General Science

What is the best description of chlorophyll?

A male reproductive part of a flower
B structure developing into a seed after fertilisation
C green pigment absorbing light for photosynthesis
D vascular tissue transporting sugars and other organic assimilates

Which of the following is most closely associated with transpiration?

A loss of water vapour from aerial plant parts
B growth response to gravity
C asexual reproduction from vegetative plant parts
D plant flowering when day length exceeds a critical value

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

A actively dividing plant tissue responsible for growth
B linear feeding sequence
C plant organ mainly anchoring and absorbing water/minerals
D process by which green plants use light to synthesise organic matter from CO2 and water

Which of the following is most closely associated with long-day plant?

A variety of life at genetic, species and ecosystem levels
B plant flowering when day length exceeds a critical value
C organelle where photosynthesis occurs
D movement of organic solutes through phloem

Which statement correctly identifies producer?

A plant hormone promoting stem elongation and influencing germination
B growth response to water
C organism producing organic matter, usually using light or chemical energy
D living flexible support tissue

In general science, double fertilisation refers to:

A angiosperm process involving syngamy and triple fusion
B surface receptive to pollen
C fusion of male and female gametes
D meristem at root/shoot tips causing primary growth

What is the best description of hydrotropism?

A growth response to water
B plant flowering when day length exceeds a critical value
C cells regulating stomatal opening
D asexual reproduction from vegetative plant parts

Which of the following is most closely associated with ovary?

A in-vitro cultivation of plant cells/tissues
B flower structure containing ovules
C floral part often attracting pollinators
D vascular tissue conducting water and minerals mainly upward

What is the best description of filament?

A reproductive structure of flowering plants
B structure connecting stigma to ovary
C stalk supporting the anther
D angiosperm process involving syngamy and triple fusion

Which of the following is most closely associated with gravitropism?

A meristem at root/shoot tips causing primary growth
B structure connecting stigma to ovary
C angiosperm process involving syngamy and triple fusion
D growth response to gravity

In general science, filament refers to:

A nitrogen-fixing bacteria associated with legume root nodules
B directional plant growth response to an external stimulus
C meristem contributing to secondary growth in girth
D stalk supporting the anther

Which statement correctly identifies plant respiration?

A part protecting the developing flower bud
B cellular oxidation releasing usable energy in plants
C structure connecting stigma to ovary
D angiosperm process involving syngamy and triple fusion

Which of the following is most closely associated with ethylene?

A in-vitro cultivation of plant cells/tissues
B floral part often attracting pollinators
C gaseous plant hormone involved in fruit ripening
D vascular tissue conducting water and minerals mainly upward

In general science, ethylene refers to:

A green pigment absorbing light for photosynthesis
B interconnected food chains
C gaseous plant hormone involved in fruit ripening
D movement of organic solutes through phloem

Which of the following is most closely associated with ovule?

A reproductive structure of flowering plants
B microscopic pores regulating leaf gas exchange and transpiration
C structure developing into a seed after fertilisation
D surface receptive to pollen

Which statement correctly identifies self-pollination?

A pollination involving the same plant in the relevant case
B in-vitro cultivation of plant cells/tissues
C organism producing organic matter, usually using light or chemical energy
D vascular tissue conducting water and minerals mainly upward

In general science, food web refers to:

A interconnected food chains
B asexual reproduction from vegetative plant parts
C part protecting the developing flower bud
D cells regulating stomatal opening

Which statement correctly identifies gibberellin?

A plant hormone associated with stomatal closure and stress responses
B plant hormone promoting stem elongation and influencing germination
C actively dividing plant tissue responsible for growth
D epidermal extension increasing root absorption surface

Which statement correctly identifies root nodules?

A transfer of pollen from anther to stigma
B structures housing symbiotic nitrogen-fixing bacteria
C resumption of embryo growth into a seedling
D living tissue often involved in storage/photosynthesis

Which of the following is most closely associated with tropism?

A stalk supporting the anther
B pollination involving the same plant in the relevant case
C plant organ supporting aerial parts and conducting materials
D directional plant growth response to an external stimulus

What is the best description of nitrogen fixation?

A conversion of atmospheric nitrogen into biologically usable forms
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 food chain?

A linear feeding sequence
B variety of life at genetic, species and ecosystem levels
C plant hormone associated with stomatal closure and stress responses
D movement of organic solutes through phloem

Which statement correctly identifies abscisic acid?

A variety of life at genetic, species and ecosystem levels
B directional plant growth response to an external stimulus
C plant response to relative duration of light and dark
D plant hormone associated with stomatal closure and stress responses

In general science, fruit refers to:

A plant hormone associated with cell elongation and tropisms
B mature ovary, often with accessory tissues
C living tissue often involved in storage/photosynthesis
D resumption of embryo growth into a seedling

Which statement correctly identifies apical meristem?

A plant hormone associated with cell elongation and tropisms
B plant flowering when day length exceeds a critical value
C meristem at root/shoot tips causing primary growth
D growth response to gravity