1. Golgi apparatus
2. plastid
3. lysosome
4. vacuole
| 1. | mitochondria | 2. | chromoplast |
| 3. | ribosomes | 4. | chloroplast |
Which one of the following has its own DNA?
1. Mitochondria
2. Dictyosome
3. Lysosome
4. Peroxisome
The main arena of various types of activities of a cell is:
| 1. | Plasma membrane | 2. | Mitochondria |
| 3. | Cytoplasm | 4. | Nucleus |
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 |
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 |
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 |
The cytoskeleton is made up of:
| 1. | calcium carbonate granules |
| 2. | callose deposits |
| 3. | cellulosic microfibrils |
| 4. | proteinaceous filaments |
| 1. | several ribosomes attached to a single mRNA |
| 2. | many ribosomes attached to a strand of endoplasmic reticulum |
| 3. | a ribosome with several subunits |
| 4. | ribosomes attached in a linear arrangement |