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DSSSB TGT Class9 Cell Basics — practice questions

Explore 2 free Class9 Cell Basics questions in DSSSB TGT Science. Open each question or exercise to read its content, reference answers and available explanation.

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Class9 Cell Basics questions and exercises with answers

Showing questions 1–2 of 2.

Which scientist first observed cells in cork slices?Read the answer and worked solution →A prokaryotic cell lacks:Read the answer and worked solution →

Worked practice questions

Which scientist first observed cells in cork slices?

  1. Robert Hooke
  2. Robert Brown
  3. Schleiden
  4. Schwann
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Correct answer: A. Robert Hooke

Robert Hooke (1665) observed dead cork tissue under a microscope, saw box-like compartments, and coined the term 'cell'.

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A prokaryotic cell lacks:

  1. Cell membrane
  2. Membrane-bound nucleus
  3. Cytoplasm
  4. DNA
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Correct answer: B. Membrane-bound nucleus

Prokaryotes (bacteria, archaea) have DNA but no membrane-bound nucleus. Eukaryotes have a defined nucleus enclosed in a membrane.

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