure to chemicals having carcinogenic properties cause (A) Dermatitis (skin disorder) (B) Cancer (C) Asphyxiation (D) Asthma

Last Answer : (B) Cancer

During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize. b) Promotion During promotion, repeated exposure to promoting agents causes the expression of abnormal genetic information even after long latency periods. c) Initiation During this first step, initiators such as chemicals, physical factors, and biologic agents escape normal enzymatic mechanisms and alter the genetic structure of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.

Description : During which step of cellular carcinogenesis do cellular changes exhibit increased malignant behavior? a) Progression During this third step, cells show a propensity to invade adjacent tissues and ... of cellular DNA. d) Prolongation No stage of cellular carcinogenesis is termed prolongation.

Last Answer : a) Progression During this third step, cells show a propensity to invade adjacent tissues and metastasize.

Which of the following terms best describes the antagonism of leukotriene’s bronchoconstrictor effect (mediated at leukotriene receptors) by terbutaline (acting a adrenoceptors) in a patient with asthma? (a) Pharmacologic antagonist (b) Partial agonist (c) Physiologic antagonist (d) Chemical antagonist (e) Noncompetitive antagonist

Description : Which of the following terms best describes the antagonism of leukotriene's bronchoconstrictor effect (mediated at leukotriene receptors) by terbutaline (acting a adrenoceptors) in a patient with ... ) Partial agonist (c) Physiologic antagonist (d) Chemical antagonist (e) Noncompetitive antagonist

Last Answer : Ans: C

The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Description : The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Last Answer : B. Chemical antagonism

The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Description : The antidotal action of sodium nitrite in cyanide poisoning is based on: A. Physical antagonism B. Chemical antagonism C. Physiological antagonism D. Noncompetitive antagonism

Last Answer : B. Chemical antagonism

Waxy crudes are treated with chemical additives mainly to (A) Depress its pour point (B) Dissolve wax (C) Precipitate wax (D) Remove wax

Description : Waxy crudes are treated with chemical additives mainly to (A) Depress its pour point (B) Dissolve wax (C) Precipitate wax (D) Remove wax

Last Answer : (A) Depress its pour point

Which of the following is expected of AASC to do? a. AASC should normally expose its opinion on specific queries from a practicing CPA. b. AASC should normally expose a proposed interpretation of statements. c. To make the statements on Philippine Standards on Auditing operative, the final statement shall be submitted to the Board of Accountancy for approval. d. When it is deemed necessary to expose a statement for a comment on proposed interpretations of statements, the exposure period is understandably shorter than those of the regular drafts of standards

Description : Which of the following is expected of AASC to do? a. AASC should normally expose its opinion on specific queries from a practicing CPA. b. AASC should normally expose a proposed ... of statements, the exposure period is understandably shorter than those of the regular drafts of standards

Last Answer : To make the statements on Philippine Standards on Auditing operative, the final statement shall be submitted to the Board of Accountancy for approval.

If a person has been exposed to radiation, presenting symptoms, such as nausea, vomiting, loss of appetite, diarrhea, or fatigue can be expected to occur within _______ hours after exposure? a) 48 to 72 The prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure. Signs and symptoms include nausea, vomiting, loss of appetite, diarrhea, and fatigue. With high-dose radiation exposure, the signs and symptoms may include fever, respiratory distress, and increased excitability.

Description : If a person has been exposed to radiation, presenting symptoms, such as nausea, vomiting, loss of appetite, diarrhea, or fatigue can be expected to occur within _______ hours after exposure? ... prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure.

Last Answer : a) 48 to 72 The prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure. Signs and symptoms include nausea, vomiting, loss of appetite, ... radiation exposure, the signs and symptoms may include fever, respiratory distress, and increased excitability.

synergism is like a ________ in your bloodstream. -General Knowledge

Description : synergism is like a ________ in your bloodstream. -General Knowledge

Last Answer : Synergism is like a volcano in your bloodstream.

When a virus enters a cell but does not replicate immediately, the situation is Called A.lysogeny B.fermentation C.symbiosis D.synergism

Description : When a virus enters a cell but does not replicate immediately, the situation is Called A.lysogeny B.fermentation C.symbiosis D.synergism

Last Answer : A.lysogeny

When a virus enters a cell but does not replicate immediately, the situation is Called A.lysogeny B.fermentation C.symbiosis D.synergism

Description : When a virus enters a cell but does not replicate immediately, the situation is Called A.lysogeny B.fermentation C.symbiosis D.synergism

Last Answer : A.lysogeny

Select the drug combination which does not exhibit supraadditive synergism: A. Nalidixic acid + Nitrofurantoin B. Amoxicillin + Clavulanic acid C. Pyrimethamine + Sulfadoxine D. Sulfamethoxazole + Trimethoprim

Description : Select the drug combination which does not exhibit supraadditive synergism: A. Nalidixic acid + Nitrofurantoin B. Amoxicillin + Clavulanic acid C. Pyrimethamine + Sulfadoxine D. Sulfamethoxazole + Trimethoprim

Last Answer : A. Nalidixic acid + Nitrofurantoin

Why does Scott toilet tissue wrap each roll individually in tissue paper?

Description : Why does Scott toilet tissue wrap each roll individually in tissue paper?

Last Answer : I’m confused (this is normal). Do you mean they wrap each individual roll of a multi-pack as if they were being sold individually?

In testing for mobility, which of the following statement is true: a.Heavy pressure must sometimes be used to test mobility. b.Only lateral mobility is significant in diagnosis and treatment of chronic inflammatory periodontal disease. c.Hyper mobility indicates that the tooth supporting structure have been weakened. d.During the periodontal examination each tooth should be tested individually for hyper mobility.

Description : In testing for mobility, which of the following statement is true: a.Heavy pressure must sometimes be used to test mobility. b.Only lateral mobility is significant in diagnosis and ... weakened. d.During the periodontal examination each tooth should be tested individually for hyper mobility.

Last Answer : d.During the periodontal examination each tooth should be tested individually for hyper mobility.

In testing for mobility, which of the following statement is true:** M07 A. Heavy pressure must sometimes be used to test mobility B. Only lateral mobility is significant in diagnosis and treatment of chronic inflammatory periodontal disease C. Hyper mobility indicates that the tooth supporting structures have been weakened D. During the periodontal examination each tooth should be tested individually for hyper mobility E. Reliance on radiograph is essential

Description : In testing for mobility, which of the following statement is true:** M07 A. Heavy pressure must sometimes be used to test mobility B. Only lateral mobility is significant in ... examination each tooth should be tested individually for hyper mobility E. Reliance on radiograph is essential

Last Answer : D. During the periodontal examination each tooth should be tested individually for hyper mobility

Classify the following mixtures as homogeneous and heterogeneous. (i)Tincture of iodine (iv)Sugar solution (ii)Smoke (iii)Brass -Chemistry

Description : Classify the following mixtures as homogeneous and heterogeneous. (i)Tincture of iodine (iv)Sugar solution (ii)Smoke (iii)Brass -Chemistry

Last Answer : In the above classification, tincture of iodine, brass and sugar are homogenous mixture while the smoke is heterogeneous mixture. Tincture of iodine is a liquid solution, brass is an alloy made ... component. Smoke on other hand is composed of moisture and gas thus making the mixture heterogeneous.

Which one of the following is not a characteristic feature of alloys? They are – (1) Compounds (2) Mixtures (3) Solutions (4) Homogeneous systems

Description : Which one of the following is not a characteristic feature of alloys? They are – (1) Compounds (2) Mixtures (3) Solutions (4) Homogeneous systems

Last Answer : (4) Homogeneous systems Explanation: An alloy is a mixture or metallic solid solution composed of two or more elements. So they are heterogeneous systems. Complete solid solution alloys give ... (heat treatment) history. Alloys usually have different properties from those of the component elements.

What are the various types of mixtures ?

Description : What are the various types of mixtures ?

Last Answer : Ans. Mixtures are of two types: (I) Homogeneous – A mixture is said to be homogenous if its composition is uniform throughout. (II) Heterogeneous – A mixture is said to be heterogeneous if its composition is not uniform throughout.

Which of the following reaction mixtures will give an organic product which is ionic? (a) CH3CH2OH + PCl5 (b) CH3CH2OH + KBr + H2SO4 (c) CH3CH2OH + Na (d) CH3CH2OH + SOCl2

Description : Which of the following reaction mixtures will give an organic product which is ionic? (a) CH3CH2OH + PCl5 (b) CH3CH2OH + KBr + H2SO4 (c) CH3CH2OH + Na (d) CH3CH2OH + SOCl2

Last Answer : CH3CH2OH + Na

Which one of the following is not a characteristic feature of alloys? They are (1) Compounds (2) Mixtures (3) Solutions (4) Homogeneous systems

Description : Which one of the following is not a characteristic feature of alloys? They are (1) Compounds (2) Mixtures (3) Solutions (4) Homogeneous systems

Last Answer :  Homogeneous systems

A metal ‘X’ acquires a green colour coating on its surface on exposure to air. (i) Identify the metal ‘X’ and name the process responsible for this change. (ii)Name and write chemical formula of the green coating formed on the metal. (iii) List two important methods to prevent the process. -Chemistry

Description : A metal X' acquires a green colour coating on its surface on exposure to air. (i) Identify the metal X' and name the process responsible for this change. (ii)Name and write chemical ... the green coating formed on the metal. (iii) List two important methods to prevent the process. -Chemistry

Last Answer : (i) Metal is copper. The process is corrosion. (ii)Basic copper carbonate [CuCO3.Cu(0H)2]. (iii) • It should be coated with tin • It should be mixed with other metals to form alloys.

What action has been taken to reduce effects of toxic chemicals?

Description : What action has been taken to reduce effects of toxic chemicals?

Last Answer : What is the answer ?

What are The best way to protect against the effects of exposure to radiation?

Description : What are The best way to protect against the effects of exposure to radiation?

Last Answer : Radiation

Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of (A) CO2 (B) SO2 (C) Hydrocarbons (D) CFC (chloro fluoro carbon)

Description : Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of (A) CO2 (B) SO2 (C) Hydrocarbons (D) CFC (chloro fluoro carbon)

Last Answer : (D) CFC (chloro fluoro carbon)

One of the potential health effects of exposure to high levels of noise is called tinnitus (pron: ti - NI - tes), which means: w) a permanent loss of hearing. x) a persistent ringing or hissing in the ears after exposure. y) a temporary loss of hearing, especially of upper frequencies. z) abdominal discomfort from low frequency noise.

Description : One of the potential health effects of exposure to high levels of noise is called tinnitus (pron: ti - NI - tes), which means: w) a permanent loss of hearing. x) a persistent ringing ... ) a temporary loss of hearing, especially of upper frequencies. z) abdominal discomfort from low frequency noise.

Last Answer : ANSWER: X -- A PERSISTENT RINGING OR HISSING IN THE EARS AFTER EXPOSURE.

“The enthalpy change for any chemical reaction is independent of the intermediate stages, provided the initial and final conditions are the same for each route.” This statement is known as:

Description : “The enthalpy change for any chemical reaction is independent of the intermediate stages, provided the initial and final conditions are the same for each route.” This statement is known as:  A. Dulong’s Law  B. Dalton’s Law  C. Hess’s Law  D. Petit Law

Last Answer : Hess’s Law

When a person's sick, is your risk to their germs greater by exposure to their sweat/touching things or by their saliva/sneezing & coughing?

Description : When a person's sick, is your risk to their germs greater by exposure to their sweat/touching things or by their saliva/sneezing & coughing?

Last Answer : Saliva, mucous, all of that poses the greatest danger. Wet stuff. It can get on anything. They are still contagious usually when they start showing symptoms.

Independent firms at different channel levels integrate their programs on a contractual basis to achieve systemic economies and increased market impact are known as………. A. Corporate vertical marketing systems B. Contractual vertical marketing systems C. Administered vertical D. None of the above

Description : Independent firms at different channel levels integrate their programs on a contractual basis to achieve systemic economies and increased market impact are known as . A. Corporate vertical marketing ... B. Contractual vertical marketing systems C. Administered vertical D. None of the above

Last Answer : B. Contractual vertical marketing systems

Which of the following shows biological antagonism or allelopathy?

Description : Which of the following shows biological antagonism or allelopathy?

Last Answer : Which of the following shows biological antagonism or allelopathy? A. Amensalism B. Proto-cooperation C. Competition D. Parasitism

Methylxanthines exert the following action (s) at cellular/molecular level (a) Intracellular release of Ca2+ (b) Antagonism of adenosine (c) Inhibition of phosphodiesterase (d) All of the above

Description : Methylxanthines exert the following action (s) at cellular/molecular level (a) Intracellular release of Ca2+ (b) Antagonism of adenosine (c) Inhibition of phosphodiesterase (d) All of the above

Last Answer : Ans: D

“Antagonism “ is seen in a. Lag phase b. Plasmids c. Log phase d. None of these

Description : “Antagonism “ is seen in a. Lag phase b. Plasmids c. Log phase d. None of these

Last Answer : Ans: D

Which type of antimicrobial drug combination is most likely to exhibit antagonism ? (a) Bactericidal + Bactericidal (b) Bactericidal + Bacteriostatic for a highly sensitive organism (c) Bactericidal + Bacteriostatic for a marginally sensitive organism (d) Bacteriostatic + Bacteriostatic

Description : Which type of antimicrobial drug combination is most likely to exhibit antagonism ? (a) Bactericidal + Bactericidal (b) Bactericidal + Bacteriostatic for a highly sensitive organism (c) Bactericidal + Bacteriostatic for a marginally sensitive organism (d) Bacteriostatic + Bacteriostatic

Last Answer : Ans: B

Mycorrhiza exhibits the phenomenon of (a) parasitism (b) symbiosis (c) antagonism (d) endemism.

Description : Mycorrhiza exhibits the phenomenon of (a) parasitism (b) symbiosis (c) antagonism (d) endemism.

Last Answer : (b) symbiosis

efficacy of an activator adjuvant is a function of a). Adjuvant only b). Herbicide only c). Both a&b d). Antagonism

Description : efficacy of an activator adjuvant is a function of a). Adjuvant only b). Herbicide only c). Both a&b d). Antagonism

Last Answer : c). Both a&b

The following anti-HIV drug should not be combined with zidovudine because of mutual antagonism: A. Stavudine B. Lamivudine C. Nevirapine D. Ritonavir

Description : The following anti-HIV drug should not be combined with zidovudine because of mutual antagonism: A. Stavudine B. Lamivudine C. Nevirapine D. Ritonavir

Last Answer : A. Stavudine

Which type of antimicrobial drug combination is most likely to exhibit antagonism: A. Bactericidal + Bactericidal B. Bactericidal + Bacteriostatic for a highly sensitive organism C. Bactericidal + Bacteriostatic for a marginally sensitive organism D. Bacteriostatic + Bacteriostatic

Description : Which type of antimicrobial drug combination is most likely to exhibit antagonism: A. Bactericidal + Bactericidal B. Bactericidal + Bacteriostatic for a highly sensitive organism C. Bactericidal + Bacteriostatic for a marginally sensitive organism D. Bacteriostatic + Bacteriostatic

Last Answer : B. Bactericidal + Bacteriostatic for a highly sensitive organism

The mechanisms involved in the causation of dangerous cardiac arrhythmias due to overdose of tricyclic antidepressants include the following except: A. Intraventricular conduction block B. Potentiation of noradrenaline C. Antagonism of acetylcholine D. Increased vagal tone

Description : The mechanisms involved in the causation of dangerous cardiac arrhythmias due to overdose of tricyclic antidepressants include the following except: A. Intraventricular conduction block B. Potentiation of noradrenaline C. Antagonism of acetylcholine D. Increased vagal tone

Last Answer : D. Increased vagal tone

The primary mechanism of action of benzodiazepines is: A. Dopamine antagonism B. Adenosine antagonism C. Opening of neuronal chloride channels D. Facilitation of GABA-mediated chloride influx

Description : The primary mechanism of action of benzodiazepines is: A. Dopamine antagonism B. Adenosine antagonism C. Opening of neuronal chloride channels D. Facilitation of GABA-mediated chloride influx

Last Answer : D. Facilitation of GABA-mediated chloride influx

TThe most important mechanism of antiinflammatory action of glucocorticoids is: A. Inhibition of lysosomal enzymes B. Restriction of recruitment of inflammatory cells at the site of inflammation C. Antagonism of action of interleukins D. Suppression of complement function

Description : The most important mechanism of antiinflammatory action of glucocorticoids is: A. Inhibition of lysosomal enzymes B. Restriction of recruitment of inflammatory cells at the site of inflammation C. Antagonism of action of interleukins D. Suppression of complement function

Last Answer : B. Restriction of recruitment of inflammatory cells at the site of inflammation

6.12 The most prominent action of bromocriptine is: A. Dopamine D2 agonism B. Dopamine D2 antagonism C. Dopamine D1 antagonism D. α adrenergic antagonism

Description : 6.12 The most prominent action of bromocriptine is: A. Dopamine D2 agonism B. Dopamine D2 antagonism C. Dopamine D1 antagonism D. α adrenergic antagonism

Last Answer : A. Dopamine D2 agonism