General Science

Which statement correctly identifies food web?

A process by which green plants use light to synthesise organic matter from CO2 and water
B interconnected food chains
C organism breaking down dead organic matter
D growth response to touch

Which of the following is most closely associated with food chain?

A linear feeding sequence
B microscopic pores regulating leaf gas exchange and transpiration
C reproductive structure of flowering plants
D surface receptive to pollen

In general science, seed refers to:

A pollination involving the same plant in the relevant case
B cohesion-tension contribution to upward xylem water movement
C mature ovule containing an embryo
D generally dead lignified tissue providing strength

What is the best description of transpiration pull?

A living tissue often involved in storage/photosynthesis
B cohesion-tension contribution to upward xylem water movement
C mature ovary, often with accessory tissues
D structure developing into a seed after fertilisation

Which of the following is most closely associated with chlorophyll?

A movement of organic solutes through phloem
B plant hormone associated with stomatal closure and stress responses
C green pigment absorbing light for photosynthesis
D conversion of atmospheric nitrogen into biologically usable forms

Which of the following is most closely associated with decomposer?

A in-vitro cultivation of plant cells/tissues
B floral part often attracting pollinators
C organism breaking down dead organic matter
D vascular tissue conducting water and minerals mainly upward

Which statement correctly identifies permanent tissue?

A cellular oxidation releasing usable energy in plants
B process by which green plants use light to synthesise organic matter from CO2 and water
C linear feeding sequence
D differentiated tissue generally no longer actively dividing

What is the best description of chloroplast?

A part protecting the developing flower bud
B angiosperm process involving syngamy and triple fusion
C organelle where photosynthesis occurs
D structure connecting stigma to ovary

Which statement correctly identifies root?

A plant organ mainly anchoring and absorbing water/minerals
B directional plant growth response to an external stimulus
C variety of life at genetic, species and ecosystem levels
D plant response to relative duration of light and dark

What is the best description of auxin?

A stalk supporting the anther
B loss of water vapour from aerial plant parts
C pollination involving the same plant in the relevant case
D plant hormone associated with cell elongation and tropisms

What is the best description of gravitropism?

A growth response to touch
B organism breaking down dead organic matter
C capacity of a plant cell to regenerate into a whole plant under suitable conditions
D growth response to gravity

Which statement correctly identifies ethylene?

A plant flowering when day length exceeds a critical value
B gaseous plant hormone involved in fruit ripening
C growth response to gravity
D structures housing symbiotic nitrogen-fixing bacteria

Which statement correctly identifies filament?

A living flexible support tissue
B loss of water vapour from aerial plant parts
C pollination involving the same plant in the relevant case
D stalk supporting the anther

Which of the following is most closely associated with permanent tissue?

A stalk supporting the anther
B plant organ supporting aerial parts and conducting materials
C pollination involving the same plant in the relevant case
D differentiated tissue generally no longer actively dividing

What is the best description of totipotency?

A capacity of a plant cell to regenerate into a whole plant under suitable conditions
B part of stamen producing pollen
C process by which green plants use light to synthesise organic matter from CO2 and water
D plant organ mainly anchoring and absorbing water/minerals

Which statement correctly identifies transpiration pull?

A conversion of atmospheric nitrogen into biologically usable forms
B cohesion-tension contribution to upward xylem water movement
C plant hormone associated with stomatal closure and stress responses
D meristem at root/shoot tips causing primary growth

Which of the following is most closely associated with root?

A microscopic pores regulating leaf gas exchange and transpiration
B part protecting the developing flower bud
C plant organ mainly anchoring and absorbing water/minerals
D structure connecting stigma to ovary

Which statement correctly identifies decomposer?

A plant flowering when day length is below a critical value
B structures housing symbiotic nitrogen-fixing bacteria
C growth response to light direction
D organism breaking down dead organic matter

Which statement correctly identifies leaf?

A major organ for photosynthesis and gas exchange
B vascular tissue conducting water and minerals mainly upward
C organism producing organic matter, usually using light or chemical energy
D in-vitro cultivation of plant cells/tissues

Which of the following is most closely associated with cytokinin?

A plant hormone promoting cell division
B linear feeding sequence
C process by which green plants use light to synthesise organic matter from CO2 and water
D plant organ mainly anchoring and absorbing water/minerals

In general science, stomata refers to:

A epidermal extension increasing root absorption surface
B cellular oxidation releasing usable energy in plants
C microscopic pores regulating leaf gas exchange and transpiration
D gaseous plant hormone involved in fruit ripening

Which of the following is most closely associated with germination?

A growth response to touch
B plant hormone promoting cell division
C organism breaking down dead organic matter
D resumption of embryo growth into a seedling

In general science, translocation refers to:

A structures housing symbiotic nitrogen-fixing bacteria
B differentiated tissue generally no longer actively dividing
C mature ovary, often with accessory tissues
D movement of organic solutes through phloem

In general science, gibberellin refers to:

A plant hormone associated with cell elongation and tropisms
B organism producing organic matter, usually using light or chemical energy
C growth response to water
D plant hormone promoting stem elongation and influencing germination

Which statement correctly identifies flower?

A movement of seeds away from parent plant
B reproductive structure of flowering plants
C microscopic pores regulating leaf gas exchange and transpiration
D part protecting the developing flower bud