Final Exam Chapter 1

Question 1

The First Cell

Answer 1

Both Prokaryotes and Eukaryotes
Descend from a single ancestor
3.8 Billion Years
Self-Replicating RNA

Question 2

Evolution of metabolism

Answer 2

Anaerobic glycolysis
Photosynthesis
Oxidative Metabolism

Question 3

Present Day Porkaryotes

Answer 3

Eubacteria

Archaebacteria

Question 4

Eukaryotic Cells

Answer 4

• Larger, more complex than prokaryotes

- Contain Nucleolus, cytoplasmic organelle and cytoskeleton

Question 5

Origin of Eukaryotes

Answer 5

Evolved from symbolic associations of prokaryotes

Genome came from a fusion of eubacteria and archeabacteria

Question 6

Development of multicellular organisms

Answer 6

• Simplest eukaryotes are unicellular

- multicellular organisms evolved from associations of unicellular eukaryotes (plants and animals)

Question 7

E-Coli

Answer 7

Geneticly Simple, easy to study

Question 8

Yeasts

Answer 8

Simplest Eukaryotic cells

Question 9

Light Micoscopy

Answer 9

Most cells and some organelles can be observed

Question 10

Electron Microscopy

Answer 10

Up to 100x greater than light microscopy

Question 11

Subcellular fraction

Answer 11

Bio analysis of differential centrifugation