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Question

Prokaryotes are characterized by
  1. A true nucleus with double layered nuclear membrane is absent.
  2. Presence of cell wall made of mucopolysaccharides and absence of cell organelles like mitochondria and chloroplasts.
  3. Well developed nucleus with double layered nuclear membrane present.
  4. Autotrophic in nature and only DNA is present.

A
A true nucleus with double layered nuclear membrane is absent.
B
Well developed nucleus with double layered nuclear membrane present.
C
Presence of cell wall made of mucopolysaccharides and absence of cell organelles like mitochondria and chloroplasts.
D
Autotrophic in nature and only DNA is present.
Solution
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Prokaryotes lack membrane bound organelles like nucleus, mitochondria and chloroplast. Prokaryotic cells are unicellular organisms, which reproduce through binary fission. In some cases, few prokaryotic organisms also reproduce by budding. Prokaryotic cells have a cell envelope, which generally consists of a capsule, cell wall (chitin and mucopolysaccharides), cytoplasm, plasma membrane, cytoplasm region or nucleoid region, ribosome, plasmids, pili and flagella. They are autotrophs, phototrophs, chemotrophs and heterotrophs.
Thus, the correct answer is option (C).

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Similar Questions
Q1
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.
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Q2
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.
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Q3

Question 6

Which of the following features is common to prokaryotes and many eukaryotes?

(a) Chromatin material present

(b) Cell wall present

(c) Nuclear membrane present

(d) Membrane bound sub-cellular organelles present

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Q4
Chloroplasts have a double layered cell membrane.
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Q5
Which of the following are present only in plant cells?
I. A nucleus II. A cell wall III. A cell membrane IV. Cytoplasm V. Chloroplasts.
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