bio 112 test 2 quizzes 4-7

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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


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