Which of the following is not a yeast derived product?

  • Statins

  • Cyclosporin A

  • Ethanol

  • Bread

The nutrition of cattle is taken care by which of the following microbes?

  • Methanogens

  • Halophiles

  • Cynobacteria

  • Thermoacidophiles

The biogas plant: wrong statement is

  • 10-15 feet deep

  • In which bio-wastes are collected and slurry of dung is fed

  • Has a fixed lid

  • Has an outlet

The spent slurry in biogas plant is

  • Used as insecticide

  • Used as fertiliser

  • Removed from outlet to sewage treatment plants

  • Both A and B

The technology of biogas production was developed in India mainly due to the efforts of

  • IARI

  • KVIC

  • Both A and B

  • IAIR

The biogas plants are found in

  • More in urban areas

  • More in rural areas

  • More in Delhi

  • Cannot be estimated

KVIC stands for

  • Khadi and village Institution commission

  • Khadi and vallore institution commission

  • Khadi and Village Industries commission

  • Kanpur and Vallore industries Commission

What is the key belief of organic farmers?

  • Biodiversity furthers health

  • Health furthers biodiversity

  • Health and biodiversity are the consequences of development

  • Both B and C

Which of the following is not an approach of organic farmers?

  • More variety a land has more sustainable it is.

  • To create a system which is insects free

  • To create a system in which insects are kept at manageable levels by a complex system of checks and balances within a dead ecosystem.

  • Both B and C

Biocontrol measures will greatly reduce our dependence

  • On toxic chemicals

  • On pests

  • On insects

  • On Birds

Which of the following is not an important part of biological farming approach?

  • To know all the life forms that inhabit the field

  • Predators and pests are also analysed

  • The life cycles, patterns of feeding and habitats of all the life forms of that field

  • To know the abundance of each of the life forms

Which of the following is the major concern of Organic farmers?

  • Chemical methods lead to death of harmful life forms discriminately

  • Eradication of pest is undesirable as it may lead to death of beneficial predatory and parasitic insects

  • Conventional farming

  • Biocontrol measures will increase the dependence on toxic chemicals.

To get rid of Aphids which of the following is used?

  • Beetle with red and black markings

  • Ladybird

  • Dragonflies

  • Both A and B

To get rid of mosquitoes, which of the following is used?

  • Dragonflies

  • Aphids

  • Ladybird

  • Both B and C

The Bacterium Bacillus thuringiensis is used to

  • Control aphids

  • Control aphid larva

  • To control butterfly

  • To control butterfly caterpillars

Bt as a Biocontrol measure holds true for which of the following options?

  • Available in sachets as dried spores

  • Sprayed on vulnerable plants such as Brassicas and Dahlia

  • Kills butterfly caterpillars and other insects

  • All of these

Which of the following is not true about Trichoderma?

  • Common in the root ecosystem

  • Free living fungi

  • Effective Biocontrol Agents of several plant pathogens

  • Bt-cotton is prepared by it

Which of the following option is not true for Baculoviruses?

  • Pathogens that attack insects and the Arthropods

  • Biological control agents

  • Genus- Nucleopolyhedrovirus

  • Species-specific and broad spectrum insecticidal applications

Baculoviruses have no negative effect over

  • Plants, fish

  • Mammals

  • Birds, non-target insects

  • All of these

IPM stands for

  • Integrated Pest Management

  • Integrated Part Messenger

  • International Pollution Management

  • Inter- Pesticide Management Committee

Biofertiliser are the organisms

  • That enrich the nutrient quantity of soil

  • That reduce the nutrient quantity of soil

  • That enrich the nutrient quality of soil

  • That enrich the nutrient specificity of soil

Which of the following is free living nitrogen fixer?

  • Baculoviruses

  • Azotobacter

  • Rhizobium

  • Trichoderma

Mycorrhizae is

  • Symbiotic association of lichen with algae

  • Symbiotic association of fungi with higher plants

  • Symbiotic association of bacteria with plants

  • Symbiotic association of algae with fungi

Mycorrhizal plants have the following benefits except-

  • Phosphorus from soil by means of fungi

  • Resistance to root borne pathogens

  • Tolerance to salinity, drought and extreme low temperature

  • Overall increase in plant growth and development

Which of the following is not cynobacteria?

  • Anabaena

  • Nostoc

  • Oscillatoria

  • Glomus

Which of the following adds organic matter to the soil and increase the fertility of the soil?

  • Cyanobacteria

  • Bacteria

  • Yeast

  • Glomus

Biochemical oxygen demand is

  • Directly proportional to Biodegradable organic matter

  • Inversely proportional to Biodegradable organic matter

  • Depends on direction of flow

  • Directly proportional to dissolved oxygen

Higher the biodegradable organic matter in sewage

  • Higher the dissolved oxygen

  • Higher the BOD

  • Lower the number of Bacteria

  • All of these

Match each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I                                                       Column II
I. Roots of leguminous plants                          1. Frankia
II. Azolla                                                       2. Mycorrhiza
III. Glomus                                                    3. Anabaena
IV. Alnus                                                        4. Rhizobium
Codes:
I II III IV

  • C. 2 1 3 4
  • D. 4 3 2 1

  • A. 1 2 3 4
  • B. 2 1 4 3

Match each item in Column I with one item in Column II and choose your answer from the codes given below:
Column I                                      Column II
I. Aspergillus niger                       1. Clot buster
II. Streptococcus                          2. Citric acid
III. Trichoderma                           3. Cyclosporin A
IV. Monascuspurpureus                 4. Statins
Codes:
I II III IV

  • D. 1 2 4 3

  • C. 2 1 3 4
  • A. 1 2 3 4
  • B. 2 1 4 3
0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Botany Quiz Questions and Answers