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.

I and II are wrong; III is correct

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I is correct; II and III are wrong

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I and II are correct; III is wrong

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I, II and III are correct

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Solution

The correct option is D I, II and III are correct
Prokaryotes are generally smaller and differ from eukaryotic cells in terms of structural elements and genetic processes e.g., bacteria, blue-green algae, mycoplasma, etc.
Unlike eukaryotes, prokaryotes lack a true nucleus, a nucleus membrane and the membrane bound organelles (mitochondria, chloroplast, Golgi bodies, ER)
Ribosomes are 70 S type in prokaryotes, while it is 80 S in eukaryotes although 70 S type in prokaryotes, while it is 80 S in eukaryotes although 70 S type of ribosomes are found in mitochondria and chloroplast of eukaryotic cell.

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Similar questions

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.

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. How many of the cell organelles have no membrane in a eukaryotic plant cell? Ribosome, Chloroplast, Mitochondria, Endoplasmic Reticulum, Golgi bodies.

Q. Which of these statements is/are true?

(i) The surface area available for cellular functions in a prokaryotic cell is less than that in a eukaryotic cell.
(ii) The total genome size of a prokaryotic cell is always less than that of a eukaryotic cell.
(iii) Unlike eukaryotes, no special respiratory organelles are found in prokaryotes. Hence they respire at a much less rate than eukaryotes.
(iv) Eukaryotic cells show various membrane-bound organelles such as chloroplasts and nucleus while ribosomes are the only membrane-bound organelles found in prokaryotes.

Question 3
Read the different combinations of terms given below:

(a) cell wall, cell membrane, nucleus, plastid
(b) cell wall, nucleus, ribosome, chromosome
(c) cell membrane, mitochondria, ribosome, chromosome
(d) cell membrane, ribosome, mitochondria, chloroplast

The correct combination of terms with reference to an animal cell is ___.

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