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Protists are eukaryotes Eukaryotes do ...

Protists are eukaryotes
Eukaryotes do not have the double membraned organelles.

A

If both As and R are correct and R is correct explanation of As

B

If both As and R are correct but R is not correct explanation of As

C

If As is correct, R is wrong

D

If both As and R are wrong.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason about protists and eukaryotes, we can follow these steps: ### Step 1: Analyze the Assertion The assertion states that "Protists are eukaryotes." - **Explanation**: Protists belong to the kingdom Protista, which includes unicellular eukaryotic organisms. Eukaryotes are characterized by having a true nucleus and membrane-bound organelles. ### Step 2: Determine the Truth of the Assertion - **Conclusion**: The assertion is **true** because protists are indeed classified as eukaryotes. ### Step 3: Analyze the Reason The reason states that "Eukaryotes do not have double membraned organelles." - **Explanation**: Eukaryotes are defined by the presence of a true nucleus and membrane-bound organelles, which can include double-membraned organelles such as mitochondria and chloroplasts. ### Step 4: Determine the Truth of the Reason - **Conclusion**: The reason is **false** because eukaryotes do have double-membraned organelles. ### Step 5: Final Evaluation - **Assertion**: True - **Reason**: False - Therefore, the correct conclusion is that the assertion is true, but the reason is false. ### Final Answer - The assertion is correct, but the reason is incorrect. ---
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$ Protists are unicellular eukaryotes. ! Eukaryotes do not have a nucleoid.

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$ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a eukaryotic nucleus and double membraned organelles.

Assertion : The cells that have membrane bound organelles are called eukaryotic. Reason : The cells that lack membrane bound organelles are called prokaryotic.

Which of these statements is/are true ? (i) The surface area avaiable for cellular function in a prokaryotic cell is less than that in a eukaryotic cell. (ii) The total genome size of a prokayotic cell is always less than that of a eukaryotic cell. (iii) Unlike eukaryotes, no special respiratory respiratory organelles are found in prokaryotes. Hence they respire at a much lesser rate than eukaryotes. (iv) Eukaryotic cells show various membrane bound organelles such as chloroplasts and nucles while ribosomes are the only membrane bound organelles found is prokaryotes.

Organelle covered by double membrane is

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Eukaryotes developed around

Prokaryotic and Eukaryotic Cell

DINESH PUBLICATION ENGLISH-ENVIRONMENTAL ISSUES-Assertion and reason
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  2. Nostoc has chloropyll "a" and phycocyanin pigments. Chlorophyll "a" ...

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  3. Protists are eukaryotes Eukaryotes do not have the double membraned ...

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  4. Euglena is biflagellated and has cell wall. Because cell wall is pre...

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  5. A: The Flagellum in protists is single stranded. R: Single stranded ...

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  6. A: Zygotic meiosis occurs at the time of germination of zygote. R: Z...

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  7. Meiosis is a requirements of sexual reproduction. Meiosis occurs in ...

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  8. $ In the cell wall of Dinoflagellates, there is present only one groov...

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  9. $ Euglena has mixotrophic nutrition. ! Mixtrophic nutrition means th...

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  10. Slime moulds are mainly saprophytic. Saprophytes get their nutrition ...

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  11. A: Forminiferans have a calcareous shell. R: Dimorphic nucleic are p...

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  12. $ Amoeba is a type of sporozoan. ! Sporozonas have two contractile v...

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  13. $ Fungi may be heterotrophic or autotrophic. ! Mycelium of Rhizopus ...

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  14. $ In basidiomycetes, there are present dolipore septa. ! Ascospores ...

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  15. Yeasts form a pseudomycelium. Yeast are prokaryotic.

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  16. $ In Basidiomycetes, there are preset dikaryotic cells called Synkaryo...

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  17. $ Mycorrhiza is a type of symbiosis. ! Lichens have phycobiont and m...

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  18. $ Puccinia graminis causes rust disease of wheat. ! Sexual reproduct...

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  19. $ That branch of science which deals with the study of Fungi is called...

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  20. $ Tracheophytes are the plants with vascular tissues. ! Tracheophyte...

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