Question:
Assertion (A): Agar is extracted from Gelidium and Gracilaria.
Reason (R): Agar is used to grow microbes and preparation of ice creams and jellies.
Assertion (A): Agar is extracted from Gelidium and Gracilaria.
Reason (R): Agar is used to grow microbes and preparation of ice creams and jellies.
Reason (R): Agar is used to grow microbes and preparation of ice creams and jellies.
Show Hint
Gelidium and Gracilaria are the main sources of agar used in microbiology and food industries.
Updated On: Jun 20, 2026
- Both A and R are not correct
- Both A and R are correct but R is not correct explanation of A
- A is correct but R is wrong
- A is wrong but R is correct
Show Solution
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The Correct Option is B
Solution and Explanation
Step 1: Evaluating Assertion (A).
Agar is a gelatinous substance obtained from red algae, mainly Gelidium and Gracilaria. It is widely used in microbiological culture media and food industry applications. Hence, Assertion (A) is correct.
Step 2: Evaluating Reason (R).
Agar is indeed used as a solidifying agent for microbial culture media and also in food products like jellies and ice creams due to its gelling properties. Hence, Reason (R) is also correct.
Step 3: Checking the relationship.
Although both statements are correct, Reason (R) describes the uses of agar and does not explain its extraction source mentioned in Assertion (A). Therefore, it is not the correct explanation.
Step 4: Logical analysis.
The source of agar (red algae) is independent of its applications. Thus, extraction and usage are two separate concepts.
Step 5: Final conclusion.
Both A and R are correct statements, but R does not explain A.
Final Answer: \[ \boxed{\text{Both A and R are correct but R is not the correct explanation of A}} \]
Agar is a gelatinous substance obtained from red algae, mainly Gelidium and Gracilaria. It is widely used in microbiological culture media and food industry applications. Hence, Assertion (A) is correct.
Step 2: Evaluating Reason (R).
Agar is indeed used as a solidifying agent for microbial culture media and also in food products like jellies and ice creams due to its gelling properties. Hence, Reason (R) is also correct.
Step 3: Checking the relationship.
Although both statements are correct, Reason (R) describes the uses of agar and does not explain its extraction source mentioned in Assertion (A). Therefore, it is not the correct explanation.
Step 4: Logical analysis.
The source of agar (red algae) is independent of its applications. Thus, extraction and usage are two separate concepts.
Step 5: Final conclusion.
Both A and R are correct statements, but R does not explain A.
Final Answer: \[ \boxed{\text{Both A and R are correct but R is not the correct explanation of A}} \]
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