Algae

Page 1

What

is algae?

-simple

plant

-have

chlorophyll for photosynthesis

Plant

VS Algae

-algae

lack of vascular conducting system

-algae

have a simple reproductive system compared to ordinary plant

Page 2

Characteristic

of algae

-photoautotrophic

-need

water

-sexual

and asexual

-most

can be found at moist place (rock)

Page 3

Cell wall of algae

-have

diff component.

-some

made up by chitin

-some

no cell wall

-strengthen

by calcium carbonate, coralline algae

Page 4

Distribution

of algae

a)

planktonic = suspended in aqueous environment

b)

benthic = at bottom of water

c)neustonic

= at water atmosphere interface

Page 5

Algal

reproduction

asexual

– fragmentation (involve thallus)

-

spores

-

binary fission

sexual

reproduction

-involve

female structure and male structure

Female

structure – oogonia

Male

structure – antheridia

-à fuse together form zygote

Page 6

Benefits

of algae

-provide

habitat for marine life

-source

of food to human and marine life

Disadvantages

of algae

-also

cause algal bloom due to excessive of nutrition supply to the algae

-cause

red tide by dinoflagellates

-kill

other organisms

Page 7

Taxonomy

-Chlorophyta

-rhodophyta

-phaeophyta

-chrysophyta

-phyrrophyta

*they

can be differentiate from the cell wall,chlorophyll,and the habitat of the

algae*

Page 8

Slime

molds

-its

look like fungi in appearance

-also

same in life cycle of fungi

BUT

-different

in cellular organization and reproduction

Function

of molds

-decaying

wood

-engulf

bacteria (act as predator)

-act

as decomposer and consumer in atmosphere

-recycling

nutrient and also can cause diseases to plant.

Page 9