Q. No.Which one of the following cellular parts is correctly described ?
1. Thylakoids - flattened membranous sacs forming the grana of chloroplasts
2. Centrioles - sites for active RNA synthesis
3. Ribosomes - those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s)
4. Lysosomes - optimally active at a pH of about 8.5
1. Thylakoids - flattened membranous sacs forming the grana of chloroplasts
2. Centrioles - sites for active RNA synthesis
3. Ribosomes - those on chloroplasts are larger (80s) while those in the cytoplasm are smaller (70s)
4. Lysosomes - optimally active at a pH of about 8.5
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Which one of the following organelle in the figure correctly matches with its function?
1. Golgi apparatus, protein synthesis
2. Golgi apparatus, formation of glycolipids
3. Rough endoplasmic reticulum, protein synthesis
4. Rough endoplasmic reticulum, formation of glycoproteins
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Which structures perform the function of mitochondria in bacteria?
| 1. | Nucleoid | 2. | Ribosomes |
| 3. | Cell wall | 4. | Mesosomes |
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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) |
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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 |
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A cell organelle containing hydrolytic enzymes is
| 1. | mesosome | 2. | lysosome |
| 3. | microsome | 4. | ribosome |
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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
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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 |
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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
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