Which structural component of a prokaryotic cell exhibits the highest resistance to lysozyme digestion?
Gram-positive cell wall
Gram-negative cell wall
Mycoplasma membrane
Bacterial capsule
Related Questions
Which of the following statements are correct about prokaryotic cells?
I. DNA lies freely in the cytoplasm, not associated with any organelle
II. The amount of DNA do not change as there are no haploid and diploid stages
III. Transcription and translation occurs in the cytoplasm
IV. Protein synthesis occurs only in the cytoplasm
Correct option regarding the above statement is
I, II and III
I and II
Only I
I, II, III and IV
Which of the following statement is correct about the cell wall of prokaryotic cell?
I. Cell wall, if present, possesses muramic acid
II. Cell wall, if presents, possesses acitic acid
III. Cell wall is always absent
The correct options is
I only
II only
III only
I and II
Which of the following statement is not correct for prokaryotic cell?
Prokaryotes have no chromosomes and therefore, lack DNA
Prokaryotic flagella are similar in structure to eukaryotic flagella
Because prokaryotes do not contain organelles, they cannot perform photosynthesis or carry out cellular respiration
All of the above
Most of the bacterial cell envelope consists of
Cell membrane
Cell wall
Capsule
Cytoplasm
In , fimbriae takes part in β¦Aβ¦, while in it helps in β¦Bβ¦ Choose appropriate options for A and B to complete the given statement
A-conjugation; B-attachment
A-attachment; B-conjugation
A-movement only; B-conjugation
A-attachment; B-movement only
Which of the following statements about inclusion bodies is incorrect ?
They are not bound by any membrane
These are involved in ingestion of food particles
They lie free in the cytoplasm
These represent reserve material in cytoplasm
In prokaryotic cell,
I. enveloped genetic material is present
II. ribosomes are absent
III. an organised nucleus is absent
The correct option is
Only I
Only II
Only III
I, II and III
Which of the following statements are correct about prokaryotic genetic material (DNA)?
I. DNA is naked, that is without histones
II. DNA is usually circular/single chromosome
III. Outside the genomic DNA, small circular DNA is also present in many bacteria
IV. The smallest DNA are called plasmids
I and II
I and III
Only I
I, II, III and IV
Arrange the following steps in a correct sequence as per Gramβs staining technique
I. Treatment with 0.5% iodine solution
II. Washing with water
III. Treatment with absolute alcohol/acetone
IV. Staining with weak alkaline solution of crystal violet
The correct sequence is
IIIIVIII
IVIIIIII
IIIIIIIV
IIVIIIII
In prokaryotes, chromatophores are
Specialised granules responsible for colouration of cells
Structures responsible for organising the shape of the organism
Incusion bodies lying free inside the cells for carrying out various metabolic activities
Internal membrane system that may become extensive and complex in photosynthetic bacteria
