Q. No.Which of the following does not relate to heterotrophic bacteria?
1.
They are important decomposers.
2.
They are helpful in making curd from milk, production of antibiotics and fixing nitrogen in legume roots.
3.
Some are pathogens causing damage to human beings, crops, farm animals and pets.
4.
Almost all help in recycling nutrients like nitrogen, phosphorus, iron and sulphur.
In NCERT textbook which of the following are not included in Kingdom Protista?
| 1. | Chrysophytes | 2. | Dinoflagellates |
| 3. | Protozoa | 4. | Blue green algae |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Consider the given statements regarding slime moulds:
| Statement I: | Under unfavourable conditions they form a plasmodium. |
| Statement II: | During favourable conditions, the plasmodium differentiates and forms fruiting bodies bearing spores at their tips. |
| Statement III: | The spores bear true walls. |
| Statement IV: | The spores are dispersed by water. |
1. Only Statement I and Statement II are correct
2. Only Statement III is correct
3. All statements are incorrect
4. Only Statement III and Statement IV are correct
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Identify the incorrect statement regarding body organization in fungi:
| 1. | With the exception of yeast, fungi are filamentous. |
| 2. | Their bodies consist of long, slender hyphae that may be coenocytic or septate. |
| 3. | The network of hyphae is known as the mycelium. |
| 4. | The cell walls of fungi lack chitin and polysachharides. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following is not used in asexual reproduction in fungi?
| 1. | Conidia | 2. | Sporangiospores |
| 3. | Zoospores | 4. | Ascospores |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Mucor, Rhizopus [the bread mould] and Albugo [the parasitic fungi on mustard] belong to:
| 1. | Phycomycetes | 2. | Ascomycetes |
| 3. | Basidiomycetes | 4. | Deuteromycetes |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following is not true regarding members of Dueteromycetes?
| 1. | Mycelium is septate and branched. |
| 2. | Many are decomposers and help in mineral cycling. |
| 3. | They reproduce only by asexual spores called as conidia. |
| 4. | They include Agaricus, Claviceps and Colletotrichum. |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
| I: | Bladderwort and Venus flytrap are insectivorous. |
| II: | Cuscuta is parasitic. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which of the following will not be true for members of Kingdom Animalia?
| 1. | They all are multicellular |
| 2. | Mode of nutrition is heterotrophic – holozoic |
| 3. | Most are capable of locomotion |
| 4. | They do not follow a definite growth plan |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The figure shows potato affected by certain disease. The affected plants are stunted, tubers may be small, elongated, cylindrical, spindle or dumb-bell-shaped, with prominent eyes evenly distributed over the tuber, and cracking. What will be true for the given figure?
| I: | The disease is Potato Spindle Tuber Disease. |
| II: | It is caused by a pathogen that is high molecular weight double stranded RNA. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2024 GoodEd Technologies Pvt. Ltd.