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Assertion:- All the organelles of eukary...

Assertion:- All the organelles of eukaryotic cells are surrounded by either single or double membrane.
Reason:- In eukaryotic cell none of cell organelle can work and exist without mimbrane.

A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Assertion**: The assertion states that all organelles of eukaryotic cells are surrounded by either a single or double membrane. 2. **Evaluating the Assertion**: This statement is false because not all organelles in eukaryotic cells have membranes. For example, ribosomes are considered organelles but do not have a surrounding membrane. They exist freely in the cytoplasm and on the rough endoplasmic reticulum. 3. **Understanding the Reason**: The reason provided states that in eukaryotic cells, none of the organelles can work and exist without a membrane. 4. **Evaluating the Reason**: This statement is also false. Ribosomes, which are membrane-less organelles, exist in both prokaryotic and eukaryotic cells and perform essential functions, such as protein synthesis. Therefore, the reason does not hold true. 5. **Conclusion**: Since both the assertion and the reason are false, we conclude that the correct answer is that both statements are incorrect.
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ALLEN-CELL BIOLOGY (CELL STRUCTURE, FUNCTION & CELL DIVISION)-EXERCISE-IV (Assertion & Reason) (Directions for Assertion & Reason questions)
  1. Read the assertion and reason carefully to mark the correct option in ...

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  2. Assertion:- All the organelles of eukaryotic cells are surrounded by e...

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  3. Read the assertion and reason carefully to mark the correct option in...

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  4. Assertion:- Cell wall is not only a structural component but also show...

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  5. Assertion : The endomembrane system includes endoplasmic reticulum (ER...

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  6. Assertion:- Smooth endoplasmic reticulum is frequently observed in pro...

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  7. Read the assertion and reason carefully to mark the correct option in ...

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  8. Assertion:- H^(+) pump of the membranes essentially work for lysosoml ...

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  9. Assertion:- Vacuoles are osmoregulatory components of cell. Reason:-...

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  10. Assertion:- Centrioles are essential for mintenance of confinuity of c...

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  11. Assertion:- Macromolecules are able to move through pores. Reason:-...

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  12. A:centriole does not form any compartment in a cell ltBRgtR: centriole...

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  13. Assertion:- A single human cell has approximately two meter long threa...

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  14. Assertion:- All eukaryotic cells are not identical. Reason:- Centrio...

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  15. Assertion:- Eukaryotic ribosomes are 80 S type. 'S' indirectly measu...

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  16. Assertion: Mitochondria are considered as prokaryotic endosymbiont of...

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  17. Assertion: Nucleus controls the metabolic activities of cytoplasm. R...

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  18. Assertion: Peroxysomes are called as suicidal bag. Reason: Peroxysom...

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  19. Assertion: Chloroplasts are known as semiautonomus cell organelle. R...

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  20. Assertion:- Ribosomes are involved in protein synthesis. Reason:- Th...

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