1. | Ribosomes | 2. | Mesosomes |
3. | Golgi Apparatus | 4. | Centrosomes |
1. | Membrane bound vesicular structure |
2. | Chain of many ribosomes attached to a single mRNA |
3. | special structure formed by the extension of plasma membrane |
4. | medium sized chromosome |
Which of the following nucleic acids is present in an organism having 70 S ribosomes only?
1. | Single-stranded DNA with a protein coat |
2. | Double-stranded circular naked DNA |
3. | Double-stranded DNA enclosed in nuclear membrane |
4. | Double-stranded circular DNA with histone proteins |
Which of the following components provides sticky character to the bacterial cell?
1. Nuclear membrane
2. Plasma membrane
3. Glycocalyx
4. Cell Wall
Select the wrong statement:
1. | Bacterial cell wall is made up of peptidoglycan |
2. | Pili and fimbriae are mainly involved in the motility of bacterial cells |
3. | Cyanobacteria lack flagellated cells |
4. | Mycoplasma is a wall-less microorganism |
The structures that help some bacteria to attach to rocks and/or host tissues are?
1. Rhizoids
2. Fimbriae
3. Mesosomes
4. Holdfast
Which of the following structures performs the function of mitochondria in a bacteria?
1. | Nucleoid | 2. | Ribosomes |
3. | Cell wall | 4. | Mesosomes |
Chromosomes in a bacterial cell can be 1–3 in number and:
1. | Are always circular |
2. | Are always linear |
3. | Can be either circular or linear, but never both within the same cell |
4. | Can be circular as well as linear within the same cell |