1. ALGA

3. • Merupakan organisme eukariotik autotrof
• Mengalami fotosintesis
• bukan tanaman
• Sebagian besar warna dipengaruhi oleh :
-Klorofil a
-karotenoid
-biloprotein

4. Characteristics :
• Plant-like organisms with very simple structure and
having no roots, stems, or leaves.
• One-celled or many-celled; if multicellular, have a
single-cell embryo within female reproductive
structure.
• Cells have chloroplasts and a nucleus contained within
membranes (blue-green algae is an exception).
• Most make food using light energy (photosynthetic).
• Are aquatic, either primarily in a body of water or in
moist tissues of other organisms (some live in ice and
snow and on moist soil)

5. Struktur vegetatif alga
• Tubuh alga disebut thallus
• Sebagian besar dalam bentuk fitoplankton
• Tipe alga : Uniseluler, kolonial, berfilamen, dan
multiseluler

6. Daur hidup alga
Siklus hidup Laminaria, alga coklat

7. Fisiologi Alga
Ciri Keterangan
PH optimum 4-11
Suhu optimum 20-30o C
Gas Aerob
Cahaya untuk tumbuh Semua (kecuali beberapa spesies)
Karbon Sebagian besar anorganik
Komponen struktural dinding sel Sebagian besar selulosa; digantikan oleh
xilan dan manan pada beberapa spesies

8. Taxanomy :
• Kingdom : Monera
– Division: Cyanophyta (blue-green algae)
photosynthetic bacteria
• Kingdom : Protista
– Division: Charophyta (stoneworts and brittleworts)
Chlorophyta (green algae) Cryptophyta (cryptophytes)
Chrysophyta (golden algae)
• Class: Bacillariophyceae (diatoms)
– Dinophyta (dinoflagellates) Euglenophyta (euglenoids)
Phaeophyta (brown algae) all marine "seaweeds" Rhodophyta
(red algae) most are marine, but a few are freshwater

9. Klasifikasi Alga
• Cyanophyta
• Rhodophyta
• Cryptophyta
• Pyrrophyta
• Raphidophyta
• Haptophyta
• Chrysophyta
• Xantophyta
• Chlorophyta
• Eustigmatophyta
• Phaeophyta
• Prasinophyta
• Bacillariophyta
• Glaucophyta

10. Chrysophyta