Linean Classification
What are the 3 Domains?
1. Bacteria
2. Archea
3. Eukarya
What was the name of the first cell
LUCA
4.5 Billion Years
free space im tired ash
yay 👼
Write the name of this species "Fractercula Arctica"
- Fractercula arctica
- F. arctica
- Fractercula arctica
Fill in the 3 boxes for cell #3
- Prokaryote
- Aerobic + Anaerobic
- Hetero + Auto
What was the role of Oxygen?
trick question, there was no oxygen 🙅♀️
Name 3 differences between prokaryotes and eukaryotes
P: no nucleus, circular DNA, smaller, no organelles, dif ribosomes, pilli
E: bigger, organelles, nucleus, mitosis, helix DNA, cillia
What are the 4 Kingdoms under eukarya? For each name 1 characteristic
- Fungi
- Animal
- Plant
- Protist
(Characteristics may vary)
Why did RNA World come before DNA world?
- structural differences
- DNA needs primer
Why was the earth so hot?
No ozone layer, allowed for intense UV
Draw the structure of an amino acid
C in the center
Carboxyl group (CO2H)
Amino Group (NH2)
R group
H
Name the 3 categories of protists.
- Slime molds
- protazoa
- algae
In the cell evolution chart, what were the selective pressures that caused the evolution of cells?
- Run out of resources/food, pressured to be autotrophs
- Oxygen introduced, aerobic
- Pressure to get more complex/bigger (eukaryotic)
Name the gasses present in early earth (there are 3 main ones)
1. Carbon Dioxide
2. Methane
3. Ammonia
Explain the Endosymbiosis and provide 1 piece of evidence
Over time, prokaryotes absorbed (endocytosis) other prokaryotes and as a result, specific organelles were produced
Evidences:
- Mitochondria and Chloroplasts have their own unique DNA
- Chloroplast can't be reproduced by cell
- Have 2 membranes
What are all the groups, in order, of the Linean classification system?
1. Domain
2. Kingdom
3. Phylum
4. Class
5. Order
6. Family
7. Genus
8. Species
Name the 5 stages, up to the first cell. Provide the advancement in each stage.
1- Prebiotic chemistry (Basic gases, no life yet)
2- Pre-RNA World (Biomolecules)
3- RNA World (RNA, Comp. DNA, Polypeptides)
4- DNA/Protein World (DNA, Proteins, Lipid spheres)
5- The Primordial cell (functional cell system)
In early earth, where did the first living cells live? What were the 2 types?
Hydrothermal Vents
- Black smoker
- White smoker
How did the Miller Urey experiment simulate early earth conditions and what was the result? (Name elements of the experiments design/describe)
1. Heated water (water vapor), Electrodes (lighting), Vacuum pump (no O2), the gases
2. In these conditions, amino acids were created