Kingdom Protista part II- Algae

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Slide 1

Kingdom Protista

The Catchall Kingdom

Slide 2

Algae

Slide 3

Characteristics of Algae

Autotrophic

Not plants – why?

Often contain pyrenoids

Slide 4

Structure of Algae

Thallus or body

Unicellular or multicellular

Colonial: Volvoz

Filamentous: Spirogyra

Multicellular: Ulva

Asexual and sexual reproduction

Slide 5

Phylums

Phylum Chlorophyta

Phylum Phaeophyta

Phylum Rhodophyta

Phylum Bacillariophyta

Phylum Dinoflagellata

Phylum Chrysophyta

Phyla Euglenohyta

Slide 6

Phylum Chlorophyta

Look

familiar?

Slide 7

Continued…

Green algae

Many different forms

Gave rise to land plants – why?

Choroplasts that contain a and b cholorphyll

Have carotenoids

Cell walls of cellulose

Slide 8

Ulva

Slide 9

Colonial Chlorophyta

Slide 10

Phylum Phaeophyta

Brown algae

Marine

Seaweed and kelps

Cooler areas of ocean

Fucoxanthin pigment

Store food as laminarin

ALL multicellular

Stemlike stipe

Leaflike region called blade

Slide 11

Slide 12

Phylum Rhodophyta

Red algae but colors vary

Marine seaweeds

Smaller than brown algae and live in deeper waters

Phycobilins – pigment for absorbing light

Some coated with polysaccharide carageenan – cosmetics, gel capsules, cheeses

Agar – extracted from cell walls of red algae

Slide 13

Slide 14

Slide 15

Phylum Bacillariophyta

Diatoms

Shells fit together like a box with a lid

Centric and pennate

Main component of phytoplankton