Download WEEKLY TOPIC: Homework:

WEEKLY TOPIC:
Classifing living Things
Today You Need Out:
1. Agenda Book
2. Unicellular Organisms
guided notes
Week’s Agenda:
1. Review of what is a living
organism is
2. Introduction to unicellular
organisms
Homework:
Cell project
Warm Up
What is the importance of a
dichotomous key?
Weekly Vocabulary:
What is an living
organism review
Living things
▶ 1. living things
are made of cells
▶ 2. living things
grow and develop
▶ 3. living things
reproduce
▶ 4. Living things
use energy
▶ 5. Living things
respond to their
environment
Living things
Cells are basic building blocks of
life
Autotrophs are organisms that
make their own energy
Heterotrophs are organisms that
rely on other living things to gain
energy
Living things
Taxonomy branch of science
which classifies organisms by
appearance and behavior
Dichotomous key is a tool that
allows us to determine the
identity of organisms
King Phillip Came Over For Good Spaghetti
PROTISTS 4+
EUGLENA, AMOEBA, PARAMECIUM,
VOLVOX
What is a protist?
.
• Protist—an organism
from the Kingdom
Protista
• Very diverse group of
single-celled organisms.
• Eukaryotic (They have
nuclei.)
• `
Common Protist
Draw the table. Use a full page. 5 columns, 5 rows.
Protist
Name
Euglena
Amoeba
Paramecium
Volvox
Sketch
Movement
Food
source
(Energy)
Special
Features
EUGLENA
Euglena
•Found in calm fresh and saltwater
• Autotroph – gets energy via photosynthesis
• Heterotroph —also gets nourishment
heterotrophic like animals
• Has features of both plants and animals
• Kingdom Protista
•Reproduces asexual
Euglena
•
•
•
•
•
Moves by a flagellum
eye spot
Contains chloroplasts
Common in freshwater
No cell wall so it can change shape.`
AMOEBA
• Found in
freshwater and
saltwater around a
lot of dead and
decaying material.
• Hunter
• Can be parasite in
humans
Amoeba
•
•
•
•
Changes shape dramatically
Heterotrophic
Eats bacteria, algae, and other protists
Reproduces asexually
•Movement- The cell shapes itself into
pseudopods (false feet)
•amoeba video
Amoeba
• Reproduction- - asexual
PARAMECIUM
• Found in
freshwater.
• Cilia sweep food
into food
passageway.
Paramecium
•
•
•
•
Shape of a pill capsule
Heterotrophic
Relatively large
Common in pond scum and
freshwater
• Has two nuclei (macro and
micro)`Sexual reproduction
Paramecium
• Uses cilia to sweep food into the
oral groove
• Feeds on microorganisms like
bacteria, algae, and yeasts
• Is covered in cilia so it spirals
through water`
VOLVOX
• Found in ponds
ditches and
puddles.
• Composed of a
colony of more
than 50,000 tiny
cells
• Often called algae.
Volvox continued…
• photosynthesis
and flagella
help bring in
nutrients.
• Eyespots
sense light.
Volvox continued…
• Movement- Many
flagella help move the
colony.
• Reproduction- asexual
and sexual
Volvox
• A spherical colony of
up to 50,000 cells
• Contains chloroplasts
•Moves and acts as one multicellular organism
but one cell can survive independent of the
colony`
Volvox
• Type of green algae
• freshwater – ponds, ditches,
puddles, lagoons
• Colonies use flagella to swim
• Cells have eyespots
• Makes food by photosynthesis
Volvox Videos
Watch them re
volve.
• video 1
• video 2
Common Protists
Protists Groups and Features
Protist1
Euglena
Amoeba
Paramecium
Volvox
Sketch
Draw Table below on Page ?
Movement
Food
source
(Energy)
Special
Features
Common Protists
Protist
Sketch
Movement
Food source
(Energy)
Specialized
Features
Protists Groups and Features
Unicellular
Flagellum
Feeds on other
organisms; Also
makes its own
food by
photosynthesis
Unicellular
Pseudopods
Feeds on other
organisms
Unicellular
Cilia
Feeds on other
organisms
Lives in colonies
Flagella
Makes its own
food by
photosynthesis
Euglena
Amoeba
Paramecium
Volvox
Eyespot
Oral groove and
contractile
vacuole
Volvox