| 21. | Which one of the following organisms acts as a biofertilizer for rice crop? |
A. blue green algae | |
B. rhizobium species | |
C. fungus root fungus | |
D. azetobacter |
| 22. | The name of the unicellular alga used to control the supply of oxygen in space programs is- |
A. ulothrix | |
B. spirogyra | |
C. chlorella | |
D. odogonium |
| 23. | The red color of the Red Sea is due to the presence of |
A. Maus | |
B. Algae | |
C. fungus | |
D. bacteria |
| 24. | What is agar-agar prepared from? |
A. Algae | |
B. lichen | |
C. fungus | |
D. bryophyta |
| 25. | What are the non-green heterotrophic plants of the plant kingdom? |
A. algae | |
B. Fungi | |
C. mosses | |
D. fern |
| 26. | What is the cell wall of fungi made of? |
A. lipidus | |
B. cellulose | |
C. protein | |
D. chitin and hemicellulose |
| 27. | In what form are reserve food substances stored by fungi? |
A. as glycogen | |
B. in the form of oil | |
C. as starch | |
D. in the form of alcohol |
| 28. | All fungi are always |
A. parasite | |
B. autotrophic | |
C. heterotrophic | |
D. saprophyte |
| 29. | Mycorrhizae have a symbiotic relationship – |
A. between algae and bryophytes | |
B. between the roots of fungi and higher plants | |
C. between the roots of algae and gymnosperms | |
D. between algae and fungi |
| 30. | The fungi that grow on the barks of trees are called – |
A. corticols | |
B. Juphilus | |
C. Saxicols | |
D. coprophilus |