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Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :
Assertion : Euglenoids are heterotrophic and autotrophic organisms.
Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.
- a)Assertion (A) is false but reason (R) is true.
- b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Directions : In the following questions a statement of Assertion (A) i...
Euglenoids are both autotrophic and heterotrophic. They have chlorophyll and hence in the presence of sunlight they can prepare their food by the process of photosynthesis. In absence of sunlight, they behave like a predator and feed on other smaller microorganisms.
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Directions : In the following questions a statement of Assertion (A) i...
Assertion and Reasoning
Assertion (A): Euglenoids are heterotrophic and autotrophic organisms.
Reason (R): Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.
Explanation
Euglenoids are unicellular organisms that belong to the phylum Euglenophyta. They are found in freshwater, marine, and even in moist soils. Euglenoids are unique in having both plant-like and animal-like characteristics. This means that they can perform photosynthesis and also consume other organisms for food.
Assertion (A) is true because:
- Euglenoids are known to be both heterotrophic and autotrophic.
- They can obtain food by photosynthesis (autotrophic) and by ingesting other organisms (heterotrophic).
Reason (R) is also true because:
- Euglenoids have chloroplasts that contain the pigment chlorophyll.
- Chlorophyll allows them to perform photosynthesis and prepare their food in the presence of sunlight.
- However, they can also survive in the absence of sunlight by ingesting other organisms for food.
Therefore, both Assertion (A) and Reason (R) are true. Reason (R) correctly explains Assertion (A).
Hence, the correct answer is option (D).
Assertion (A): Euglenoids are heterotrophic and autotrophic organisms.
Reason (R): Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.
Explanation
Euglenoids are unicellular organisms that belong to the phylum Euglenophyta. They are found in freshwater, marine, and even in moist soils. Euglenoids are unique in having both plant-like and animal-like characteristics. This means that they can perform photosynthesis and also consume other organisms for food.
Assertion (A) is true because:
- Euglenoids are known to be both heterotrophic and autotrophic.
- They can obtain food by photosynthesis (autotrophic) and by ingesting other organisms (heterotrophic).
Reason (R) is also true because:
- Euglenoids have chloroplasts that contain the pigment chlorophyll.
- Chlorophyll allows them to perform photosynthesis and prepare their food in the presence of sunlight.
- However, they can also survive in the absence of sunlight by ingesting other organisms for food.
Therefore, both Assertion (A) and Reason (R) are true. Reason (R) correctly explains Assertion (A).
Hence, the correct answer is option (D).
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Directions : In the following questions a statement of Assertion (A) i...
In the reason section..how it can prepare its food in the absence of light. in the absence of light it behave like hetrotropes...is there any mistake
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Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer?
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Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer?.
Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer?.
Solutions for Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Directions : In the following questions a statement of Assertion (A) is followed by a statement of reason (R). Mark the correct choice as :Assertion : Euglenoids areheterotrophic and autotrophic organisms.Reason : Euglenoids have chlorophyll and can prepare their food in the presence or absence of sunlight.a)Assertion (A) is false but reason (R) is true.b)Both Assertion (A) and reason (R) are true but reason (R) is not the correct explanation of Assertion (A).c)Assertion (A) is true but reason (R) is false.d)Both Assertion (A) and reason (R) are true and reason (R) is the correct explanation of Assertion (A).Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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