How Life Began

Which of the following theories explains the origin of life on Earth?

• Big Bang Theory

• Theory of Evolution

• Abiogenesis

• Cell Theory

What is the 'primordial soup' theory?

• A theory that life began in a warm pond or ocean from a combination of chemicals

• A theory that life was brought to Earth by meteorites

• A theory that life began in the deep sea hydrothermal vents

• A theory that life originated from volcanic eruptions

Tags

NGSS.HS-ESS1-6

Which experiment simulated early Earth conditions to test the origin of life?

• Miller-Urey experiment

• Hershey-Chase experiment

• Meselson-Stahl experiment

• Griffith's experiment

What gases were used in the Miller-Urey experiment to simulate early Earth's atmosphere?

• Oxygen, Nitrogen, Carbon Dioxide

• Methane, Ammonia, Hydrogen, Water Vapor

• Carbon Monoxide, Nitrogen, Oxygen

• Helium, Neon, Argon

Tags

NGSS.HS-PS1-2

Which molecule is considered the building block of life?

• DNA

• RNA

• Proteins

• Amino acids

Tags

NGSS.HS-LS1-6

What is panspermia?

• A theory that life originated from chemical reactions on Earth

• A theory that life was brought to Earth from outer space

• A theory that life began in the ocean

• A theory that life originated from volcanic activity

Which of the following is a characteristic of prokaryotic cells, believed to be among the first forms of life?

• They have a nucleus

• They have membrane-bound organelles

• They lack a nucleus

• They are multicellular

What role do hydrothermal vents play in theories about the origin of life?

• They provide sunlight necessary for photosynthesis

• They offer a source of heat and minerals for chemical reactions

• They are the source of oxygen for early life

• They are the primary source of water for early life

Which of the following is NOT a hypothesis about how life began on Earth?

• Abiogenesis

• Panspermia

• Spontaneous Generation

• Photosynthesis

What is the significance of ribozymes in the study of the origin of life?

• They are proteins that catalyze chemical reactions

• They are RNA molecules that can catalyze chemical reactions

• They are DNA molecules that store genetic information

• They are lipids that form cell membranes