bio 112 test 2 quizzes 4-7
steps of stomatal closing
1. ABA moves to guard cells 2. K+ moves out of guard cells 3. water moves out of guard cells 4. stoma closes
all plants are multicellular
TRUE
both gymnospores and angiosperms produce seeds
TRUE
dermal tissue is found on the exterior of a plant
TRUE
extracellular movement of water within plant roots occurs between cell spaces
TRUE
gas exchange through stomata utilizes the process of diffusion
TRUE
in conifers, the dominant life stage is the sporophyte stage
TRUE
intracellular movement of water within plant roots occurs within cells
TRUE
phloem is comprised of living cells
TRUE
transpiration is the movement of water out of a plant through stomata
TRUE
if you were walking through the woods, which of the following would you be LEAST likely to see?
a fern gametophyte
role of petal
attracts pollinators
in alternation of generations, the sporophyte is ________, the gameophyte is ________
diploid, haploid
role of ovule
houses egg/embryo sac
companion cell role
load sugars into sieve tube
role of anther
makes pollen
in the alternation of generations in plants, sporophytes make spores using the process of _________, gametophytes make gametes using the process of _________
meiosis, mitosis
which process occurs at meristems
mitosis
pressure flow
moves sugars through plant body
transpiration cohesion tension
moves water through plant body
cation exchange
plant trades H+ ions for positive ions in soil
role of stigma
pollen lands here
role of style
pollen tube grows down this structure
what is the role of dermal tissues
protection
role of sepal
protects petals until flower blooms
role of fruit
protects seeds and aids in seed dispersal
sclerynchyma role
rigid support
sugars move through plants - put the descriptions in order as sugar moves from source to sink
1. companion cell loads sugars into sieve tube 2. water moves from xylem into sieve tubes 3. pressure is generated 4. cells in sugar sink take up sugar 5. water moves from sieve tubes to xylem
flowers are the structures that allow flowering plants to undergo asexual reproduction
FALSE
tracheids and vessel elements are found in phloem
FALSE - found in xylem
humus is an inorganic component of soil
FALSE - it is organic
a plant's zygote undergoes meiosis in order to grow
FALSE - mitosis
the aglal holdfast can be used to absorb nutrients from the substrate in which it is growing
FALSE - only used for anchoring
the process of fertilization in flowering plants requires three sperm cells to form a single seed
FALSE - two
which of the following is an example of a sugar sink
carrot in the ground in the summer
an explorer finds a new species of plant that has vascular tissue. it has no flowers or fruits, but it produces seeds. based on the four major groups of plants we have discussed, this description describes a
conifer
which of the following characteristics IS NOT an adaptation that plants have to living on land
flagellated sperm
collenchyma role
flexible support
parenchyma role
storage and space filler
mosses and ferns are limited to moist habitats because
they have flagellated sperm
sieve tubes role
transfer sugars through plant body
vessel elements role
transfer water and nutrients through plant body
apical meristems produce _________ growth, whereas lateral meristems produce _________ growth
up/down, sideways
growth rings present in wood are primarily made of
xylem