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Prokaryotic & Eukaryotic Cells

ribosomes in ...

Question

ribosomes in prokryotic cells are attached to plasma membrane? explai

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Solution

As the prokaryotic cells lack endoplasmic reticulum like eukaryotic cells to which the ribosomes are attached in eukaryotic cells, so ribosomes are attached to the plasma membrane in prokaryotic cells and act as the sites of protein synthesis.

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Q. Assertion :Ribosomes are non-membrane bound organelles found in the prokaryotic cells only. Reason: Ribosomes are present only in the cytoplasm.

Q. Plasma membrane covers the cell wall in prokaryotic cells.

Q. Which is correct option amongst the following statements?
(a) Nuclear membrane, chloroplast, mitochondria, microtubules and pili are absent in prokaryotic cells.
(b) Nuclear membrane, chloroplast, mitochondria, microtubules and pili are present in eukaryotic cells
(c) Ribosomes are 70S in prokaryotic cells and mitochondria. They are 80 S in animal cells.

Q. The extensions of plasma membrane into the cells of prokaryotes are found in the form of?

Q. Read the following statements and identify the correct option given.

I. In prokaryotic cell, the nuclear membrane, chloroplast, mitochondria, microtubules, and different kinds of pili are absent.
II. In eukaryotic cell, the nuclear membrane, chloroplast, mitochondria, and pili are present.
III. In a prokaryotic cell, the ribosome is of 70S type and in mitochondria of eukaryotic animal cell, the ribosome is 80S type.

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