report of biologi experiment


REPORT OF BIOLOGI EXPERIMENT
About Thigmonasti Movement
In Mimosa Pudica Plant

Objective:
Understanding about thigmonasti movement in mimosa pudica plant

Prosedur:
a) find a mimosa pudica plant
b) touched the plant on:
-leaflet
-base of leaflet stalk
-base of leaf stalk
    (by pencil and burning stick)
c)wait until the leaf back normal
d)write the result on the table

                                                         










action
changes
When it is touched
Times nedded to back normal
Touched by pencil:
a) leaflet
b) base of leaflet stalk

c) base of leaf stalk

a) close in one by one
b) close in together one stalk
c) close in with the base that we touched

a)     2.5 minutes
b)    3 minutes

c) 3.5 minutes
Touched by burning stick:
a) leaflet
b) base of leaflet

c) base of leaf stalk




What happens when the Mimosa Pudica leaf is touched ?
·        the leaf are closed by self

What is the different direction when it is touché by the parth?
·        When we touch the leaflet, the leaf close in one by one
·        When we touch the base of leaflet stalk, the leaf close in together with one stalk
·        When we touch the base of leaf stalk, the leaf close together with the base of leaf

CONCLUTION:
The leaf of mimosa pudica can close by self if it is touched.
Why like that???
Because mimosa pudica have characteristic that is “THIGMONASTI MOVEMENT”
Thigmonasti movement is nastic movement that caused by touch.










YUSNA IIN FRANTINA
VIII A/ 28