Element necessary for the middle lamella:
1. Ca
2. Zn
3. K
4. Cu
Middle lamella is mainly composed of:
1. hemicellulose
2. muramic acid
3. calcium pectate
4. phosphoglycerides
Plasmodesmata are:
| 1. | lignified cemented layers between cells |
| 2. | locomotory structures |
| 3. | membranes connecting the nucleus with plasmalemma |
| 4. | connections between adjacent cells |
Which one of the following structures between two adjacent cells is an effective transport pathway?
1. Plasmodesmata
2. Plastoquinones
3. Endoplasmic reticulum
4. Plasmalemma
Alage have cell wall made up of:
| 1. | Cellulose, galactans and mannans |
| 2. | Hemicellulose, pectins and proteins |
| 3. | Pectins, cellulose and proteins |
| 4. | Cellulose, hemicellulose and pectins |
Which of the following is not true of a eukaryotic cell?
| 1. | Cell wall is made up of peptidoglycans |
| 2. | It has 80S type of ribosome present in the cytoplasm |
| 3. | Mitochondria contain circular DNA |
| 4. | Membrane bound organelles are present |