Zoom Meeting Flashcards
Plants use to live in
Water
Mosses on (2)
land, but wet all time
Flowering plants
are the biggest group
Plants all can:
photosynthesis, cell wall, alternation of generations
Photosynthesis:
make sugar using energy from the sun
Alternation of generation
weird life cycle,
Sporophyte:
2nA
All cells in our body have two sets of chromosomes = ?
2n
Meiosis, how many sets of chromosomes
1 set of chromosomes
how many sets of chromosomes does gametophyte have?
1n
what is haploid?
n
what is diploid?
2n
What are part of bryophtes?
mosses, liverworts, hornworts
How many species of mosses?
10000
Mosses don’t have..
roots
Plants make gametes and …?
spores
1N=
spores, gametophyte
2n=
embryo, sporophyte
Pterophytes, what plants do they include
ferns, lycophytes
haploid gametophhyte
..
Ferns
live on lands, vascular system
vascular system
xylem, phloem
zxylem
transports water and minerals
Phloem:
transports sugars
Spores only have
half the chromosomes
On gametophytes
have
Embryo is
2n turn into sporophyte
Ferns start off at
curled leaves that are fiddleheads
Fern gemtophyte =
1n
Fern Sporphyte =
2n
sori
the pattern of the spore, every fern has different sports
Gymnosperms
pinecorns; actual seeds, pollen dispersed; evergreen needles, cones
Gymnosperms are first
seeds, pollen, cones, evergreen
Male cones
make pollen
Female cones
fertilized make seeds
pollen is dispesed by the
wind
male pine cones
Angiosperms
flowers, fruits
seeds dispersed by animals/insects in
fruit
function of flower:
pollen disersed by insects
Function of fruits
seeds dispersed by animals/insects
Male parts - stamen
anther, filament
pollen is made on the
anthers
Female called of flower
carpal
carpal includes
stigma, style, ovary
Ovary swells up and turns into
fruit
problems to solve
dessication, reporduction, transporting sugar and water, support
Dessication
What are two or 3 traits that helped plants to live on land
on the test…
Dessication
Ressitant spores - so they dont try outG
gametangia
row of cells prevents gametes drying out
Cuticle
waxy layer
Bark
seeds have seeds coat
Reproduction:
Transport and Structure
Vascular system
Shoot system
above ground, reproduction and photosynthesis
Root system
anchors plant, storage organs, absoption of water and nutrients
Mycorrhizae
fungi associations
Some fungi live in the …
roots of plants, benefits by adding surface area absorbing water and minerals
Meristem
stem cells that haven’t decided what to be
Plants have stem cellswhere?
eeverywehre
Dermal tissues:
cover the plant
Vascular Tissues
transports material
