parts of a plant
what portion of the flower creates pollen
anther
List the three types of tropism
thigmotropism
phototropism
gravitropism
What type of plant is a moss
nonvascular
What are the two stages of reproduction, give brief definition
sporophyte: when spores are created
Gametophyte: when the egg gets fertilized
What type of hormone causes a plant to grow tall and long
auxin
List the three parts of the female reproduction system in a flower
- stigma
-style
- ovary
What is positive and negative tropism
positive (towards the direction of a stimulus)
negative (away from the stimulus)
What type of plant is a fern
seedless vascular
Why do ferns and moss require water for the egg to get fertilized?
because the pollen does not travel through the air like it does for gymnosperms and angiosperms
What type of hormone causes a plant to grow wide
cytokines
what is the difference between the male and female cones
male cones are light and fluffy contain pollen
female cones are hard and spiky, create seeds
a plant is outside and growing up, what two types of tropism are being done by the stem
positive phototropism
negative gravitropism
What is the difference between angiosperms and gymnosperms
angiosperms make fruit and flowers
gymnosperms make cones
What is the structure that produces spores on a fern called
sori
What plant hormone inhibits (stops) other plant hormones
absenic acid
what is the green petals that protect the plant called
sepal
What kind of tropism is done by a venus fly trap
positive thigmotropism
What is a similarity between angiosperms and gymnosperms
they both are seed forming vascular plants
What is the dominant phase for ferns
sporophyte
What type of plant grows independent of the season
day neutral plants
once a flowers egg is fertilized, what is created
fruit
Why does a plant wilt after not receiving water for a few days
the cells loose water and the plant decreases in turgor pressure
What 3 things do all plants have in common
cell walls made of cellulose
waxy outer cuticle
tissues
in a gymnosperm is the tree itself a gametophyte or a sporophyte
sporophyte
define critical night length
the theory that the length of darkness a plant requires before a plant blooms
- this determines if it is a short day or long day plant