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In the following questions, a statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the statements carefully and mark the answer-
Assertion (A): Chlorophyll a is an universal plastid in autotrophic plants.
Reason (R): P700 and P680 are types of chlorophyll a.
  • a)
    Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  • b)
    Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  • c)
    Assertion is false but Reason is true.
  • d)
    Both Assertion and Reason are false.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In the following questions, a statement of Assertion (A) is given foll...
Option b is correct as both are correct but reason is not the correct explanation. Chlorophyll a is the universal plastid in autotropic plants as it's absorption spectrum is very much similar to action spectrum of photosynthesis. But one-to-one overlapping is not there which indicates that other pigments also help in the process of photosynthesis. P680 and P700 are two types of chlorophyll a.
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Community Answer
In the following questions, a statement of Assertion (A) is given foll...
Assertion: Chlorophyll a is a universal plastid in autotrophic plants.
Reason: P700 and P680 are types of chlorophyll a.

The correct answer is option B, both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

Explanation:
Chlorophyll a is a primary pigment that is found in all autotrophic plants and is responsible for absorbing light energy during photosynthesis. It is a universal plastid as it is present in all types of autotrophic plants, including algae, mosses, ferns, and flowering plants.

On the other hand, P700 and P680 are not types of chlorophyll a. They are special types of chlorophyll found in the photosystem I and photosystem II respectively. Both of these pigments are responsible for the absorption of light energy during photosynthesis.

Therefore, while both Assertion and Reason are true, Reason is not the correct explanation of Assertion as P700 and P680 are not types of chlorophyll a.
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In the following questions, a statement of Assertion (A) is given followed by a corresponding Reason (R) just below it. Read the statements carefully and mark the answer-Assertion (A): Chlorophyll a is an universal plastid in autotrophic plants.Reason (R): P700 and P680 are types of chlorophyll a.a)Both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.c)Assertion is false but Reason is true.d)Both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?
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