Bio 1500 Test 4
1. Big Bang/Formation of Universe: 13.7 billion years ago
2. Earth is formed from collision of dust: 4.6 billion years ago
3. Moon is formed from collision: 4.5 billion years ago
4. Oldest rocks are formed: 3.8-4 billion years ago
5. First fossils: 3.5-3.8 billion years ago
6. Cyanobacteria: 2500 million years ago
7. First Eukaryotes: 2000 million years ago
8. Algea: 1200 million years ago
9. Ice Ages (Pangea): 750-600 million years ago
10. First Animals: 590 million years ago
,11. Cambrian explosion: 545-520 million years ago
12. Carboniferous (Dragonflies): 360-330 million years
13. First Dinosaurs: 230 million years ago
14. Birds: 150 million years ago
15. Dinosaur Extinction: 65 million years ago
16. Humans: 200,000 years ago
17. Diffusion: Movement of molecules from high to low concentration
18. How do individual particles move during diffusion?: Independently of one another, equal
probability to move in any direction.
19. What happens when equilibrium is reached?: Particles have an equal chance of crossing the
membrane.
20. Where did O2 come from?: Photosynthesis
,21. What does biogenic mean?: Life changed geology
22. Why does high O2 levels result in large organisms?: Metabolic rates are increased, oxygen
is delivered to tissues more eflciently.
23. Why were dragonflies (and other organisms) so large during carboniferous?-
: Higher O2 concentration.
24. What is the most important skill employers look for?: Ability to work within teams
25. How much are all combined exams weighted? (excluding the final): 38%
26. How much is each individual exam weighted (excluding the final)?: 7.6%
27. How much is the final weighted?: 17%
, 28. How are lab and discussion grades combined for a final grade?: Each grade total
is multiplied (ex. 0.9*0.85=0.77
29. How long did the Carboniferous period last?: Approximately 60 million years
30. Energy: capacity to do work
31. Kinetic Energy: Energy of movement (heat, light, electricity)
32. Potential Energy: stored energy (chemical)
33. 1st Law of Thermodynamic: Energy can only change forms
34. What is the largest source of energy?: The sun.
35. What can happen when light strikes an object?: It can be reflected, transmitted, or absorbed.
36. ATP: (adenosine triphosphate) main energy source that cells use for most of their work
37. Photosynthesis: light energy is used to make carbohydrate molecules from CO2 & H2O
1. Big Bang/Formation of Universe: 13.7 billion years ago
2. Earth is formed from collision of dust: 4.6 billion years ago
3. Moon is formed from collision: 4.5 billion years ago
4. Oldest rocks are formed: 3.8-4 billion years ago
5. First fossils: 3.5-3.8 billion years ago
6. Cyanobacteria: 2500 million years ago
7. First Eukaryotes: 2000 million years ago
8. Algea: 1200 million years ago
9. Ice Ages (Pangea): 750-600 million years ago
10. First Animals: 590 million years ago
,11. Cambrian explosion: 545-520 million years ago
12. Carboniferous (Dragonflies): 360-330 million years
13. First Dinosaurs: 230 million years ago
14. Birds: 150 million years ago
15. Dinosaur Extinction: 65 million years ago
16. Humans: 200,000 years ago
17. Diffusion: Movement of molecules from high to low concentration
18. How do individual particles move during diffusion?: Independently of one another, equal
probability to move in any direction.
19. What happens when equilibrium is reached?: Particles have an equal chance of crossing the
membrane.
20. Where did O2 come from?: Photosynthesis
,21. What does biogenic mean?: Life changed geology
22. Why does high O2 levels result in large organisms?: Metabolic rates are increased, oxygen
is delivered to tissues more eflciently.
23. Why were dragonflies (and other organisms) so large during carboniferous?-
: Higher O2 concentration.
24. What is the most important skill employers look for?: Ability to work within teams
25. How much are all combined exams weighted? (excluding the final): 38%
26. How much is each individual exam weighted (excluding the final)?: 7.6%
27. How much is the final weighted?: 17%
, 28. How are lab and discussion grades combined for a final grade?: Each grade total
is multiplied (ex. 0.9*0.85=0.77
29. How long did the Carboniferous period last?: Approximately 60 million years
30. Energy: capacity to do work
31. Kinetic Energy: Energy of movement (heat, light, electricity)
32. Potential Energy: stored energy (chemical)
33. 1st Law of Thermodynamic: Energy can only change forms
34. What is the largest source of energy?: The sun.
35. What can happen when light strikes an object?: It can be reflected, transmitted, or absorbed.
36. ATP: (adenosine triphosphate) main energy source that cells use for most of their work
37. Photosynthesis: light energy is used to make carbohydrate molecules from CO2 & H2O
