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Both Chlamydomonas and Chlorella are autotrophic and both have a cell wall, whereas both Paramoecium and Amoeba are heterotrophic and both lack cell wall, then why did R.H. Whittaker place all of them under the same kingdom?
  • a)
    Because all of them are single celled organisms
  • b)
    Because all of them do not have nuclear membrane and other membrane bound cell organelles
  • c)
    Because all of them have cell membrane
  • d)
    Both because all of them are single celled organisms and because all of them do not have nuclear membrane and other membrane bound cell organelles
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Both Chlamydomonas and Chlorella are autotrophic and both have a cell...
Reasoning behind placing Chlamydomonas, Chlorella, Paramoecium, and Amoeba under the same kingdom:
Chlamydomonas, Chlorella, Paramoecium, and Amoeba are all single-celled organisms with distinct characteristics that led R.H. Whittaker to place them under the same kingdom. Here are the key points to consider:

Autotrophic vs. Heterotrophic:
- Chlamydomonas and Chlorella are autotrophic, meaning they can produce their own food through photosynthesis.
- Paramoecium and Amoeba are heterotrophic, relying on external sources for nutrition.

Presence of a Cell Wall:
- Both Chlamydomonas and Chlorella have cell walls, providing structural support and protection.
- Paramoecium and Amoeba lack a cell wall, allowing for more flexibility in shape and movement.

Single-celled Organisms:
- All four organisms are single-celled, meaning they consist of only one cell performing all necessary functions for survival.

Classification Based on Common Traits:
- Despite differences in nutrition and cell wall presence, the commonality of being single-celled organisms may have influenced their placement in the same kingdom by R.H. Whittaker.
Therefore, the primary reason for grouping Chlamydomonas, Chlorella, Paramoecium, and Amoeba under the same kingdom is their shared characteristic of being single-celled organisms, despite variations in autotrophic/heterotrophic nature and cell wall presence.
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Both Chlamydomonas and Chlorella are autotrophic and both have a cell...
Protista is diverse group of eukaryotic organism. All single celled eukaryotes are classified in Protista. Since, there is no tissue or organ level organization in protists, it is separated from other complex eukaryotes. Hence, Chlamydomonas and Chlorella (algae and autotrophic) and Paramoecium and Amoeba (heterotrophic) are all placed under kingdom Protista.
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Both Chlamydomonas and Chlorella are autotrophic and both have a cell wall, whereas both Paramoecium and Amoeba are heterotrophic and both lack cell wall, then why did R.H. Whittaker place all of them under the same kingdom?a)Because all of them are single celled organismsb)Because all of them do not have nuclear membrane and other membrane bound cell organellesc)Because all of them have cell membraned)Both because all of them are single celled organisms and because all of them do not have nuclear membrane and other membrane bound cell organellesCorrect answer is option 'A'. Can you explain this answer?
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Both Chlamydomonas and Chlorella are autotrophic and both have a cell wall, whereas both Paramoecium and Amoeba are heterotrophic and both lack cell wall, then why did R.H. Whittaker place all of them under the same kingdom?a)Because all of them are single celled organismsb)Because all of them do not have nuclear membrane and other membrane bound cell organellesc)Because all of them have cell membraned)Both because all of them are single celled organisms and because all of them do not have nuclear membrane and other membrane bound cell organellesCorrect answer is option 'A'. 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 Both Chlamydomonas and Chlorella are autotrophic and both have a cell wall, whereas both Paramoecium and Amoeba are heterotrophic and both lack cell wall, then why did R.H. Whittaker place all of them under the same kingdom?a)Because all of them are single celled organismsb)Because all of them do not have nuclear membrane and other membrane bound cell organellesc)Because all of them have cell membraned)Both because all of them are single celled organisms and because all of them do not have nuclear membrane and other membrane bound cell organellesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Both Chlamydomonas and Chlorella are autotrophic and both have a cell wall, whereas both Paramoecium and Amoeba are heterotrophic and both lack cell wall, then why did R.H. Whittaker place all of them under the same kingdom?a)Because all of them are single celled organismsb)Because all of them do not have nuclear membrane and other membrane bound cell organellesc)Because all of them have cell membraned)Both because all of them are single celled organisms and because all of them do not have nuclear membrane and other membrane bound cell organellesCorrect answer is option 'A'. Can you explain this answer?.
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