Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides...
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Transcript of Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides...
![Page 1: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/1.jpg)
Plant Life Cycles
![Page 2: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/2.jpg)
Meiosis Review• Cell starts diploid
– Ex: Human = 46 chromosomes
• Cell divides twice to create 4 cells
• End result: Haploid cells– Ex: Human = 23
chromosomes
• Cells created: Sperm, egg, pollen
![Page 3: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/3.jpg)
Alternation of generations (In general)• Diploid zygote created• Diploid zygote grows
into a diploid sporophyte
• Haploid spores created by meiosis
• Haploid spores grow into haploid gametophytes– Male gametophyte
creates haploid sperm– Female gametophyte
creates haploid egg
• Sperm and egg fuse to make a diploid zygote
• Cycle restarts
![Page 4: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/4.jpg)
Moss Life Cycle
![Page 5: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/5.jpg)
gametophyte
1)Moss gametophytes grow near the ground (haploid stage)
2) Through water, sperm from the male gametophyte will swim to the female gametophyte to create a diploid zygote
3) Diploid sporophyte will grow from zygote
4) Sporophyte will create and release haploid spores
.....sporophyte
eggegg
egg egg
malemale male malefemalefemalefemalefemale
zygotezyg
ote
zygote
zygote
![Page 6: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/6.jpg)
5) Haploid spores land and grow into new gametophytes
.
groundgametophyte
6) The process repeats
![Page 7: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/7.jpg)
gametophyte
.....sporophyte
eggegg
egg egg
malemale male malefemalefemalefemalefemale
zygotezyg
ote
zygote
zygote
![Page 8: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/8.jpg)
5) Haploid spores land and grow into new gametophytes
.
groundgametophyte
6) The process repeats
![Page 9: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/9.jpg)
Fern Life Cycle
![Page 10: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/10.jpg)
AdultSporophyte (diploid)
.
..
.
1) Sporophyte creates and releases haploid spores
ground
![Page 11: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/11.jpg)
.
.
.
.
ground
2) Haploid spores land in the soil
![Page 12: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/12.jpg)
ground
3) From the haploid spores, gametophyte grows in the soil
Let’s zoom in
![Page 13: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/13.jpg)
4) Sperm swim through water from the male parts (antheridium) to the female parts (archegonia)Let’s zoom back out
eggegg
egg
zygote
zygote
zygote
![Page 14: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/14.jpg)
ground
5) Diploid sporophyte grows from the zygote
sporophyte
![Page 15: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/15.jpg)
6) Fronds uncurls into leaves.
ground
7) Cycle repeats -- Haploid spores created and released
.
.
..
![Page 16: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/16.jpg)
AdultSporophyte (diploid)
.
..
.
1) Sporophyte creates and releases haploid spores
ground
![Page 17: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/17.jpg)
.
.
.
.
ground
2) Haploid spores land in the soil
![Page 18: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/18.jpg)
ground
3) From the haploid spores, gametophyte grows in the soil
Let’s zoom in
![Page 19: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/19.jpg)
4) Sperm swim through water from the male parts (antheridium) to the female parts (archegonia)Let’s zoom back out
eggegg
egg
zygote
zygote
zygote
![Page 20: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/20.jpg)
ground
5) Diploid sporophyte grows from the zygote
sporophyte
![Page 21: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/21.jpg)
6) Fronds uncurls into leaves.
ground
7) Cycle repeats -- Haploid spores created and released
.
.
..
![Page 22: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/22.jpg)
Conifer Life Cycle
![Page 23: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/23.jpg)
1) Male and female seed cones grow in adult sporophytes
![Page 24: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/24.jpg)
2) Pollen grains released from the male seed cones-- Pollen is the male gametophyte
eggzygote
egg egg
egg
zygote
zygote
zygote
Male cones make pollen Female cones make eggs
![Page 25: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/25.jpg)
3) Seeds begin to harden inside the female cones
seed
seed
seed
seed
![Page 26: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/26.jpg)
4) Seeds released
![Page 27: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/27.jpg)
5) Seed will land
ground
![Page 28: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/28.jpg)
6) Seedling grows into (sporophyte)…the cycle repeats
ground
![Page 29: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/29.jpg)
1) Male and female seed cones grow in adult sporophytes
![Page 30: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/30.jpg)
eggzygote
egg egg
egg
zygote
zygote
zygote
Male cones make pollen Female cones make eggs
![Page 31: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/31.jpg)
3) Seeds begin to harden inside the female cones
seed
seed
seed
seed
![Page 32: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/32.jpg)
4) Seeds released
![Page 33: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/33.jpg)
5) Seed will land
ground
![Page 34: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/34.jpg)
6) Seedling grows into (sporophyte)…the cycle repeats
ground
![Page 35: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/35.jpg)
Angiosperm Life Cycle
![Page 36: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/36.jpg)
Pollen stick to animal or released into wind
![Page 37: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/37.jpg)
Animal finds a new flower to feed on
![Page 38: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/38.jpg)
Pollen transferred to the stigma….seeds develop
eggzygote
![Page 39: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/39.jpg)
Fruit ripens to help disperse seeds
zygote
![Page 40: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/40.jpg)
Fruit falls to ground
![Page 41: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/41.jpg)
Animals eat fruit….seeds come out the other end…cycle repeats
seed
![Page 42: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/42.jpg)
Pollen stick to animal or released into wind
![Page 43: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/43.jpg)
Animal finds a new flower to feed on
![Page 44: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/44.jpg)
Pollen transferred to the stigma….seeds develop
eggzygote
![Page 45: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/45.jpg)
Fruit ripens to help disperse seeds
zygote
![Page 46: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/46.jpg)
Fruit falls to ground
![Page 47: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/47.jpg)
Animals eat fruit….seeds come out the other end…cycle repeats
seed
![Page 48: Plant Life Cycles Meiosis Review Cell starts diploid –E–Ex: Human = 46 chromosomes Cell divides twice to create 4 cells End result: Haploid cells –E–Ex:](https://reader030.fdocuments.in/reader030/viewer/2022033107/5697bff21a28abf838cbbc7e/html5/thumbnails/48.jpg)
End of the Semester!