WARM UP

WARM UP

In your warm up notebook, Draw and explain the stages of how a virus reproduces.

How does the protist population interact with its environment?

First, Let’s refresh your memories

What are the 7 levels of classification? And the sentence to help you remember? King Phillip Came Over For Great Spaghetti.

Kingdom, Phylum, Class, Order, Family, Genus, Species

What are the 6 characteristics of life? Grow, has cells, reproduce, respond to

environment, use energy, evolve On a microscope, what objective do you start

on? What adjustment do you turn? Smallest powered one, Coarse adjustment: aka the

big one

What are the kingdoms of bacteria and what is classified in those? Eubacteria: common bacteria, found everywhere.

Archaebacteria: old bacteria, found in extreme environments

Is bacteria alive? YES

Is a virus alive? NO

Does bacteria make a virus? NO

Protist, what is it?

Protists belong to the Kingdom Protista, which include mostly unicellular organisms that do not fit into the other kingdoms. “Junk Drawer” Kingdom

A protist is any organism that is not a plant, animal or fungus

Characteristics of Protists

Mostly unicellular, some are multicellular (algae)

can be heterotrophic (can’t make own food) or autotrophic (make own food)

most live in water (though some live in moist soil or even the human body)

ALL are eukaryotic (have a nucleus)

Amoeba

Moves using pseudopods ( "false feet" ), which are extensions of the cytoplasm.

Animal-like cell, heterotrophic.

Watch an ameba!

http://animal.discovery.com/videos/monsters-inside-me-the-brain-eating-amoeba.html

endoplasm

What those parts do!

1. Movement and trap food (pseudopods) 2. Let’s things in and out of cell.(cell

membrane) 3. Where food is digested .(food vacuole) 4. Collects excess water and squirts it out.

(contractile vacuole) 5. Has DNA. Is the control center (brain)

(nucleus) 6. Filling for cell. (endoplasm)

Plant-Like Protists

Commonly called algaeAutotrophicTypes:

Green, red, brown algaeDiatomsDinoflagellates*Euglenas

Euglena

Euglena is a bright green in color, a unicellular organism that lives in freshwater.

Can be described as a protozoa with mixed characteristics of both plant and animal.

Euglena are autotrophs since they make food from sunlight (photosynthesis) and

Heterotrophs since they ingest food from surrounding water.

Plant and Animal?

Euglenas

They are similar to plants because they can prepare their food by photosynthesis.

Their resemblance with animals lies with the fact that it can move around from one place to another.

Functions

1. Movement (flagellum)2. Finds light so cell can do

photosynthesis to make its own food. (eyespot)

3. Food- making factory (chloroplast)4. Holds shape and allows “in and

out”(pellicle)