Here's a breakdown:
* Chemical Reaction: A process that involves the rearrangement of atoms and molecules, resulting in the formation of new substances.
* Reactant: The substances that go into a chemical reaction.
* Product: The new substances that are formed as a result of a chemical reaction.
Examples of Reactants in Biology:
* Photosynthesis: Carbon dioxide (CO2) and water (H2O) are the reactants in photosynthesis.
* Cellular Respiration: Glucose (C6H12O6) and oxygen (O2) are the reactants in cellular respiration.
* Enzyme Catalysis: The specific molecule that an enzyme acts upon is a reactant.
Key Points:
* Reactants are consumed during the reaction.
* The products of one reaction can be the reactants of another reaction.
* The rate of a reaction can be influenced by factors such as temperature, concentration of reactants, and the presence of catalysts (like enzymes).
Understanding reactants is fundamental to understanding how chemical reactions occur within living organisms, and how those reactions drive essential biological processes.
