vocab
What is the definition of seed?
Has the embryo food supply and coating
what is the definition of pollen grain
Male reproductive structure that produces a plant’s sperm cells
Haploid stage in seedless plants
Larger and more prominent than the diploid structure
What is the definition of flower?
Where reproduction begins
What is cellular respiration
Occurs in the mitochondria and cytoplasm; gives organisms energy.
Pollination
Occurs in seed plants where male pollen grains make contact with female reproductive structures
What is the definition of fruit?
After fertilization ovary, develops into this
Tropism
Plant grows toward or away from a stimulus
Fertilization
Male sperm cells unite with female eggs to produce a zygote
What is the definition of stimulus?
Change in environment that causes organisms to respond
What is thigmotropism
Response of a plant to touch
Pine tree cones and apple tree flowers
Both are structures where plant reproduction takes place
Cones hold the male sperm cells and female eggs cells of conifers
Flowers hold sperm and egg cells
Pollination and fertilization occur in both
What is the definition of photoperiodism?
Plants response to darkness
Haploid stage in seed-producing plants
Very small and enclosed with a diploid structure