Plasmodesmata are
1. Connections between adjacent plant cells
2. Lignified cemented layers between cells
3. Locomotory structures
4. Membranes connecting the nucleus with plasmalemma
Stroma in the chloroplasts of higher plant contains
1. ChlorophyII
2. Light-independent reaction enzymes
3. Light-dependent reaction enzymes
4. Ribosomes
Middle lamella is composed mainly of
1. | Phosphoglycerides | 2. | Hemicellulose |
3. | Muramic acid | 4. | Calcium pectate |
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
Which one of the following structures between two adjacent cells is an effective transport pathway ?
1. | Plastoquinones | 2. | Endoplasmic reticulum |
3. | Plasmalemma | 4. | Plasmodesmata |
Important site for formation of glycoproteins and glycolipids is
1. Vacuole
2. Golgi apparatus
3. Plastid
4. Lysosome
Peptide synthesis inside a cell takes place in
1. Chloroplast
2. Mitochondria
3. Chromoplast
4. Ribosomes
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 |
Ribosomal RNA is actively synthesized in
1. Lysosomes
2. Nucleolus
3. Nucleoplasm
4. Ribosomes