1. What are algaes?

2. What is their main function?

1. Aquatic autotrophs that don't need to protect the zygote from drying out.

Group by their color & biochemical differences - chemistry of the cell wall and the way they store food-.

2. Produce food for oceanic and fresh water communities.

 What are the characteristics of Chlorophyta?

What are the changes that occurs in this algae?

Green algae, have a cell wall of cellulose, have both chlorophyll a and b.

When conditions are favorable, asexual reproduction occurs, otherwise sexual reproduction occurs.

What is the kingdom and domain of Algaes?

Kingdom -> Eukarya

Domain -> Protist

Volvox

-Phylum- Chlorophyta

Green Algae

-Colonial

-Asexual-daughter cells

- Sexual- sperm and egg(involves heterogametes)

-Haplointic

TRYPANOSOMES

Protozoans

-Phyla - Zoomastigophora

Spyrogira

-Phylum- Chlorophyta

A filamentous Green Algae

-Sexual-conjugation

-Haplontic

1. Chlorplast

2. Pyrenoid

3. Nucleus

4. Cytoplasm

5. Cell Wall

6. Gelatinous Sheath

Alteration of Generation

- the organism passes through both haploid and diploid stages.

Such as the fern

Diplontic Cell Cycle

- The organism is diploid and the gametes are th only haploid stages.

Such as the elephant

Haplontic Cell Cycle

- The organism is haploid and the gametes is only diploid stages.

Such as, fungus

Euglenoids

-Unicellular, flexibles with flagela and red eyespot

Euglena

- Phyla- Euglenophyta

Amoeba

- Phylum - Rhizopoda

What are Protozoans?

What are their characteristics?

Typically heterotrophic, motic, unicellular organisms. clasified according to their locomotion.

They have:

-food vacuoles

-contractile vacoules

-some reproduce sexually

-haplontic life cycle

-Phylum-

-Rhizopoda-

Amoeboids - moves by pseudopods and eat by phagocytosis.

Amoeba Proteus - lives in fresh water.

Entamoeba histolytica - causes amoebic dysentery

-Phyla-

-Ciliophora-

Ciliates - move by cilia

Cilia of Paramecium - extend through a semi-rigid pellicle.

Two types of nuclei:

- macronuclei- controls cell metabolism.

- micronuclei - are exchanged during sexual reproduction.

Paramecium Conjugation

- Phyla - Ciliophora

-Phyla-

Zoomastigophora

-Move by flagela.

-Can cause disease.

Organism:

-Trichonympha- lives in gut of termintes.

-Giarda lamblia- causes severe diarrhea.

-Trichomonas vaginalis- infects vagina/prostate

-Tripanosome- causes African sleeping sickness.

-Phyla-

Sporozoa

-Nonmotile parasites of animals that forms spores.

Organism:

-Plasmodium Vivax- causes malaria

-Pneumocystis- causes pneumonia on AIDS patients.

-Phyla-

Sporozoa

Plasmodium Vivax

-Phylum-

Chlorophyta

-Clonial Green Alga.

-daughter colony produce by mytosis.

-Zygotes undergo meiosis to produce haploid adult filaments.

-Phylun-

Phaeophyta

Brow Algae

-Has chlorophylls a and c.

-Carotenoid pigments gives the color.

Red Algae

Multicellular algae of economic importance.

Organism:

-Coralline algae- have cell walls of calcium carbonate.

-Plysiphonia-

Amoeba

-Phyla-

Rhizopoda

Polysiphonia

-Phylum- Rodophyta

Red Algae

Spyrogia Conjugation

-Phylum- Chlorophyta

Green Algae