Biology Unit 2

The cell theory states that

All living things are made up of cells,

cells are the basic units of structure and function in living things,

new cells are produced from existing cells

8 Characteristic of life

Responds to environment

Obtain and use energy

Grows + Develops

Maintain Homeostasis

Produce offspring

Complex Chemistry

Made of cells

Evolve

Prokaryotes

Cells that do not contain nuclei

Eukaryotic

Has a nucleus

Pathogens:

disease causing agents

Types of pathogens

viruses, bacteria, Protozoa, fungi

Bacteria reproduction

asexual binary fission

Protozoa reproduction

MOSTY asexual( Binary Fission) and SOME sexual

Fungi reproduction

Spores

Budding and fruiting bodies( ASEXUAL)

Viruses reproduction

DO NOT REPRODUCE ON THEIR OWN must have host cell

Bacteria Genetic Code

Prokaryotes

Protozoa Genetic Code

Eukaryotes

Fungi Genetic Code

Eukaryotes

Viruses Genetic Code

has genetic code

How does Bacteria grow and develop

Cell enlargement

How does protozoa grow and develop

Cell enlargement

How does fungi grow and develop

Both cell enlargement and cell division

How does viruses grow and develop

NO IT CAN NOT

How does bacteria Obtain and use energy

Both Heterotroph and Autotroph

How does protozoa Obtain and use energy

Heterotroph

How does fungi obtain and use energy

External digestion

How does viruses obtain and use energy

NO MUST HAVE HOST CELL

How does bacteria Respond to environment

endospores (A function that protects the bacteria from hard)

How does protozoa Respond to environment

has movement

How does fungi Respond to environment

decomposers

How does viruses Respond to environment

YES can hide and destroy cells

Does bacteria Evolve

Yes can become resistant to antibodies

Does protozoa Evolve

Yes

Does fungi Evolve

Yes

Does viruses Evolve

YES CAN MUTATE

Is bacteria Made of Cells

YES IS UNICELLULAR

Is protozoa Made of Cells

YES IS UNICELLULAR

Is fungi Made of Cells

YES IS UNICELLULAR AND MULTICELLULAR

Is viruses Made of Cells

NO

Can Bacteria Maintain Homeostasis

YES it can Produces proteins

Can protozoa Maintain Homeostasis

Symbiosis mutualism

Can fungi Maintain Homeostasis

Symbiosis decomposer

Can viruses Maintain Homeostasis

NOOOOO

Homeostasis

process by which organisms maintain a relatively stable internal environment

Components of a virus

-nucleic acid,

-RNA or DNA - never both.