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Gram +ve/-ve Bacteria

The nuclear m...

Question

The nuclear membrane is_i_ in the cells of prokaryotes. It isii in the cells of eukaryotes.

The information in which alternative completes the given statements?

A

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B

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C

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D

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Solution

The correct option is B

Prokaryotes such as bacteria lack well-defined nuclear membrane around the nuclear region. Their genetic material is present in the cytoplasm of the cell. This undefined nuclear region containing nucleic acids is known as nucleoid.

Eukaryotes have a well-defined nucleus. The chromatin network is surrounded by a nuclear membrane.

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Q. ___ cells lack a nuclear membrane. (Prokaryotic/Eukaryotic)

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.

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. 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.

The plasma membrane of the cell is made up of____i____and___ii___

The information in which alternative completes the given statement?

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