Fertilization
What part of the flower produces pollen?
Stamen
Which plants reproduce with spores? Which ones by fragmentation?
Mosses, ferns
the part of the plant that contains the reproductive organs.
Flower
Plants produce _____________ as a waste product.
oxygen
What are the four stimuli that plants respond to in their movement?
gravity, light, water, touch
What part of the plant does the pollen enter to form a pollen tube?
Pistil
_______________ produce seeds that are not in a fruit.
Gymnosperms
The brightly colored leaves of the flower are called _____________
Petals (Corolla)
Plants produce ____________, the simple sugar molecules that are their nutrients.
carbohydrates
____________ are plant responses that consist of growth in a particular direction and are irreversible.
tropisms
The female gamete develops inside the ____________
Ovary
The nutritious substance that surrounds an embryo while it grows in a seed.
Endosperm
The end of the stamen that holds the pollen is the ___________.
anther
CO2 enters the plant through the ___________ on the underside of the leaves.
stomata
___________ are fast movements that are reversible.
nastic movements
Fruit helps to ___________ the seeds.
Disperse
The protective layer that surrounds the seed.
Seed coat
The end of the pistil where the pollen enters is the ___________.
Stigma
The mixture of water and nutrients absorbed through the roots is the ______________.
xylem sap
A sunflower opening in the morning and following the sun across the sky is a ___________ movement.
photonastic
_______________ is when the seed absorbs water and begins to break open.
Germination
The small leaves that form on the embryo.
Cotyledons
The stems that grow parallel to the soil, not vertically.
The mixture of carbohydrates and water forms _______________.
phloem sap
The leaves of a Venus flytrap closing on an insect is a ________________ movement.
thigmonastic