exam review 2A Flashcards
(37 cards)
which of the following occurs in phototropism in plants?
A. light is detected by photoropins
B. auxin moves to the illuminated side of the plant C. cells elongate on the illuminated side of the plant D. the plant bends away from light
E. all of the above
light is detected by photropins
roots grow downward, shoot grows upward
gravitropism
movement in response to touch
thigmotropism
pattern of growth and development is influenced by environment
phenotypic plasticity
promotes seed germination
gibberellins
inhibits seed germination
abscisic acid
promotes ripening o fruit
ethylene
fungi
have cellulose in their cell walls
store glucose as starch
have a single flagellum on cells with a flagellum
all of the above
have a single flagellum on cells with a flagellum
in fungi, hyphae are thick filaments that are resistant to drying out
true or false
false, thin and vaulernable to drying out
in fungi, the feeding structures are typically above ground and the reproductive structures are typically below ground
true or false
false
which of the following is true about ectomycorrhizal fungi
the hyphae penetrate the cell walls of the plant roots
the plant receives sugars from the fungus
the fungus receives N and P from the plant
they are common in temperate fores
they are common in temperate forests
true or false
endophytes are fungi that live in the above ground parts of plants (leaves and stems)
true
hyphae have two distinct types of haploid nuclei
heterokaryote
joining of hyphae to form heterokaryote
plasmogamy
joining of haploid nuclei within heterokaryote to form zygote
karyogamy
true or false
in fungi, a zygote undergoes meiosis to produce haploid spores
true
true or false
molds reproduce asexually by producing spores via mitosis
true
Form arbuscular mycorrhizal associations with plant roots.
glomeromycota
Includes cup fungi; bakers and brewers yeast; some form lichens.
ascomycota
Live in aquatic environments; some have sperm, eggs, and spores with flagella; some are parasites in amphibians.
alternation of generations
chytrids
During sexual reproduction, form ball-like structures that withstand harsh conditions.
zygomycota
Includes most ectomycorrhizal fungi; some digest wood; some are bioluminescent; includes mushrooms and puff balls.
basidiomycota
some animals
are autotrophic
have cell wells
are unicellular
none of the above
none of the above
what embryonic tissue is present in triple lasts but not diploblasts
mesoderm