Q. No.Prokaryotic and eukaryotic flagella differ in
1. Type of movement and placement
2. Location and mode of functioning
3. Microtubular structure and function
4. Microtubular organisation and type of movement
1. Type of movement and placement
2. Location and mode of functioning
3. Microtubular structure and function
4. Microtubular organisation and type of movement
Which of the following statement about cilia is not correct?
1. Organised beating of cilia is controlled by fluxes of Ca2+ across the membrane.
2. Cilia are hair like cellular appendages.
3. Cilia contain an outer ring of nine doublet microtubules surrounding two singlet microtubules.
4. Microtubules of cilia are composed of tubulin.
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Polysome is formed by
1. A ribosome with several subunits
2. Ribosomes attached to each other in a linear arrangement
3. Several ribosomes attached to a single mRNA
4. Many ribosomes attached to a strand of endoplasmic reticulum
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Which one of the following structures between two adjacent cells is an effective transport pathway ?
| 1. | Plastoquinones | 2. | Endoplasmic reticulum |
| 3. | Plasmalemma | 4. | Plasmodesmata |
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In eubacteria, a cellular component that resembles eukaryotic cells is
| 1. | Plasma membrane | 2. | Nucleus |
| 3. | Ribosomes | 4. | Cell wall |
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
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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
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