chapter 19: Plants Flashcards
Plants are members of kingdom..?
Plantae
What do plants provide for other species?
habitats and food
Are plants multicellular?
Yes
Are plants heterotrophic or autotrophic?
autotrophic
what domain are plants in?
Eukarya
What protist is the closest relative of plants?
Green algae
What are Charophytes?
a group of modern green algae
They are most similar to the ancestors of plants
what molecular features do plants and green algae have in common?
chloroplasts contain the same pigments, cell walls contain cellulose, and they both use starch as a storage molecule
What are the differences between green algae and plants?
Green algae live in water
Does environment affect body types and reproductive strategies?
yes
Name the groups plants are divided in
Nonvascular plants, seedless vascular plants, gymnosperms, and angiosperms
When did plants arose?
during the Paleozoic era
adaptation to live on land for plants
leaves, vascular tissue, roots
what does the cuticle do?
keeps leaves from drying out
what does the stomata do?
it allows for gas exchanges
vascular tissue
a bundle of tubes that transports water, minerals, and sugar throughout the plant
what do roots do?
absorb water and minerals while anchoring the plant in the soil
do plant gametes and zygotes both grow into adult organisms and reproduce?
yes
do all plants have similar life cycles, if so what does that mean evolution wise?
yes
it means that all plants have a shared common ancestor
the plant life cycle is called…
alternation of generations
during alternation of generations a multicellular [blank] stage alternates with a multicellular [blank] stage
diploid
haploid
a fertilized egg forms a diploid [blank], which develops by [blank] cell division into multicellular [blank] plant called a…
zygote
mitotic
diploid
sporophyte
the sporophyte plant produces [blank] spores by [blank]
haploid
meiosis
spores divide by [blank] into multicellular, [haploid or diploid] [blank]
mitosis
haploid
gametophyte
the [haploid or diploid] gametophyte produces [blank] by [blank]
haploid
gametes
mitosis
the gametes fuse at [blank] forming a [haploid or diploid] [blank] and starting the cycle again
fertilization
diploid
zygote
in simpler plants the gametophyte is [larger or smaller] and [more or less] dependent on the sporophyte.
Is this true in complex plants or is the reverse true?
larger
less
reverse
do seed plants produce pollen?
yes
does pollen contain the male gametophyte or the female?
male
can pollination happen without water?
yes
do animals help the spread of pollen?
yes, often
[blank] carry dormant plant embryos packaged with a food supply and protected from drying out. They can be dispersed long distances and remain dormant until conditions are favorable
seeds
[blank] produce pollen and egg cells.
flowers