Origin of Life on Earth

Disproved the theory of spontaneous generation 1668 while experimenting with meat, flies and maggots.

• Linneaus

• Frances Redi

• Darwin

• Clark

Disproved the theory of Spontaneous generation in 1800s after his work with S-shaped flasks.

• Charles Darwin

• Francesco Redi

• Loius Pasteur

• Clark

Miller and Urey conducted experiments to test the origins of life hypothesis. In their experiment electric sparks were passed through a mixture of gases similar to the early atmosphere of the Earth. What did they find?

• High temperatures

• Nothing happened

• Amino Acids formed

• Eukaryotic cells formed

Tags

NGSS.HS-LS1-6

The theory of Endosymbiosis explains

• The origin of eukaryotes
• How species develop
• How bacteria live
• Why cells rely on one another

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Rough ER & Smooth ER
• Mitochondria & Flagellum
• Chloroplast & Mitochondria
• Chloroplast and Golgi apparatus

The theory that mitochondria and chloroplasts were once ancient prokaryotic is called

• endosymbiotic theory
• seed theory
• primordial soup
• origin of life

What is the idea that LIFE arises from LIFE?

• biogenesis

• spontaneous generation

• evolution

• genetics

What piece of equipment did Pasteur use in his experiment which allowed air to enter but trapped the dust particles in the air?

• microscope

• Erlynmeyer flask

• Swan-neck flask

• Wide mouth beaker

What is the idea that life can arise form NONLIVING material?

• biogenesis

• evolution

• spontaneous combustion

• spontaneous generation

The first organisms to appear on earth were

• aerobic heterotrophs

• anaerobic heterotrophs

• cyanobacteria

• photosynthetic prokaryotes