Home
Class 12
BIOLOGY
Assertion : Griseofulvin extracted from...

Assertion : Griseofulvin extracted from P.griseofulvum is used for ringworm treatment.
Reason : Trichopyton, Epidermophyton, etc., cannot grow well in presence of Penicillium griseofulvum.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason provided, we will analyze both statements step by step. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Griseofulvin extracted from P. griseofulvum is used for ringworm treatment." - Griseofulvin is indeed an antifungal medication that is effective against fungal infections, particularly those caused by dermatophytes, which include ringworm. 2. **Understanding the Reason**: - The reason states that "Trichophyton, Epidermophyton, etc., cannot grow well in the presence of Penicillium griseofulvum." - This statement is also correct. Penicillium griseofulvum produces compounds that inhibit the growth of certain fungi, including Trichophyton and Epidermophyton, which are responsible for ringworm infections. 3. **Evaluating the Relationship**: - Now, we need to determine if the reason correctly explains the assertion. - Since Griseofulvin is effective against the fungi that cause ringworm, and it is derived from Penicillium griseofulvum, the fact that these fungi cannot grow well in its presence supports the assertion. 4. **Conclusion**: - Both the assertion and the reason are correct, and the reason provides a correct explanation for the assertion. Therefore, the answer is that both statements are true, and the reason is a correct explanation of the assertion. ### Final Answer: Both the assertion and the reason are correct, and the reason is the correct explanation of the assertion.
To solve the question regarding the assertion and reason provided, we will analyze both statements step by step. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Griseofulvin extracted from P. griseofulvum is used for ringworm treatment." - Griseofulvin is indeed an antifungal medication that is effective against fungal infections, particularly those caused by dermatophytes, which include ringworm. ...
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    NCERT FINGERTIPS ENGLISH|Exercise Microbes In Human Welfare|138 Videos

  • MICROBES IN HUMAN WELFARE

    NCERT FINGERTIPS ENGLISH|Exercise NCERT|18 Videos

  • HUMAN REPRODUCTION

    NCERT FINGERTIPS ENGLISH|Exercise Human Reproduction|185 Videos

  • MOLECULAR BASIS OF INHERITANCE

    NCERT FINGERTIPS ENGLISH|Exercise Molecular Basis Of Inheritance|151 Videos

Similar Questions

Explore conceptually related problems

Assertion : Gold and silver are extracted from their native ores by leaching. Reason : Both silver and gold particles dissolve in dilute solution of sodium cyanide in presence of oxygen.

Assertion : Secondary metabolites are produced in small quantities and their extraction from the plant is difficult and expensive. Reason : Secondary metabolites can be commercially produced by using tissue culture techinque.

Read the following statements and select the correct option. Statement 1 : Many fungi beionging to genera Microsporum, Trichophyton and Epidermophyton are responsible for the disease ringworm. Statement 2 : Ringworm infection is generally acquired from soil or by using towels, clothes, comb, etc. of infected individuals.

Assertion : Rennet and fruit extract of Withania somnifera have antagonistic functions. Reason : Rennet is obtained from calf's liver and is used for curding of milk.

Assertion: Insulin used in diabetes was earlier extracted from pancreas of slaughtered cattle and pigs Reason: Insulin from an animal source caused some patients to develop allergy or other types of reactions to the foreign protein

Assertion: Limestone addes in the blast furnace decomposes to give CaO which forms slag in molten state and separates out from iron Reason : The iron obtained from the blast furnace contains about 4% carbon and many impurities like S,P,Si, Mn, etc.

Redox reactions play a pivotal role in chemistry and biology. The values standard redox potential (E^(o)) of two half cell reactions decided which way the reaction is expected to preceed. A simple example is a Daniell cell in which zinc goes into solution and copper sets deposited. Given below are a set of half cell reactions ( acidic medium ) along with their E^(c-)(V with respect to normal hydrogen electrode ) values. Using this data, obtain correct explanations for Question. I_(2)+2e^(-) rarr 2I^(c-)," "E^(c-)=0.54 Cl_(2)+2e^(-) rarr 2Cl^(c-), " "E^(c-)=1.36 Mn^(3+)+e^(-) rarr Mn^(2+), " "E^(c-)=1.50 Fe^(3+)+e^(-) rarr Fe^(2+)," "E^(c-)=0.77 O_(2)+4H^(o+)+4e^(-) rarr 2H_(2)O, " "E^(c-)=1.23 Sodium fusion extract obtained from aniline on treatment with iron (II) sulphate and H_(2)SO_(4) in the presence of air gives a Prussion blue precipitate. The blue colour is due to the formation of

Assertion : While working on staphylococci, Alexander Fleming observed that Penicillium notatum inhibits the growing of bacteria Reason : The inhibiting chemical was commercially extracted and its full potential was established by Alexander Fleming

In 1894 , Lord Rayleigh reported that the mass of chemically prepared nitrogen was different from that of nitrogen extracted from the atmosphere, as shown in Tables 1 and 2 . Latter, this difference was attributed to the presence of argon in atmospheric nitrogen. The masses of gases were mearsured by using a glass vessel with a known volume under atmospheric pressure (1.013xx10^(5)Pa) . |{:("From nitric oxide",,2.3001 g),("From nitrous oxide",,2.2990 g),("From amonium nitrite purified at a red heat",,2.2987 g),("From urea",,2.2985 g),("From ammonium nitrite purified in the cold",,2.2987 g),("Mean",,2.2990 g):}| |{:(O_(2) "was removed by hot copper" (1892),,2.3103 g),(O_(2) "was removed by hot iron" (1893),,2.3100 g),(O_(2) "was removed by ferrous hydrate (1894),2.3102 g,),(Mean,,2.3102 g):}| Ramsay and cleve discovered helium in cleveite (a mineral consiting of uranium oxide and oxides of lead, thorium, and rare earths, an impure variety of uraninite) independently and virtually simultaneously in 1895 . The gas extracted from the rock showed a unique spectroscopic line at around 588 nm (indicated by D3 in Figure 1 ), which was fist observed in the spectrum of solar prominence during a total eclipse in 1868 , near the well-known D_(1) and D_(2) lines of sodium. ul("Which") equation explains the occurrence of helium in cleveite among [A] to [D] below? Mark one.

In 1894 , Lord Rayleigh reported that the mass of chemically prepared nitrogen was different from that of nitrogen extracted from the atmosphere, as shown in Tables 1 and 2 . Latter, this difference was attributed to the presence of argon in atmospheric nitrogen. The masses of gases were mearsured by using a glass vessel with a known volume under atmospheric pressure (1.013xx10^(5)Pa) . |{:("From nitric oxide",,2.3001 g),("From nitrous oxide",,2.2990 g),("From amonium nitrite purified at a red heat",,2.2987 g),("From urea",,2.2985 g),("From ammonium nitrite purified in the cold",,2.2987 g),("Mean",,2.2990 g):}| |{:(O_(2) "was removed by hot copper" (1892),,2.3103 g),(O_(2) "was removed by hot iron" (1893),,2.3100 g),(O_(2) "was removed by ferrous hydrate (1894),2.3102 g,),(Mean,,2.3102 g):}| Ramsay and cleve discovered helium in cleveite (a mineral consiting of uranium oxide and oxides of lead, thorium, and rare earths, an impure variety of uraninite) independently and virtually simultaneously in 1895 . The gas extracted from the rock showed a unique spectroscopic line at around 588 nm (indicated by D3 in Figure 1 ), which was fist observed in the spectrum of solar prominence during a total eclipse in 1868 , near the well-known D_(1) and D_(2) lines of sodium. ul("Identify") the transition relevant to the D_(3) line of helium among the transitions [A] to [E] indicated in Figure 2. Mark one of the following: [A] [B] [C] [D] [E]