Atoms
Chemical reactions
pH
Proteins
Biological building blocks
100

Smallest unit of matter.

What is an atom?

100

This is the general term for any process that changes substances into new substances with different properties.

What is a chemical reaction?

100

Acidic solutions have pH values in this range.

What is 0 to 6? or below 7?

100

These are the basic building blocks of all proteins.

What are amino acids?

100

The monomer unit of proteins.

What are amino acids?

200

The Number of protons in an atom is known as.

What is Atomic number?

200

This is the name for the new substances made after a chemical reaction happens.

What are products?

200

pH of human blood.

What is 7.35-7.45?

200

This is the simplest level of protein structure: just the linear sequence of amino acids.

What is primary structure?

200

This molecule is the primary energy currency of the cell.

What is ATP?

300

The second electron shell can contain up to how many electrons.

What is 8 electrons?

300

Reactions that release energy (heat) to the surroundings are described by this term.

What is exothermic?

300

Any substance the removes hydrogen ions from a solution.

What is a base?

300

Molecules made up of amino acids held together by peptide bonds.

What are peptides?

300

These macromolecules are hydrophobic and function in long-term energy storage, cell membranes, and hormones examples: fats, oils, steroids.

What are lipids?

400

The mass number of an atom is equal to the total number of what,

What is protons and neutrons?

400

This is the minimum energy required to start a chemical reaction.

What is activation energy?

400

Compounds that stabilize pH by either removing or replacing hydrogen ions.

What are buffers?

400

A molecule that consists of two amino acids.

What is a dipeptide?

400

These are the four main classes of large biological molecules: carbohydrates, lipids, proteins, and this one that stores genetic information.

What are nucleic acids?

500

Largest size of an atom.

What is 0.5 nanometers?

500

This reaction breaks down a polymer into monomers by adding water.

What is hydrolysis?

500

Each whole number change on the pH scale represents this factor difference in [H⁺] concentration.

What is 10?

500

When a protein loses its shape and function due to heat, pH change, or other factors, it has undergone this process.

What is denaturation?

500

This is the simplest type of carbohydrate; it cannot be broken down into smaller sugars.

What is a monosaccharide?