Origin of Life and Prokaryotes

The first life on Earth were _______.

• prokaryotes

• eukaryotes

• cyanobacteria

• protists

Tags

NGSS.HS-LS4-1

Which of the following are characteristics of prokaryotes?

• contain membrane-bound organelles

• have DNA as their genetic material

• are large, complex cells

• have cell walls

Which change to Earth was most conducive to the evolution of eukaryotic organisms?

• plate tectonics

• violent, high energy eruptions and explosions

• an abundance of nitrogen

• an abundance of oxygen

Tags

NGSS.HS-ESS2-7

NGSS.HS-LS4-5

This experiment by Stanley Miller provided proof of the Chemical Evolution Theory. What proof did it provide?

• cells were present only when the system was exposed to air, confirming all cells arise from other cells

• life could only arise in an atmosphere that contains abundant oxygen and water

• biologically essential organic compounds could be synthesized from inorganic ingredients

Tags

NGSS.HS-LS1-6

What type of molecule makes up the membrane of cells and pre-cells?

• carbohydrates

• phospholipids

• proteins

• nucleic acids

What are the two main branches of prokaryotes?

• Bacteria and Fungi

• Bacteria and Viruses

• Bacteria and Protists

• Bacteria and
  Archaea

Disease causing bacteria are called ________.

• photogenic

• pathogenic

• parasitic

• mutualistic

What do we call the poisonous proteins that some bacteria produce and secrete?

• endotoxins

• endospores

• exospores

• exotoxins

About how old is the Earth?

• 6 billion years old

• 4.6 million years old

• 8.3 million years old

• 4.6 billion years old

Tags

NGSS.HS-ESS1-6

Relationships between organisms in which one organism benefits and the other is harmed is called _____________.

• beneficial

• commensalism

• parasitism

• mutualism