Q. No.Benefits of mycorrhizae are:
A. Resistance to root-borne pathogens
B. Tolerance to salinity and absorption of phosphorus
C. Tolerance to drought
D. Overall increase in the plant growth and development.
(1) Only A, B
(2) Only B, C
(3) Only C, D
(4) A, B, C, D
In cheese manufacture, the micro-organisms are used for:
(1) The souring of milk only
(2) The ripening only
(3) Development of resistance to spoilage
(4) Both (1) and (2)
Which one(s) is/are correct about Cyclosporin A?
(1) It is produced by the fungus Trichoderma polysporum
(2) It is used as an immuno-suppressive agent during organ transplantation
(3) It is produced by a type of yeast, Monascus purpureus
(4) Both (1) and (2)
Antibiotics are used to treat diseases like:
(1) Plague
(2) Whooping cough, Diphtheria
(3) Leprosy
(4) All are correct
Match the Column-I with Column-II:
|
|
Column-I |
|
Column-II |
|
A. |
The stage in which physical treatment of sewage is done. |
I. |
Anaerobic digestion of activated sludge and production of biogas |
|
B. |
The stage in which biological treatment of sewage is done. |
II. |
Activated sludge |
|
C. |
The names of sediment and supernatant in primary treatment. |
III. |
Aeration tanks |
|
D. |
_______ is carried to aeration tanks from primary settling. |
IV. |
Primary effluent |
|
E. |
Site of flocs growth. |
V. |
Primary sludge, effluent |
|
F. |
Name of the sediment of secondary settling. |
VI. |
Secondary treatment |
|
G. |
The function of sludge digester. |
VII. |
Primary treatment |
(1) I - G, II - F, III - E, IV - D, V - C, VI - B, VII - A
(2) I - A, II - C, III - E, IV - G, V - B, VI - D, VII - F
(3) I - A, II - B, III - C, IV - D, V - E, VI - F, VII - G
(4) I - G, II - F, III - A, IV - B, V - C, VI - D, VII - E
Enzyme which has the fibrinolytic effect is:
(1) Protease
(2) Amylase
(3) Lipase
(4) Streptokinase
The advantage the fungi derive from mycorrhizal association with plants:
(1) Shelter + Nutrients
(2) Water from soil
(3) Minerals from soil
(4) Tolerance to salinity
Which of the following statements about mycorrhizae is false?
| I. | In ectomycorrhizae, association between the fungus and plant is less intimate than in endomycorrhizae |
| II. | The mycorrhizal association of fungus and the plant may have had importance in the evolution of land plant |
| III. | The mycorrhizal association is a mutualistic symbiosis |
| IV. | Fungal partner is associated with the only roots of the higher plants (like angiosperms) |
| V. | Only advanced modern plants such as angiosperms possess mycorrhizae |
1. Only V
2. Only IV
3. Only I and III
4. Only II and V
Which of the following enzymes is not used in making detergent?
(1) Peptidase
(2) Cellulase
(3) Amylase
(4) Lipase
Organic farming includes:
(1) Use of fertilizers and pesticides of biological origin
(2) IPM (integrated Pest Management)
(3) Locally developed pest resistant varieties
(4) All are correct
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