biology unit 1 lesson 11

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A(n) _______ is formed when one or more than one atom bonds to another atom.

`molecule

____ are the building blocks of proteins.

amino acids

What is the smallest unit of matter that still has the properties of the matter?

atom

What is known as the element of life?

carbon

A ___ is a substance that speeds up a chemical reaction without being used up in the reaction.

catalyst

A protein molecule that acts as a catalyst in living organisms is called a(n) _____.

enzyme

What is a macromolecule?

large molecule

____ are the building blocks of DNA and RNA.

nucleic acids

_____ are the molecules which are the result of any chemical reaction.

products

The molecules that combine in a chemical reaction are called _____.

reactants

A(n) ______ occurs when two or more atoms or molecules combine to make new molecules with different properties.

chemical reaction


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