Class 11 · Cell: The Unit of Life

Unicellular vs Multicellular Organisms — NEET Biology

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All organisms are composed of cells. Some are composed of a single cell and are called unicellular organisms while others, like us, composed of many cells, are called multicellular organisms.

NCERT Biology · Class 11 · Chapter 8 · Paragraph 4
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Consider the following statements: 1. Escherichia coli contains plasmids that may confer antibiotic resistance. 2. Chlamydomonas is a unicellular green alga having a single chloroplast per cell. 3. The ostrich egg is the largest isolated single cell. 4. Nerve cells are among the longest cells in multicellular organisms. 5. Paramecium moves with the help of flagella that show a 9+2 arrangement of microtubules. Which of the above statements are correct?

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