Which structures perform the function of mitochondria in bacteria?
| 1. | Nucleoid | 2. | Ribosomes |
| 3. | Cell wall | 4. | Mesosomes |
Match the following and select the correct answer :
| (a) | Centriole | (i) | Infoldings in mitochondria |
| (b) | Chlorophyll | (ii) | Thylakoids |
| (c) | Cristae | (iii) | Nucleic acids |
| (d) | Ribozymes | (iv) | Basal body cilia or flagella |
| A | B | C | D | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (i) | (ii) | (iv) | (iii) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (iv) | (iii) | (i) | (ii) |
Identify the correct order of organisation of genetic material from largest to smallest:
| 1. | Genome, chromosome, nucleotide, gene |
| 2. | Genome, chromosome, gene, nucleotide |
| 3. | Chromosome, genome, nucleotide, gene |
| 4. | Chromosome, gene, genome, nucleotide |
Which one of the following cell organelles is enclosed by a single membrane?
| 1. | Nuclei | 2. | Mitochondria |
| 3. | Chloroplasts | 4. | Lysosomes |
A cell organelle containing hydrolytic enzymes is
| 1. | mesosome | 2. | lysosome |
| 3. | microsome | 4. | ribosome |
Ribosomes are non-membrane bound organelles found in:
| 1. | All prokaryotic cells only |
| 2. | All eukaryotic cells only |
| 3. | All somatic cells in eukaryotic organisms only |
| 4. | All cells |
A non-membrane bound organelle found in animal cells that helps in cell division would be:
| 1. | Centromere | 2. | Centrosome |
| 3. | Basal body | 4. | Fimbriae |
The genomic DNA of a bacterial cell is:
| 1. | circular and located on a single chromosome |
| 2. | circular and located on multiple chromosomes |
| 3. | linear and located on a single chromosome |
| 4. | linear and located on multiple chromosomes |
A ‘slime layer’ or a ‘capsule’ is a modification of which of the following layers of the cell envelope of a prokaryotic cell?
| 1. | Glycocalyx | 2. | Cell wall |
| 3. | Lipoprotein layer | 4. | Cell membrane |
The surface appendage on the bacterial cells that helps in conjugation is:
| 1. | Flagellum | 2. | Fimbria |
| 3. | Pilus | 4. | Cilia |