Q. No.Which one of the following has its own DNA?
1. Mitochondria
2. Dictyosome
3. Lysosome
4. Peroxisome
Important site for formation of glycoproteins and glycolipids is
1. Golgi apparatus
2. plastid
3. Lysosome
4. vacuole
Which one of the following structures between two adjacent cells is an effective transport
pathway?
| 1. | Plasmodesmata | 2. | Plastoquinones |
| 3. | Endoplasmic rcticulum | 4. | Plasmalemma |
The main arena of various types of activities of a cell is
1. plasma membrane
2. mitochondrion
3. cytoplasm
4. nucleus
Select the correct statement from the following regarding cell membrane.
1.
Na+ and K ions move across cell membrane by passive transport
2.
Proteins make up 60 to 70% of the cell membrane
3.
Lipids are arranged in a bilayer with polar heads towards the inner part
4.
Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
The plasma membrane consists mainly of
| 1. | phospholipids embedded in a protein bilayer |
| 2. | proteins embedded in a phospholipid bilayer |
| 3. | proteins embedded in a polymer of glucose molecules |
| 4. | proteins embedded in a carbohydrate bilayer |
Peptide synthesis inside a cell takes place in
1. mitochondria
2. chromoplast
3. ribosomes
4. chloroplast
Which one of the following also act as a ribozyme in a bacterial cell?
1. snRNA
2. hn RNA
3. 23 S rRNA
4. 5 S rRNA
Stroma in the chloroplasts of higher plants contains
| 1. | light-independent reaction enzymes |
| 2. | light-dependent reaction enzymes |
| 3. | ribosomes |
| 4. | chlorophyll |
In eubacteria, a cellular component that resembles eukaryotic cells is
1. nucleus
2. ribosomes
3. cell wall
4. plasma membrane
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