Questions: Which of the following generally defines the nucleolus? Location for ribosomal RNA synthesis Location for cytoskeleton synthesis Location for phospholipid synthesis Location for ATP synthesis

Which of the following generally defines the nucleolus? Location for ribosomal RNA synthesis Location for cytoskeleton synthesis Location for phospholipid synthesis Location for ATP synthesis
Transcript text: Which of the following generally defines the nucleolus? Location for ribosomal RNA synthesis Location for cytoskeleton synthesis Location for phospholipid synthesis Location for ATP synthesis
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Solution

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The answer is the first one: Location for ribosomal RNA synthesis.

Explanation for each option:

  1. Location for ribosomal RNA synthesis: This is correct. The nucleolus is a prominent sub-structure within the nucleus of eukaryotic cells where ribosomal RNA (rRNA) is synthesized and assembled with proteins to form ribosomal subunits.

  2. Location for cytoskeleton synthesis: This is incorrect. The cytoskeleton is composed of proteins such as actin, tubulin, and intermediate filaments, which are synthesized in the cytoplasm, not in the nucleolus.

  3. Location for phospholipid synthesis: This is incorrect. Phospholipid synthesis primarily occurs in the endoplasmic reticulum and the Golgi apparatus, not in the nucleolus.

  4. Location for ATP synthesis: This is incorrect. ATP synthesis occurs mainly in the mitochondria through the process of oxidative phosphorylation, not in the nucleolus.

Summary: The nucleolus is primarily responsible for the synthesis of ribosomal RNA, making the first option the correct answer.

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