Voicing Vocab
Plants that do not bloom until the nights are longer are called what?
Short-day plants
When a plant reacts to light it is called what?
Phototropism
Chemicals made by some plant tissues that affect how other plant structures grow, are called what?
Hormones
Nonvascular plants need what for fertilization?
water
The colorful part of a flower that is used to attract pollinators is called what?
Petals
Plants that do not need a certain amount of daylight to bloom are called what?
day-neutral plants
When a plant reacts to gravity it is called what?
Gravitropism
The hormone that causes shoots and stems to grow by causeing their cells to enlarge as well as slow down cell division is called what?
Auxin
Gymnosperms and angiosperms use what to fertilize other plants?
Pollen
The female part of the flower that contains the stigma and the style, is called what?
Carpel
The name of the length of darkness a plant needs to bloom is called what?
critical night length
When plants react to things that they touch it is called what?
Thigmotropism
The hormone that causes the plant's cells to divide, is called what?
Cytokinin
The stalk and capsule that contain the spores in nonvascular plants is called what?
sporophytes
The male part of a flower that contains the anthers and the filaments is called what?
Stamen
When a seed begins to sprout and grow into a plant it is called what?
Germination
A plant is planted in an upside-down hanging pot, when it grows it bends around the pot and toward the sky. This is an example of what Tropism
Negative gravitropism
The hormone that prevents seeds from sprouting before they are released from the parent plant, is called what?
Abscisic acid
Seedless vascular plant spores grow into what when they are scattered by the wind?
Small heart shaped plants
The leaflike structure that protects the flower while it is developing is called what?
Sepal
The repeating cycle of gametophyte and sporophyte structures is called what?
alternation of generations
Sunflowers always face the sun, this is an example of what kind of tropism?
Positive phototropism
The hormone that causes fruit to ripen, is called what?
Ethylene
During the breeding season for gymnosperms, all the pollen in the air causes what reaction in some humans?
Hayfever / spring allergies
The part of a flower the turns into a fruit after fertilization is called what?
ovaries