1. SCIENCE 8 GRADE
SEMESTER 1
Created by Kak Mayya

2.  The differences between Growth and
Development
 Phase of growth in plants
 Germination
 Factors affecting the growth and development
in plants

3.  Accretion processes of  Process changes to the
the body due to the structure and function
volume of the number of cells a specific
and size of cells  Marked changes in
 Irreversible form and level of
maturity
 reversible
GROWTH DEVELOPMENT

4. 1. Germination, is the emergence of small
plants from seeds

5. Type of germination:
Epigeal, there hipokotil elongation so that
seed (cotyledon) elevated above the ground.
For example in the green beans, soybeans
(the majority of the plants dikotil)
Biar ga
lupa....ingat!!!
EDIGEAL
Yang epigeal
biasanya dikotil

6. Type of germination:
Hipogeal, there epikotil elongation so that the
seeds (cotyledons) remain in the soil. For
example in beans, peas, corn, wheat.

7. 2. Primary growth, which is growth in the
longitudinal direction as a result of the
activity of the apical meristem.
Apical meritem:

8. 3. Secondary growth, which is growth in the
direction of widening, the cambium
activity, only occurs in plants dikotil.

9. Primer=memanjang = Meristem
Sekunder=melebar = Kambium

10.  Gen  Water and minerals
 Hormone  Temperature
 Humidity
 Light
INTERNAL FACTORS EXTERNAL FACTORS

11. Auksin Mempengaruhi peristiwa:
Turn stems grow
Stimulate the toward light
elongation of stem approaching
cells
Apical dominance,
so that high
growth
Formation of fruit
and flowers Etiolation

12. Giberelin
Partenocarp fruit
stem grows a giant
Germination
flowering

13. Sitokinin
inhibits the Aging
Root growth Inhibit the apical dominance
So that the plant did not
raised

14. JENIS HORMON FUNGSI
Absisat acid •inhibit the growth
•cause dormancy
Etilen Stimulates the maturation of fruit
Traumalin Acid Stimulate wound closure