Macromolecules
What are lipids?
Fats and oils
What is a chemical reaction?
The change of one substance into another
What do hydrogen bonds do?
Keep water in the liquid phase even though it shouldn't be when at room temp.
A living individual thing.
What's the first level?
Population, is the number of the same species in a specific area.
Why is carbon important?
Because carbon is found in all living things.
What is conservation of matter?
Matter cannot be created or destroyed under normal conditions.
How much water makes up Earth's surface?
75%
What's the dependent variable in an experiment?
The thing that's affected by other factors
What is the second level?
A community- all the populations in the same area.
What is proteins job?
To help muscle tissue and speed up reactions.
What is endothermic?
When energy is absorbed during the reaction.
Whats the pH when something is neutral?
7
What is the independent variable in an experiment?
The thing that is changed by the experimenter
What is the third level?
Ecosystem- abiotic and biotic factors in an area.
What are nucleic acids made of?
Smaller pieces called nucleotides.
What is exothermic?
What is the pH range for acids?
0-7
What is the constant in an experiment?
What is the fourth level?
Biome- similar ecosystems with similar enviorments
What are lipids made of?
Chains of fatty acids.
What are catabolic reactions?
They break down large molecules and supply energy.
What is the pH range for bases?
7-14
What is gene theory?
When characteristics are transferred from parents to offspring.
What is the last level?
Biosphere- part of Earth where life exists