General Science

What is the best description of flower?

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

Which of the following is most closely associated with root nodules?

A plant hormone promoting cell division
B structures housing symbiotic nitrogen-fixing bacteria
C organism breaking down dead organic matter
D growth response to touch

Which statement correctly identifies seed?

A structure connecting stigma to ovary
B part protecting the developing flower bud
C mature ovule containing an embryo
D angiosperm process involving syngamy and triple fusion

Which statement correctly identifies chloroplast?

A pollination involving the same plant in the relevant case
B living flexible support tissue
C loss of water vapour from aerial plant parts
D organelle where photosynthesis occurs

In general science, chlorophyll refers to:

A green pigment absorbing light for photosynthesis
B living tissue often involved in storage/photosynthesis
C resumption of embryo growth into a seedling
D plant hormone associated with cell elongation and tropisms

What is the best description of root nodules?

A reproductive structure of flowering plants
B structures housing symbiotic nitrogen-fixing bacteria
C fusion of male and female gametes
D surface receptive to pollen

In general science, stem refers to:

A cells regulating stomatal opening
B floral part often attracting pollinators
C asexual reproduction from vegetative plant parts
D plant organ supporting aerial parts and conducting materials

Which statement correctly identifies vegetative propagation?

A green pigment absorbing light for photosynthesis
B plant organ supporting aerial parts and conducting materials
C asexual reproduction from vegetative plant parts
D stalk supporting the anther

What is the best description of xylem?

A meristem contributing to secondary growth in girth
B nitrogen-fixing bacteria associated with legume root nodules
C vascular tissue conducting water and minerals mainly upward
D mature ovule containing an embryo

In general science, short-day plant refers to:

A growth response to touch
B plant hormone promoting cell division
C plant flowering when day length is below a critical value
D generally dead lignified tissue providing strength

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

A in-vitro cultivation of plant cells/tissues
B resumption of embryo growth into a seedling
C plant hormone associated with cell elongation and tropisms
D living tissue often involved in storage/photosynthesis

What is the best description of stem?

A growth response to light direction
B structures housing symbiotic nitrogen-fixing bacteria
C plant organ supporting aerial parts and conducting materials
D plant flowering when day length is below a critical value

Which statement correctly identifies sclerenchyma?

A generally dead lignified tissue providing strength
B plant organ supporting aerial parts and conducting materials
C green pigment absorbing light for photosynthesis
D stalk supporting the anther

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