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Jam Islam

Tampilkan postingan dengan label Biologi. Tampilkan semua postingan
Tampilkan postingan dengan label Biologi. Tampilkan semua postingan

Kamis, 04 April 2013

The Various kind of movement plant

1.Autonomic Movement
   Movement that is not known yet its cause certainly but predicted this motion is caused by stimulus that comes from the body of plant itself

Example:
a) The flowing movement of cytoplasm in cell
b) The bending movement of leaf bud because of difference of growth velocity
c) Movement that is shown by plant when grows such as the growth of root, steam, leaf and flower
2.Exogenous Movement
   Exogenous movement is plant movement that is caused by external stimulus. For example light, earth gravitational force, water, touch and chemical substance.
Example:
a) The opening and closing of mimosa pudica leaves
b) The opening and closing of stomata
3.Hygroscopic Movement
    Hygroscopic movement is movement of part of plant that is caused by the influence of the change of water level from its cells so happens nonhomogenous wrinkling.
Example:
a) The breaking of dried nut fruit Leucaena glauca castor Caesalipinia pulcherrima
b) The opening of sporangium in fern as the cause of the wrinkling of annulus cells.

B.THE VARIOUS KIND OF EXOGENOUS MOVEMENT IN PLANTS
1.Nastic Movement
   Nastic movement is plant movement to stimulus, that its direction is not determined by stimulus but by the plant itself.
According to its cause, nastic movement is separated into five kinds, those are photonasty, nictinasty, thigmonasty, thermonasty and complex nasty
a.Photonasty
    Photonasty is nasty movement that is caused by stimulus of sunlight.
Example:
1) The opening and closing of Mirabilis jalava at certain time when there is light
2) The blossom of sun flower
b.Nictinasty
    Nictinasty is nasty movement that is caused by dark condition (sleeping movement)
Example:
1) The closing of leaves of butterfly flower at night
2) The closing of compound leaves in Leucaena glauca at night
c.Thigmonasty
     Thigmonasty is nasty movement that is caused by stimulus of  touch.
Example:
1) The closing of leaves of Mimusa pudica when touched



d.Thermonasty
 Thermonasty is nasty movement that is caused by temperature stimulus
Example:
1) Tulip flower will develop if suddenly gets temperature increment and close anymore if temperature decreases
e.Complex Nasty
     Complex nasty is nasty movement that is caused by several factors altogether, such as CO2  (carbon dioxide) level, level of Ca ions, temperature, sunlight, chemical substance, and water.
Example:
1) The opening and closing of stomata. The opening and closing of stomata is influenced by sunlight, chemical substance, and water


2.Tropism movement
     Topism movement of part of plant body to stimulus that its movement direction is determined by the stimulus.
Tropism is divided into two parts, namely positive tropism and negative tropism

a.Positive Tropism
     Positive tropism is tropism movement that goes to the coming of stimulus.
Example:
1) The tip of plant that formerly straight upward, because the influence of sunlight that cames from side, its tip bends to the direction of incoming sunlight.

b.Negative Tropism
      Negative tropism is tropism movement that its direction leaves stimulus.
Example:
1) Stem moves away or leaves stimulus of  Earth gravitational

According to the kind of  its stimulus, tropism is separated into five, that is phototropism, geotropism, chemotropism, thigmotropism, and hydrotropism

1) Phototropism
Phototropism is tropism movement that is caused by the stimulus of  sunlight.
Example:
1) The tip of plant that lies in room will bend to direction of incident light

2) Geotropism
Geotropism is tropism movement that follow Earth gravitational force.
Geotropism is divided into two, those are as follows:
a) Positive Geotropism
Positive geotropism is geotropism movement that its direction is downward (going to Earth).
Example:
1) The tip of root grows to the direction of  gravitation

b) Negative Geotropism
Negative geotropism is geotropism movement that its direction is upward (leaving Earth).
Example:
1) The tip of stem grows upward leaving gravitational force

3).Chemotropism
Chemotropism is tropism movement that is caused by stimulus of chemical substance. Chemotropism is separated into two kinds, those are as follows:
a) Positive Chemotropism
Positive chemotropism is chemotropism that its direction approaches source of stimulus.
Example:
1) The movement of root to food substance in soil

b) Negative Chemotropism
Negative chemotropism id chemotropism movement that its direction is leaving source of stimulus.
Example:
1) Movement of root leaves poison.

      4).Thigmotropism
Thigmotropism is tropism movement that is caused by stimulus of touch to header thing.
Example:
1) In plant that has tendril. If that tendril touches hard thing then it will happen contact and finally that tendril can twist the hard thing.

5) Hydrotropism
Hydrotropism is the movement of plant root that is influenced by reservation of soil water.
Example:
1) Root grows straightly downward, but if in this direction is not found enough of water, then the root will grow bending to the direction that has enough of water.

3.Taxis Movement
    Taxis is transfer movement of all body to stimulus that its direction is determined by the stimulus.
    Based on the kinds of its stimulus, taxis is separated into three kinds namely phototaxis, chemotaxis, and galvanotaxis

a) Phototaxis
Phototaxis is taxis movement that is caused by stimulus of sunlight.
Example:
1) The movement of chlorophyll to the surface that gets light and movement of spore that has flagella to the light place.

b) Chemotaxis
Chemotaxis is taxis movement that is caused by chemical stimulus.



Example:
1) Movement of spermatozoid (part that is formed by plant) of moss plant and fern to ovum that is found in archegonium attracted to the sugar or protein that is produced by archegonium
 
c) Galvanotaxis
Galvanotaxis is taxis movement toward electric current direction.
Example:
1) Bacteria that is interested to positive (+) or negative (-) load.  

Proses terjadi kehamilan


Proses Terjadinya kehamilan. Ketika seorang perempuan melakukan hubungan seksual dengan seorang laki-laki maka bisa jadi perempuan tersebut akan hamil (Terjadinya kehamilan). Kehamilan terjadi ketika sel sperma yang masuk ke dalam rahim seorang perempuan membuahi sel telur yang telah matang. seorang laki-laki rata-rata mengeluarkan air mani sebanyak 3 cc, dan setiap 1 cc air mani yang normal akan mengandung sekitar 100 juta hingga 120 juta buah sel sperma. Setelah air mani ini terpancar (ejakulasi) ke dalam pangkal saluran kelamin istri, jutaan sel sperma ini akan berlarian melintasi rongga rahim,
saling berebut untuk mencapai sel telur matang yang ada pada saluran tuba di seberang rahim.Pada saat ovulasi, lapisan lendir di dalam serviks (leher rahim) menjadi lebih cair, sehingga sperma mudah menembus ke dalam rahim. Sperma bergerak dari vagina sampai ke ujung tuba falopii yang berbentuk corong dalam waktu 5 menit. Sel yang melapisi tuba falopii mempermudah terjadinya pembuahan dan pembentukan zigot (sel telur yang telah dibuahi). Jika perempuantersebut berada dalam masa subur, atau dengan kata lain terdapat sel telur yang matang, maka terjadilah pembuahan.Pada proses pembuahan, hanya bagian kepala sperma yang menembus sel telur dan bersatu dengan inti sel telur.Bagian ekor yang merupakan alat gerak sperma akan melepaskan diri. Sel telur yang telah dibuahi akan mengalami pengerasan bagian luarnya. Ini menyebabkan sel telur hanya dapat dibuahi oleh satu sperma.
Inti sel telur yang sudah dibuahi akan mengalami pembelahan menjadi dua bagian setelah 30 jam. 20 jam kemudian inti sel telur ini akan kembali membelah menjadi empat bagian. Tiga sampai empat hari setelah pembuahan, sel akan sampai di bagian uterus.Dalam jangka waktu satu minggu setelah perubahan, akan dihasilkan suatu massa sel yang berbentuk ola sebesar pentol jarum, yang disebut (blastocyt). Dalam proses selanjutnya, yaitu sekitar 5 hari berikutnya, blastosis akan menempel dan terimplantasi kedalam endometrium.
Selama dua hingga empat minggu pertam perkembangan, blastosis medapatkan nutrien dari endometrium. Pada masa perkembangan ini, akan berbentuk plasenta. Plasenta merupakan organ berbentuk cakram yang mengandung pembuluh darah maternal (ibu) dan embrio. Melewati plasenta inilah, embrio akan mendapatkan nutrisi dari maternal. Melalui lasenta ini juga terjadi pertukaran gas-gas respirasi dan pembuangan limbah metabolisme embrio. Darah dari embrio mengalir ke plasenta melalui arteri tali pusar dan kembali melalui vena pusat dan melewati hati embrio.

sumber : ikf-think.blogspot.com

Rabu, 03 April 2013

Tuesday, April 2, 2013 MOVEMENT IN PLANT

  • 2. • Based on its stimulus, the movements in plant are grouped into three : 1. HYGROSCOPIC MOVEMENT 2. ENDOGENOUS MOVEMENT 3. EXOGENOUS MOVEMENT /ETIONOM
  • 3. HYGROSCOPIC MOVEMENT• Is movement of part of plant that is caused by the influence of the change of water level from its cells so happens non-homogenous wrinkling• Example  the breaking of dried Calanchoe pinnata fruit (pacar air)  the opening of sporangium in fern as the cause of wrinkling annulus cells
  • 4. ANULUS
  • 5. The opening of sporangium of moss as the causeof the wrinkling peristome cells
  • 6. ENDOGENOUS MOVEMENT (autonomic)• Is movement that is not known yet its cause certainly but predicted this motion is caused by stimulus that comes from the body of plant itself.• Examplesthe flowing movement of cytoplasm in cellthe bending movement of leaf bid because of difference of growth velocity
  • 7. EXOGENOUS MOVEMENT (etionom/esionom)• Is plant movement that it is caused by external stimulus• External stimulus such as : Light, gravity, water, touch, and chemical substance
  • 8. The various kinds of exogenous movements in plants1. Tropism movement2. Nastic movement3. Taxis movement
  • 9. TROPISM MOVEMENT• Is movement of part of plant to stimulus that is movement direction is determined by the stimulus• Kinds of tropism 1. phototropism 2. geotropism 3. chemotropism 4. thigmotropism 5. hydrotropism
  • 10. PHOTOTROPISM• Is tropism movement that caused by stimulus of light• Examples  the tip of plant that lies in room will bend to direction of incident light
  • 11. GEOTROPISM• Is tropism movement that follows earth gravitational force• positive geotropism is geotropism movement that its direction is downward• Negative geotropism is geotropism movement that its direction upward
  • 12. GEOTROPISM
  • 13. CHEMOTROPISM• Is tropism movement that is caused by chemical substances stimulus• Example :  the movement of root to food/fertilizer substance in soil
  • 14. THIGMOTROPISM• Is tropism movement that is caused by stimulus of touch to harder thing• Example  Tendril of plant movement
  • 15. HYDROTROPISM• Is the movement of plant root that is influenced by reservation of soil water.
  • 16. NASTIC MOVEMENT• Is plant movement to stimulus, that its direction is not determined by stimulus but by plant itself• Kind of nastic movement 1. photonasty 2. nictinasty 3. thigmonasty 4. thermonasty 5. complex nasty
  • 17. PHOTONASTIC• Is nasty movement that its caused by stimulus of light• example  the opening of Mirabilis jalapa flower at certain time
  • 18. NICTINASTY• Is nasty movement that its caused by dark condition (sleeping movement)• Examples  the closing of Butterfly flower ‘s leaves at night  the closing of compound leaves of Leucaena glauca at night
  • 19. THIGMONASTY/seismonasty• Is nasty movement that it’s caused by stimulus of touch• Example  the closing of leaves of Mimosa pudica when touched
  • 20. THERMONASTY• Is nasty movement that is caused by temperature stimulus• Example  Tulip flower will bloom if suddently get temperature increasement
  • 21. COMPLEX NASTY• Is nasty movement that is caused by several factors altogether• Example  the opening and closing of stomata is influenced by light, chemical substance and water
  • 22. Picture The Opening And Closing Of Stomata
  • 23. TAXIS MOVEMENT• Is transfer movement of all part of plant to stimulus that its direction is determined by the stimulus• Kinds of taxis movement 1. phototaxis 2. chemotaxis
  • 24. PHOTOTAXIS• Is taxis movement that is caused by stimulus of light• Example  the movement of chlorophyll to surface/nearer surface the leaves to get the light
  • 25. CHEMOTAXIS• Is the taxis movement that is caused by chemical substances stimulus.• Example  movement of spermatozoid of moss and fern to ovum that is found in archegonium attracted to the sugar or protein that is produced by archegonium
  • 26. Do The Exercise Chapter 8 Page 199 – 200Multiple Choices and Essay Just The Answers Do on your notebook
  • 27. You can also download this slide on http://www.slideshare.net/alfikesturiOr on http://www.authorstream.com/kesturi Created by Alfie_MSK, A Biology teacher of GIS JH
sumber : fauzibkogger.blogspot.com