The monomer for carbohydrates.
What is monosaccharides?
The "C" in CHONPS.
What is Carbon?
This type of cell does not have a nucleus.
What is a prokaryote?
This condition on early Earth made it impossible for water vapor to become liquid at first.
What is high temperature?
The main cell part made up by lipids.
What is the cell membrane?
What "H" stands for in CHONPS.
What is Hydrogen?
This type of cell has membrane bound organelles.
What is a eukaryote?
After the appearance of cyanobacteria, this molecule was found in the atmosphere.
What is oxygen gas?
The macromolecule that is responsible for storing and transmitting genetic information.
What are nucleic acids?
The two elements that make up water.
What are hydrogen and oxygen?
This is a structure that ALL cells have that serve at their protection from the external environment.
What is a cell membrane?
In order to add oxygen to the atmosphere, this process had to occur.
What is photosynthesis?
Cholesterol is an example of this macromolecule.
What is a lipid?
This compound had to condense from vapor to liquid to create our oceans.
What is a prokaryote?
After the addition of this, macromolecules could be formed from their monomers.
What is energy?
The element that CAN be in 3 of the 4 macromolecules, but isn't REQUIRED.
What is sulfur?
This molecule was present at the hydrothermal vents, but NOT in the atmosphere of early Earth.
What is oxygen gas?
An organism can use chemicals such as those found at a hydrothermal vent do this process.
What is chemosynthesis?
This "feature" allowed the particles from volcanoes and meteorites hitting earth to form an atmosphere.
What is gravity?