Introduction

Question 1

What are the 3 domains of life?

Answer 1

• Bacteria
• Archea
  -Eukarya (protists, fungi, plants, animals)

Question 2

Describe and name their domains
Eukaryote:
Prokaryote:

Answer 2

Eukaryote- larger, contain membrane bound organelles, have nucleus, genetic material is kept separate from rest of cell
- domain: Eukarya (fungi, Protozoa, algae)

Prokaryote- smaller and lack membrane bound organelles
Domain: bacteria and archaea

Question 3

Bacteria
Prokaryotic or eukaryotic?
Size?
May grow as single cells, _____ and communities
Cells well contains what?

Answer 3

Prokaryotic
0.2-20 mm
Filaments
Peptidoglycan

Question 4

Archaea
Prokaryote or eukaryote?
When cell walk is present it lacks _______
Genetically _____ from
No know pathogens
Also known as what?

Answer 4

Prokaryotic
lacks peptidoglycan
Genetically distinct from bacteria
”extremophiles”

Question 5

Protozoa
Prokaryote or eukaryote?
Motile _____ celled organisms
May be free living or _____

Answer 5

Eukaryotic
Motile, single celled organism
Parasitic

Question 6

Algae
prokaryote or eukaryote?
Contain ____ and conduct ______
Base of the food web
Cell wall contains _____

Answer 6

Eukaryotic
Contains chloroplasts and conduct photosynthesis
Cellulose

Question 7

Fungi
prokaryote or eukaryote?
Grow by ______ ______ from surrounding
Grow as _____ cell or filaments
Cell walls contain _____
Can cause _____

Answer 7

Absorbing nutrients
Grow as single cells or filaments
Chitin
Disease

Question 8

Viruses are noncellular
Genetic material is ____ or ____
Non metabolic: do not contain _____ or _____ generating machinery
Can they produce independently?

Answer 8

DNA or RNA
Ribosomes or ATP generating machinery
No thy can not produce independently

Question 9

Define pathogenic

Answer 9

Causes disease

Question 10

Species name that caused the bubonic plague

Answer 10

Yersenia pestis

Question 11

Define Endosymbiosis

Answer 11

Organisms live symbiotically inside another organism

Question 12

Lynn Margulis proposed that ______ cells were able to develop complex compartments such as _______ and ______ by engulfing and merging with ________ cells

Answer 12

Eukaryotic cells
Mitochondria and chloroplasts
Bacterial cells

Question 13

Define geochemical cycling

Answer 13

The global intervention of inorganic and organic forms of nitrogen, sulfur, phosphorus and other minerals

Question 14

Other life forms require microbes to survive
Without essential conversions, such as _______ ______, no plants or animals could live

Answer 14

Nitrogen fixation