The free-living fungus Trichoderma can be used for:
1. killing insects
2. biological control of plant diseases
3. controlling butterfly caterpillars
4. producing antibiotics
Identify the incorrectly matched pair
1. |
Baculoviruses |
Species specific, broad spectrum insecticides |
2. |
Trichoderma |
Free living fungi common in root ecosystems |
3. |
Ladybird |
Biocontrol of aphids |
4. |
Organic farming |
Pests kept at manageable levels rather than completely eradicated |
Baculoviruses are:
1. Species specific, narrow spectrum insecticides
2. Species specific, broad spectrum insecticides
3. Non specific, narrow spectrum inseticides
4. Non specific, broad spectrum insecticides
A common biocontrol agent for the control of plant disease is
(1) Baculovirus
(2) Bacillus thuringiensis
(3) Glomus
(d) Trichoderma
Which of the following is not used as a biopesticide?
(1) Bacillus thuringiensis
(2) Trichoderma harzianum
(3) Nuclear Polyhedrosis Virus (NPV)
(4) Xanthomonas campestris
Column-I | Column-II | ||
I. | Methanogens | A. | Microbial biocontrol agent |
II. | Organic wastes | B. | Penicillin |
III. | Bacillus thuringiensis |
C. | Biochemical oxygen demand |
IV. | Penicillium notatum | D. | Methanobacterium |
Which of the combinations is correct?
I | II | III | IV | |
(1) | B | A | D | C |
(2) | C | D | A | B |
(3) | D | C | A | B |
(4) | D | B | A | C |
|
Column-I |
|
Column-II |
I. |
Saccharomyces |
A. |
Bacteria |
II. |
Trichoderma |
B. |
Cyanobacteria |
III. |
Lactobacillus |
C. |
Fungi |
IV. |
Nostoc |
D. |
Yeast |
Which of the combinations is correct?
|
I |
II |
III |
IV |
(1) |
D |
C |
A |
B |
(2) |
C |
D |
A |
B |
(3) |
A |
B |
C |
D |
(4) |
D |
B |
A |
C |
|
Column-I |
|
Column-II |
I. |
Statins |
A. |
Yeast |
II. |
Ethanol |
B. |
Blood-cholesterol lowering agent |
III. |
Dung |
C. |
Insect-resistant plant |
IV. |
Bt-cotton |
D. |
Biogas |
Which of the combinations is correct?
|
I |
II |
III |
IV |
(1) |
B |
A |
D |
C |
(2) |
C |
D |
A |
B |
(3) |
A |
B |
C |
D |
(4) |
D |
B |
A |
C |
Which of the following statements is correct?
A. Single cell protein is rich in high quality proteins but poor in fat.
B. BOD is the amount of oxygen that would be consumed if all the inorganic matter in one litre of water were oxidized by bacteria.
C. Trichoderma sp are free living fungi that are effective biocontrol agents of several pathogens.
D. Baculoviruses are pathogens that attack insects and other arthropods.
E. Bacillus thuringiensis is first used biopesticide.
F. Lactase enzyme is used in alcoholic fermentation.
G. Mycorrhiza is a symbiotic association between fungi e.g. Glomus and vascular plant.
(1) B, C, F, G
(2) A, D, F
(3) A, C, D, E, G
(4) B, F
Consider the following statements (A-D) about organic farming:
(A) Utilizes genetically modified crops like Bt cotton
(B) Uses only naturally produced inputs like compost
(C) Does not use pesticides and urea
(D) Produces vegetables rich in vitamins and minerals
Which of the above statements are correct?
(1) B, C and D
(2) C and D only
(3) B and C only
(4) A and B only