Theories on the Origin of Life

Question 1

Main supporters of Spontaneous Generation

Answer 1

Aristotle, Epicurus, Von Helmont

Question 2

Bodies and organs have been designed to full meet the needs of the environment

Answer 2

Theory of Special creation

Question 3

Also called abiogenesis or biopoesis

Answer 3

Theory of Spontaneous Generation

Question 4

experiment set-up was boiled gravy/broth

Answer 4

Spallanzani

Question 5

All different kinds of animals and plants were created at ones.

Answer 5

Theory of Special Creation

Question 6

Life evolved in the oceans during a period when the the atmosphere was containing H2, H20, NH3, CH4, CO2

Answer 6

Theory of Biochemical Evolution

Question 7

life was given to Earth by extraterrestrial life forms

Answer 7

Directed Panspermia

Question 8

Things originated spontaneously from inanimate objects

Answer 8

Theory of Spontaneous Generation (Abiogenisis or Biopoesis)

Question 9

Living things can only arise from living things and cannot be spontaneously generated.

Answer 9

Theory of Biogenesis

Question 10

life had originated from other planets in the universe and came to earth on asteroids

Answer 10

Theory of Panspermia

Question 11

Life may have begun at submarine hydrothermal vents

Answer 11

Deep-sea Hydrothermal Vent Theory

Question 12

All organism were created in the same way they exist today

Answer 12

Theory of Special Creation

Question 14

organic molecules somehow metabolized to create first cells (heterotrophs) which gave way to the emission of carbon dioxide which created autotrophs

Answer 14

Heterotroph Theory

Question 15

experiment set-up was jars and meat

Answer 15

Redi

Question 17

proposed by richter in 1865

Answer 17

Theory of Panspermia

Question 17

life came from outside the solar system and travelled with debris

Answer 17

Lithopanspermia (interstellar panspermia)

Question 19

life came from within the solar system and travelled with debris

Answer 19

Ballistic Panspermia (interplanetary panspermia)

Question 20

Proposed by Stanley Miller and supported by Urey

Answer 20

Theory of Biochemical Evolution

Question 21

experiment set-up was boiled broth and sterilized flasks

Answer 21

Pasteur

Question 21

inorganic compounds (water/ocean) was synthesized by lightning making it into organic compounds (amino acids)

Answer 21

Miller-Urey experiment (theory of biochemical evolution)

Question 22

Supported by the experiments of Spallanzani, Redi, Pasteur

Answer 22

Theory of Biogenesis

Question 22

Proposed by Alexander Oparin

Answer 22

Heterotroph Theory