Mod 15 study guide Flashcards
Physiology
The study of life process in an organism.
Nastic movement
A plants response to a stimulus such that the direction of the response is preprogramed and not depended on the direction of the stimulus.
Pore spaces
Spaces in the soil that determine how much water and air the soil can hold.
Translocation
The process by which organic substance move through he phloem of a plant.
Gravitropism
A growth response to gravity.
Imperfect flowers
Flowers with either stamens or carpels, but not both.
Name four process for which plant require water.
A plant uses water for photosynthesis, turgor pressure, hydrolysis, and transport.
If a plant loses control of its stomata and they remain closed, will substances still flow through its xylem?
Substances will not flow through the xylem
If a plant loses control of its stomata and they remain closed, will substances still flow through its phloem?
Substances will flow through the phloem.
A biologist has a sample of fluid that came from a plant. If it is composed mostly of organic materials, did it come from the plant’s xylem or phloem?
phloem
If an insectivorous plant cannot catch any insects, will it starve to death?
no, it will not be as healthy but it get its food like other plants so it will still live.
A gardener has two genetically identical plants. If one is the offspring of the other, did the parent propagate sexually or vegetatively?
vegetatively
Anther
Forms and releases pollen grains
Ovule
Hold the embryo sac
Stigma
Catches the pollen grains
Sepal
Protects the sexual organs as they form.
What function do cotyledons perform before germination?
They feed the embryo .
What is the purpose of a fruit?
There are many possible answers. Include at least three:
wind, bees, beetles, birds, moths, or butterflies
Name at least three ways in which pollen is transferred from the stamens of one flower to the carpels of another.
Wind, bees, and beetles.
Which has more cells prior to fertilization, a pollen grain or an embryo sac?
An embryo sac has more cells.
When an embryo sac is fertilized, which cell is not diploid: the zygote or the endosperm ?
The endosperm.
