Q. No.Stroma in the chloroplasts of higher plant contains
1. ChlorophyII
2. Light-independent reaction enzymes
3. Light-dependent reaction enzymes
4. Ribosomes
1. ChlorophyII
2. Light-independent reaction enzymes
3. Light-dependent reaction enzymes
4. Ribosomes
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Middle lamella is composed mainly of
| 1. | Phosphoglycerides | 2. | Hemicellulose |
| 3. | Muramic acid | 4. | Calcium pectate |
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The plasma membrane consists mainly of
1. Proteins embedded in a phospholipid bilayer
2. Proteins embedded in a polymer of glucose molecules
3. Proteins embedded in a carbohydrate bilayer
4. Phospholipids embedded in a protein bilayer
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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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Important site for formation of glycoproteins and glycolipids is
1. Vacuole
2. Golgi apparatus
3. Plastid
4. Lysosome
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Peptide synthesis inside a cell takes place in
1. Chloroplast
2. Mitochondria
3. Chromoplast
4. Ribosomes
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Which one of the following organisms is not an example of eukaryotic cells ?
1. Paramecium caudatum
2. Escherichia coli
3. Euglena viridis
4. Amoeba proteus
In eubacteria, a cellular component that resembles eukaryotic cells is
| 1. | Plasma membrane | 2. | Nucleus |
| 3. | Ribosomes | 4. | Cell wall |
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What is true about ribosomes?
| 1. | The prokaryotic ribosomes are 80S, where "S" stands for sedimentation coefficient |
| 2. | These are composed of ribonucleic acid and proteins |
| 3. | These are found only in eukaryotic cells |
| 4. | These are self-splicing introns of some RNAs |
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