Question

Q1.Non membrane bound pair of cell organelles among the following
(A) Chloroplast, mitochondria
(B) ER. Golgi apparatus
(C) Nucleus, vacuole
(D) Centriole, Ribosome
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Answer 1

Explanation:

Among the options, Centriole And Ribosome (OPTION D) are non membrane bound organelles.

Detailed discussion:

• Ribosome are small spherical cellular organelles, responsible for protein synthesis inside the cell.
• The ribosomes contain two subunits (for eukaryotes, the subunits are 40S and 60S) and (for prokaryotes, the subunits are 50S and 30S).
• The ribosomes attach to the mRNA chain and form a structure known as POLYSOME.

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• Centrioles are paired structures, which are barrel shaped located in the cytoplasm of the cell.
• They help to organise the microtubules inside the cells, hence maintain the cytoskeletal framework of the cell.

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Answer 2

Answer:

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