General Science

What is the best description of tissue culture?

A major organ for photosynthesis and gas exchange
B organelle where photosynthesis occurs
C interconnected food chains
D in-vitro cultivation of plant cells/tissues

In general science, nitrogen fixation refers to:

A loss of water vapour from aerial plant parts
B living flexible support tissue
C conversion of atmospheric nitrogen into biologically usable forms
D pollination involving the same plant in the relevant case

Which of the following is most closely associated with thigmotropism?

A growth response to touch
B plant hormone associated with cell elongation and tropisms
C resumption of embryo growth into a seedling
D living tissue often involved in storage/photosynthesis

What is the best description of phloem?

A epidermal extension increasing root absorption surface
B actively dividing plant tissue responsible for growth
C gaseous plant hormone involved in fruit ripening
D vascular tissue transporting sugars and other organic assimilates

What is the best description of root hair?

A major organ for photosynthesis and gas exchange
B organelle where photosynthesis occurs
C epidermal extension increasing root absorption surface
D variety of life at genetic, species and ecosystem levels

In general science, xylem refers to:

A vascular tissue conducting water and minerals mainly upward
B plant flowering when day length is below a critical value
C growth response to light direction
D movement of seeds away from parent plant

In general science, vegetative propagation refers to:

A asexual reproduction from vegetative plant parts
B mature ovule containing an embryo
C floral part often attracting pollinators
D flower structure containing ovules

What is the best description of vegetative propagation?

A asexual reproduction from vegetative plant parts
B plant flowering when day length is below a critical value
C cells regulating stomatal opening
D movement of seeds away from parent plant

Which of the following is most closely associated with stomata?

A plant flowering when day length exceeds a critical value
B asexual reproduction from vegetative plant parts
C growth response to gravity
D microscopic pores regulating leaf gas exchange and transpiration

Which of the following is most closely associated with gibberellin?

A plant response to relative duration of light and dark
B organelle where photosynthesis occurs
C variety of life at genetic, species and ecosystem levels
D plant hormone promoting stem elongation and influencing germination

Which of the following is most closely associated with transpiration pull?

A variety of life at genetic, species and ecosystem levels
B plant response to relative duration of light and dark
C organelle where photosynthesis occurs
D cohesion-tension contribution to upward xylem water movement

In general science, producer refers to:

A movement of seeds away from parent plant
B plant response to relative duration of light and dark
C organism producing organic matter, usually using light or chemical energy
D directional plant growth response to an external stimulus

In general science, stigma refers to:

A plant hormone promoting stem elongation and influencing germination
B surface receptive to pollen
C organism producing organic matter, usually using light or chemical energy
D growth response to water

What is the best description of tropism?

A directional plant growth response to an external stimulus
B growth response to light direction
C plant flowering when day length is below a critical value
D nitrogen-fixing bacteria associated with legume root nodules

What is the best description of cross-pollination?

A pollen transfer between genetically different plants of same species
B growth response to touch
C organism breaking down dead organic matter
D capacity of a plant cell to regenerate into a whole plant under suitable conditions

What is the best description of carpel/pistil?

A female reproductive structure
B pollen transfer between genetically different plants of same species
C stalk supporting the anther
D cohesion-tension contribution to upward xylem water movement

Which statement correctly identifies auxin?

A mature ovule containing an embryo
B plant hormone associated with cell elongation and tropisms
C meristem contributing to secondary growth in girth
D nitrogen-fixing bacteria associated with legume root nodules

What is the best description of seed dispersal?

A movement of seeds away from parent plant
B capacity of a plant cell to regenerate into a whole plant under suitable conditions
C growth response to water
D organism producing organic matter, usually using light or chemical energy

In general science, hydrotropism refers to:

A growth response to water
B mature ovule containing an embryo
C floral part often attracting pollinators
D flower structure containing ovules

Which statement correctly identifies Internet of Things?

A relatively small rocky/metallic body orbiting the Sun
B collection of information without direct physical contact using sensors
C network of physical devices exchanging data through sensors/software
D large infrared space telescope operated through an international partnership

What is the best description of genome?

A use of biological systems or components to develop products/processes
B complete genetic material of an organism/cell
C icy body that can develop a coma and tail near the Sun
D organism whose genetic material has been altered using genetic engineering

Which statement correctly identifies ballistic missile?

A rechargeable battery using lithium-ion movement between electrodes
B missile whose major trajectory is ballistic after powered flight
C defunct human-made objects/fragments orbiting Earth
D imaging using high-frequency sound waves

Which of the following is most closely associated with smart grid?

A magnetic resonance imaging using magnetic fields and radiofrequency signals
B capture of CO2 emissions for storage/use
C technology converting sunlight directly into electricity
D digitally monitored and controlled electricity network

In general science, UAV refers to:

A object orbiting another body
B unmanned aerial vehicle
C vaccine delivering messenger RNA instructions to produce an antigen
D Geosynchronous Satellite Launch Vehicle

What is the best description of ISRO?

A collection of information without direct physical contact using sensors
B large infrared space telescope operated through an international partnership
C Polar Satellite Launch Vehicle
D India’s space agency