NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Botany MCQs (Practice_Test 72 of 104)
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- Consider the following steps:
- Isolation of tissue from the plant
- Digestion of cell walls with cellular enzyme
- Preparation of culture medium
- Separation of the naked protoplasts culturing them in the medium
- The correct sequence of the steps to be followed to culture protoplasts is
- 1,2, 3,4
- 1,3, 2,4
- 4,1, 2,3
- 4,2, 1,3
- Which of the following chemicals are added in the synthetic media for culturing plant tissues?
- Auxins
- Cycloheximide
- Cytokinins
- Casein hydrolysate
- Select the correct answer using the codes given below:
- Codes:
- 1,2 and 3
- 2,3 and 4
- 1,3 and 4
- 1,2, and 4
- Codes:
- Entropy
- Increases in a community undergoing primary succession
- Requires no energy for doing work
- Decreases in a community due to the action of decomposers
- Requires an excess of energy to do work
- As one moves up an ecological pyramid, in general
- The biomass increases
- Photosynthesis increases
- Energy levels decrease
- Productivity increases
- Which one of the following pairs is correctly matched?
- Match Item 1: Somatic
- Match Item 2: Bud culture embryogenesis
- Match Item 1: Clonalon propagat
- Match Item 2: Organ culture
- Match Item 1: Tissue culture
- Match Item 2: Bipola embryos
- Match Item 1: Protoplast fusion
- Match Item 2: Somatic hybrid
- Consider the following micro algae:
- Spirulina
- Dunaleilla
- Spirogyra
- Botryococcus
- The micro algae of commercial interest would include
- 1,3 and 4
- 1,2 and 4
- 1,2 and 3
- 3 and 4
- A community of organisms interacting with a biotic environmental factors constitutes
- A niche
- A biogeochemical cycle
- An ecosystem
- A food chain
- Mushroom is referred to as a vegetable meat because it
- Contains proteins
- Contains vitamins and carbohydrates
- Contains folic acid and amino acids
- Is rich in proteins and minerals
- Two good examples of obligate plantanimal Mutualism would include
- Mycorrhiza and fairy rings
- Lichens and corraloid roots of Cycas
- AzolIa-Anabaena symbiosis and sunflower-butterflies
- Acacia-ants and Yucca-yucca moth
- Which of the following would be helpful in forming algal blooms by the members of cyan bacteria?
- Formation of zoospores
- Ability to move to the desire position in the water column
- Development of gas vacuoles
- Formation of biconcave separation discs
- Select the correct answer using the codes given below:
- Codes:
- 1,2 and 3
- 1 and 4
- 2 and 3
- 3 and 4
- Codes:
- Which one of the following adaptations is found desert plants?
- Absence of root hairs
- Presence of spongy stem
- Presence of strongly cutinized epidermal cells
- Presence of pneumatophores
- In the food and energy pyramid, the sequence-from base upwards is
- Aquatic insects-fishes-flowering plants-trees
- Primitive animals-higher animals-man who plants and animals-carnivorous animals
- Plants-animals that eat plants-animals that eat plants and animals-carnivorous animals
- Aquatic plants-terrestrial plantscarnivorous animals-large trees-man
- The protective ozone shield is to be found in the
- Hydrosphere
- Ionosphere
- Stratosphere
- Troposphere
- The spread of Eichhornia can be checked by
- Spraying 2,4 − D
- Allowing cattle to feed on them
- Introducing insects
- Clipping off the vegetative buds
- Agar-agar is extracted mostly from
- Agaricus spp
- Argemone spp
- Rhodophyceae spp
- Phaeophyceae spp