VAKUOLA

Gardhani M. Issaac (04)Merlin Masruroh (10)

Vakuola ???

Function ???

Vakuola

Tonoplas

Vacuole is cavity of cell that containing liquid and limited by membrane called tonoplasIn adult plant cell generally have one big vacuole cover 80% from part of cell. Progressively adult of is amount of vacuole decrease, but big size measure. Plant cells owning big vacuole usually is cells of parenkim and of kolenkim.Tonoplas, representing selective membrane of permeabel, dissociating sitosol with condensation in vakuola which [is] its composition differ from sitosol.

Liquid of vakuola containing :

organic salts glikosida tanin oil of eteris ( for example jasmine in jasmine plant ,

roseine in rose, zingiberine in ginger) alkaloid ( for example caffeine, kinin, nicotine,

likopersin, and others) enzyme, vacuole plant, sometime contain enzyme of

hidrolitic able to act as lifetime lisosom. After dead cell, tonoplas losing of nature of its diferensial it him so that its enzymes get away exit cause autolisis ( crushing of x'self).

Pigmen, Vacuole there is containing of pigment in the form of condensation, like antosian, including rose colored antosianin, blue, and crimson, also ivory colour and turn yellow. Antosian can give colour at flower, fruit, sprout, and leaf. This matter, good for drawing insect, bird, and meritorious other animal to seed disseminating or pollination.

cell secretion O2

CO3

Vacuoles of protozoa in the form of:1) Vacuole contractile2) Vacuole noncontractile

a.) Vacuole contractileVacuola Contractile referred as also vakuola beat. Vacuole Contractile have function as osmoregulator that is arranging value of osmotik in cell.

b.) Vacuole noncontractileVacuole Noncontractile referred as also food vakuola, functioning to digest food and circularize result of digestion of food to entire/all body.

FUNGSI1. maintain pressure: osmotic cell2. synthesis of results in the form of glycogen

storage, phenol, etc3. organize the circulation of substances in cells4. Including water through tonoplas having the

character of permiabel diferensial to develop cell turgor

5. Vakuola there is containing pigment that able to give colour in shares - part of plant . This matter, good for drawing insect, bird, and meritorious other animal to seed disseminating or pollination.

6. Become metabolism pickings hoard place, like calcium crystal of oksalat and some alkaloid, like tanin.

7. Become dissolve food Iihat vitamin repository which at any times can be used by sitoplasma. For example, mineral salt and sukrosa.

SEKIANWassalamu’alaikum Wr. Wb