Multiple choice

Match the List A with List B and select the correct answer using the codes given below. ||| |---|---| |List A (cell/ cell organelle) |List B (discovering scientists)| |P. Golgi apparatus|1. Plade| |Q. Ribosome|2. Bowman| |R. Nucleolus|3. Camillo| |S. Endoplasmic reticulum|4. Porter|

  1. P - 2, Q - 1, R - 4, S - 3

  2. P - 3, Q - 1, R - 2, S - 4

  3. P - 3, Q - 4, R - 1, S - 2

  4. P - 4, Q - 3, R - 2, S - 1

  5. P - 1, Q - 3, R - 2, S - 4
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B Correct answer
Explanation

The Golgi apparatus, first described by Camillo Golgi, consists of a system of membrane-bound vesicles arranged approximately parallel to each other in stacks called cisterns. These membranes often have connections with the membranes of ER and therefore constitute another portion of a complex cellular membrane system. Ribosomes are sub - microscopical dense granules about 150 to 2500 Angstrom in diameter and were seen by Plade in 1955 under electron microscope. The term Nucleolus was coined by Bowman in 1840. Endoplasmic reticulum was discovered and named so by Porter. Endoplasmic reticulum is an interconnected system of membrane-lined channels that runs through the cytoplasm. Hence, the correct answer using the codes is P - 3, Q - 1, R - 2, S - 4.

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