Fungus like Protists # 5
All fungus like protists are Heterotrophs. They have cell walls like a plant. They use
Spores to reproduce. They are able to move at some point in their lives.
The three types of Protist are: Water molds, Downy mildew and slime molds.
Water molds and Downy mildew: Live in water and moist places. . These organisms
grow as tiny threads that look like a fuzzy covering.
Downy mildew and water molds also attack food crops.
Slime mold: Live in moist soil and on decaying plants and trees. They are beautifully
colored. They move in an ameba like way by forming pseudopods. They feed on Bacteria
and other microorganisms.
During unfavorable conditions, they form a multicellular mass. Spore producing
structures grow out of the mass and release spores which can develop into a new
generation of slime molds.
Plant like Protist (Algae) # 6
All algae share common characteristics with plant: they are autotrophs.
Some algae live in soil, some on the barks of the tree while others in salt water and still
others in fresh water. They are an important source of food for other organisms. Majority
of the earth’s oxygen is made by these algae.
Algae’s come in variety of sizes. Some are unicellular, some are multicellular.
Sometimes unicellular algae come together to form colonies. In that case, some cells
become specialized to do certain tasks.
They come in variety of pigments.
Below is the list of different algae’s and their characteristics.
Eugleniod
Diatoms
Unicellular
Unicellular
Dinoflagellate
s
Unicellular
Green ,found
in fresh water
Autotrophs
and turn to
heterotrophs
when
sunlight is
not available
Flagellum
and a eyespot
Fresh water,
Saltwater
Autotrophs
Variety of
colors
Autotrophs
Glasslike Cell
wall
covered by
stiff plates
Forms
diatomaceous
earth: a good
polishing
agent. Added
to toothpastes,
used as
swimming
pool filters,
insecticides,
and household
scouring
products.
Green Algae
Red algae
Unicellular,
Colonies,
Multicellular
Green, freshwater,
salt water
Autotrophs
Multicellular Multicellular
Oceans
Autotrophs
Brown Algae
Cool, rocky
waters
Autotrophs
Sea weeds
Contains variety
of pigments, has
plant like
structures.
Carrageenan
substance
extracted
from algae is
used in ice
creams and
hair
conditioners.
Algins extracted
from algae used
in thickeners in
food.
Used as nutrients.