Where Did Life Come From?

Question 1

a famous chemistry experiment that simulated the conditions thought at the time (1952) to be present in the atmosphere of the early, prebiotic Earth, in order to test the hypothesis of the chemical origin of life under those conditions.

Answer 1

The Miller–Urey experiment (or Miller experiment)

Question 2

The Miller–Urey experiment (or Miller experiment) used ___

Answer 2

water (H2O), methane (CH4), ammonia (NH3), hydrogen (H2), and an electric arc

Question 3

Alexander Oparin and J.B.S Haldane’s Theory

Answer 3

The Theory of Primordial Soup

Question 4

What Eon: - Earth is formed around 4.5 billion years ago
- Another planet collided with the Earth and created the moon in the process
- After the crust cooled, there was some liquid water (for a little while) because, for the next couple hundred million years, Earth was showered with some hundred of mass of space rocks.

Answer 4

Hadean Eon

Question 5

The earliest possible time that life could have started on Earth

Answer 5

Archean Eon

Question 6

Characteristics of Life (MRS GREN)

Answer 6

Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition

Question 7

“The universe works to maximize entropy.”

Answer 7

The Second Law of Thermodynamics by Erwin Schrodinger

Question 8

The idea that life was brought to Earth

Answer 8

panspermia

Question 9

Shows the chemistry that makes biological molecules can happen pretty much anywhere

Answer 9

Murchison Meteorite

Question 10

LUCA means

Answer 10

Last Universal Common Ancestor

Question 11

What’s our Last Universal Common Ancestor

Answer 11

cyanobacteria