General Science

In general science, thigmotropism refers to:

A surface receptive to pollen
B growth response to touch
C fusion of male and female gametes
D actively dividing plant tissue responsible for growth

In general science, biodiversity refers to:

A female reproductive structure
B organelle where photosynthesis occurs
C variety of life at genetic, species and ecosystem levels
D major organ for photosynthesis and gas exchange

What is the best description of stomata?

A cohesion-tension contribution to upward xylem water movement
B pollen transfer between genetically different plants of same species
C microscopic pores regulating leaf gas exchange and transpiration
D female reproductive structure

In general science, petal refers to:

A floral part often attracting pollinators
B angiosperm process involving syngamy and triple fusion
C meristem at root/shoot tips causing primary growth
D structure connecting stigma to ovary

What is the best description of self-pollination?

A interconnected food chains
B plant hormone associated with stomatal closure and stress responses
C movement of organic solutes through phloem
D pollination involving the same plant in the relevant case

Which statement correctly identifies meristematic tissue?

A growth response to touch
B generally dead lignified tissue providing strength
C plant hormone promoting cell division
D actively dividing plant tissue responsible for growth

Which of the following is most closely associated with pollination?

A stalk supporting the anther
B pollen transfer between genetically different plants of same species
C plant organ supporting aerial parts and conducting materials
D transfer of pollen from anther to stigma

Which of the following is most closely associated with nitrogen fixation?

A conversion of atmospheric nitrogen into biologically usable forms
B meristem contributing to secondary growth in girth
C structures housing symbiotic nitrogen-fixing bacteria
D growth response to light direction

Which of the following is most closely associated with collenchyma?

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

Which statement correctly identifies root hair?

A male reproductive part of a flower
B structure developing into a seed after fertilisation
C vascular tissue transporting sugars and other organic assimilates
D epidermal extension increasing root absorption surface

In general science, gravitropism refers to:

A growth response to gravity
B plant organ mainly anchoring and absorbing water/minerals
C transfer of pollen from anther to stigma
D part of stamen producing pollen

In general science, meristematic tissue refers to:

A actively dividing plant tissue responsible for growth
B movement of seeds away from parent plant
C growth response to light direction
D plant flowering when day length is below a critical value

What is the best description of short-day plant?

A pollination involving the same plant in the relevant case
B stalk supporting the anther
C loss of water vapour from aerial plant parts
D plant flowering when day length is below a critical value

Which statement correctly identifies long-day plant?

A plant flowering when day length exceeds a critical value
B actively dividing plant tissue responsible for growth
C epidermal extension increasing root absorption surface
D gaseous plant hormone involved in fruit ripening

In general science, photoperiodism refers to:

A plant response to relative duration of light and dark
B conversion of atmospheric nitrogen into biologically usable forms
C plant hormone associated with stomatal closure and stress responses
D meristem at root/shoot tips causing primary growth

What is the best description of photoperiodism?

A reproductive structure of flowering plants
B plant response to relative duration of light and dark
C fusion of male and female gametes
D surface receptive to pollen

Which of the following is most closely associated with xylem?

A process by which green plants use light to synthesise organic matter from CO2 and water
B vascular tissue conducting water and minerals mainly upward
C plant organ supporting aerial parts and conducting materials
D linear feeding sequence

Which statement correctly identifies cross-pollination?

A microscopic pores regulating leaf gas exchange and transpiration
B reproductive structure of flowering plants
C movement of seeds away from parent plant
D pollen transfer between genetically different plants of same species

Which statement correctly identifies seed dispersal?

A microscopic pores regulating leaf gas exchange and transpiration
B movement of seeds away from parent plant
C variety of life at genetic, species and ecosystem levels
D reproductive structure of flowering plants

In general science, root refers to:

A capacity of a plant cell to regenerate into a whole plant under suitable conditions
B plant organ mainly anchoring and absorbing water/minerals
C organism breaking down dead organic matter
D vascular tissue transporting sugars and other organic assimilates

Which statement correctly identifies Rhizobium?

A nitrogen-fixing bacteria associated with legume root nodules
B female reproductive structure
C cohesion-tension contribution to upward xylem water movement
D pollen transfer between genetically different plants of same species

What is the best description of phototropism?

A interconnected food chains
B gaseous plant hormone involved in fruit ripening
C growth response to light direction
D movement of organic solutes through phloem

Which statement correctly identifies parenchyma?

A organism producing organic matter, usually using light or chemical energy
B living tissue often involved in storage/photosynthesis
C vascular tissue conducting water and minerals mainly upward
D in-vitro cultivation of plant cells/tissues

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

A resumption of embryo growth into a seedling
B living tissue often involved in storage/photosynthesis
C epidermal extension increasing root absorption surface
D plant hormone promoting stem elongation and influencing germination

Which statement correctly identifies thigmotropism?

A male reproductive part of a flower
B structure developing into a seed after fertilisation
C growth response to touch
D vascular tissue transporting sugars and other organic assimilates