NEET-UG Biology · Class 11
Prokaryotic cell and its envelopes — NEET & JEE Questions
Prokaryotic cell and its envelopes is a topic in Cell: The Unit of Life, a Class 11 Biology chapter of the NEET-UG syllabus. TestBudy holds 12 published NEET-UG questions on Prokaryotic cell and its envelopes, each with the marking scheme of the real paper.
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Prokaryotic cell and its envelopes MCQs with solutions
10 of the 12 published questions on this topic, exactly as they appear in a test. Answers and worked solutions come with your result rather than on this page.
What is the DNA-containing region of a typical prokaryotic cell called?
- A. Nucleolus
- B. Nucleoid
- C. Centrosome
- D. Vacuole
What is the usual order of the bacterial cell envelope from outside to inside?
- A. Cell wall, glycocalyx, plasma membrane
- B. Glycocalyx, cell wall, plasma membrane
- C. Plasma membrane, cell wall, glycocalyx
- D. Glycocalyx, plasma membrane, cell wall
A specialised membranous structure in a prokaryotic cell which helps in cell well wall formation, DNA replication and respiration is
- A. Cristae
- B. Endoplasmic Reticulum
- C. Mesosome
- D. Chromatophores
Which feature best distinguishes a typical prokaryotic cell from a eukaryotic cell?
- A. Absence of a membrane-bound nucleus
- B. Presence of ribosomes
- C. Presence of plasma membrane
- D. Presence of DNA
A bacterium retains its shape after loss of the external slime layer but bursts in a strongly hypotonic medium after its rigid layer is removed. Which structure was removed in the second treatment?
- A. Cell wall
- B. Glycocalyx
- C. Plasma membrane
- D. Flagellum
A prokaryotic cell has numerous small circular DNA molecules in addition to its main chromosome. What are these extra DNA molecules called?
- A. Plasmids
- B. Nucleosomes
- C. Centrioles
- D. Cristae
Mesosome in a cell is a :
- A. Membrane bound vesicular structure
- B. Chain of many ribosomes attached to a single mRNA
- C. Special structure formed by extension of plasma membrane
- D. Medium sized chromosome
Given below are two statements : Statement I :- In bacteria, the mesosomes are formed by the extensions of plasma membrane. Statement II :- The mesosomes, in bacteria, help in DNA replication and cell wall formation. In the light of the above statements, choose the most appropriate answer from the options given below:
- A. Statement I is correct but Statement II is incorrect.
- B. Statement I is incorrect but Statement II is correct.
- C. Both Statement I and Statement II are correct.
- D. Both Statement I and Statement II are incorrect.
Cell X has a nucleoid, 70S ribosomes and no membrane-bound organelles. Cell Y has a nucleus, mitochondria and 80S cytoplasmic ribosomes. Which interpretation is correct?
- A. X is prokaryotic and Y is eukaryotic
- B. Both are prokaryotic
- C. X is eukaryotic and Y is prokaryotic
- D. Both are eukaryotic
A bacterial cell is placed in a hypotonic medium but does not burst. Which structure most directly resists excessive expansion?
- A. Cell wall
- B. Nucleoid
- C. Ribosome
- D. Plasmid
Common mistakes in Prokaryotic cell and its envelopes
Recorded against questions in this topic that are not shown above, so none of these points at an answer you can see on this page.
- Places the plasma membrane outside the wall or treats the nucleoid as part of the envelope.
- Assumes a membrane alone can always withstand large osmotic water influx.
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