Transcript Science 6 Unit 3 - secondary

Science 6
Unit 3
Lesson 8
What are Bacteria, Fungi, and
Protists Like?
Start Up

Get out your packet and
work on the supplemental
material.

Objectives
– Identify the major groups
of organisms that are not
classified as plants or
animals
– Describe the basic
characteristics of Protists
– Identify major groups of
protists
– Describe the basic
characteristics of fungi
– Identify major groups of
fungi
– Describe the basic
characteristics of bacteria
Bacteria

One-celled organisms without a nucleus
– Belong to Kingdom Monera
– Microscopic organisms
– Some decompose
– Can cause illness
 Black Plague
Louis Pasteur
Demonstrated microorganisms caused
wine and milk to spoil
 Invented pasteurization

– What is it?
Helpful Bacteria
Some recycle nitrogen
 Help us digest foods

I’m a fungi!

Fungus- an organism that absorbs its food
from dead, dying, or living materials
– Includes yeasts, molds, and mushrooms
Yeast is one-celled and reproduces
dividing cells
 Most fungus reproduce using spores

More Fungus
Most are decomposers
 Few absorb nutrients from living tissues
 Uses

– Eat mushrooms
– Yeast raises bread
– Mold is medicine
Protist

An organism that is not an animal, plant,
bacteria, or fungus
– Most are one-celled
– Have nucleus
– Some use photosynthesis
Protozoan

A Protist that has some characteristics of
animals
– Most live in water or moist places
 Example: Amoebas