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.

a and b are wrong, c is correct

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a is correct, b and c are wrong

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a and b are correct, c is wrong

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a and c are correct, b is wrong

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a, b and c are wrong

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Solution

The correct option is B a and b are wrong, c is correct
Pilus refers to a thin and rigid hair-like appendage that protrudes from the cell surface of bacteria (prokaryotic cell) and is responsible for bacterial conjugation.
They are absent in eukaryotic cells.
The ribosomes present in a bacteria and the cellular organelles (mitochondria and chloroplasts) are 70S type and those present in a eukaryotic cell (both plants and animals) are 80S type.
So, the correct answer is 'a and b are wrong, c is correct'.

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Similar questions

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 prokaryotic cell, the ribosome is of 70 S type and in mitochondria of eukaryotic animal cell, the ribosome is of 80 S type.

Q. Read the following statements and identify the correct option(s) given.
I. A prokaryotic cell lack nuclear membrane, chloroplasts, mitochondria, microtubules and different kinds of pili.
II. In a 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 the eukaryotic animal cell, the ribosome is of the 80S type.

The parts which are not present in an animal cell are :
A. Cell membrane
B. Chloroplast
C. Cell wall
D. Mitochondria

Q. Mark the following statements 'true' or false. Rewrite the wrong ones correctly.
(a) All cells have nuclei.
(b) Chloroplasts are present in all plant cells.
(c) Animal cells usually do not have vacuoles.
(d) Animal and plant cells have cell membranes.
(e) Ribosomes are called 'suicide bags'.
(f) The cell wall is made of cellulose which is a living substance.
(g) The cell membrane is freely permeable to all substances.
(h) All living organisms are made up of cells.
(i) Structures present in the cell are called organs.
(j) Cell respiration takes place in mitochondria.

Q. Mitochondria and chloroplasts are suggested to have evolved from symbiotic prokaryotes present in primitive eukaryotic cells. One evidence for this is that:

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