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100

This organic macromolecule is made of monomers called amino acids.

What are proteins?

100

A fatty acid in which the carbon chain have only single bonds filled with hydrogens.

What are saturated fats?

100

This organic compound includes fats and oils which are used for long-term energy and in the cell membrane.

What is a lipid?

100

The millions of organic compounds can be grouped into these four major types of compounds.

What are carbohydrates, lipids, proteins, and nucleic acids?

100

A fatty acid that contains double-bonded carbon atoms and tends to be liquid at room temperature.

What are unsaturated fats?

200

Reactions in organisms that break down molecules into smaller units and release energy.

What is exothermic?

200

Water shares its electrons unevenly between the oxygen and the hydrogens causing a partial charge. This makes it a _______________.

What is a polar molecule?

200

This is a process that changes some chemical substances into others.

What is a chemical reaction?

200

A chemical reaction that absorbs energy is called this.

What is an endothermic reaction?

200

Enzymes bind specific molecules (or substrates) at this place. 

What is the active site?

300

This class of organic compounds include sugars or starches, and are used to store energy.

What are carbohydrates?

300

Acidity and alkalinity is measured on this scale.

What is the pH scale?

300

A solution with a pH lower than 7 is called this.

What is an acid?

300

An acid measures the amount of what ion?

What are hydrogen ions?

300

The type of bond that forms between polar molecules like water is known as _________________.

What is a hydrogen bond?

400

A substance that is an input to a chemical reaction is called a ________________.

What are reactants?

400

Proteins that speed up chemical reactions in cells so they can take place without burning flesh.

What are enzymes?

400

A solution with a pH higher than 7 is called ___________.

What is a base?

400

This class of organic molecules are built from nucleotides and include DNA & RNA which serve as information molecules. 

What are nucleic acids?

400

A substance that bonds to an enzyme's active site that prevents the normal substrate from binding.

What is an inhibitor?

500

Reactions that store energy. 

What is endothermic?

500

The resulting substances from a chemical reaction.

What are products?

500

This is a process that changes some chemical substances into others.

What is a chemical reaction?

500

The energy needed to start a chemical reaction is called ___________.

What is activation energy?

500
These two capillary forces act together and are the reason trees can pull water up their trunk against gravity.

What is adhesion and cohesion?