3.2 Vocabulary Review Photosynthesis

A colorless gas produced by the respiration of animals and plants, and by the combustion of organic matter; used by plants during photosynthesis

• carbon dioxide

• water

• glucose

• oxygen

A vital liquid compound made of two hydrogen atoms and one oxygen atom; essential for all living organisms and involved in many biological processes such as photosynthesis

• carbon dioxide

• water

• glucose

• oxygen

A simple sugar and an important energy source for living organisms; produced during photosynthesis and used in cellular respiration

• carbon dioxide

• water

• glucose

• oxygen

A colorless gas essential for respiration in most living organisms; produced as a byproduct of photosynthesis

• carbon dioxide

• water

• glucose

• oxygen

Organic compounds made of carbon, hydrogen, and oxygen, typically used by organisms for energy; includes sugars, starches, and fibers

• carbohydrate

• glycogen

• starch

A stored form of glucose found mainly in the liver and muscles of animals; used for energy when needed.

• carbohydrate

• glycogen

• starch

A complex carbohydrate made of long chains of glucose units; used by plants to store energy

• carbohydrate

• glycogen

• starch

A process in which substances (reactants) are transformed into different substances (products) by breaking and forming chemical bonds

• Chemical reaction

• reactant

• product

• molecule

 group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.

• Chemical reaction

• reactant

• product

• molecule

 A substance that takes part in and undergoes change during a chemical reaction.

• Chemical reaction

• reactant

• product

• molecule