| A | B |
|---|
| plant | Multicellular organisms produce their own food from inorganic matter by photosynthesis, |
| sunlight | Light from the sun. |
| chlorophyll | A green pigment found in the chloroplasts of plants, algae, and some bacteria. |
| water | A colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms. |
| carbon dioxide | A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. |
| sugar | Any of the class of soluble, crystalline, typically sweet-tasting carbohydrates found in living tissues and exemplified by glucose and sucrose. |
| oxygen | A colorless, odorless reactive gas and the life-supporting component of the air. |
| photosynthesis | The process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water. |
| food chain | A series of events in which one organism eats another. |
| food web | The pattern of overlapping food chains in an ecosystem. |
| chloroplast | A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food. |
| chemical energy | Stored in the bonds of chemical compounds released in a chemical reaction. |
| raw material | The basic material from which a product is made. |
| product | The substances that result from recombination of atoms in a chemical reaction, written on the right side of the equation. |
| chemical bond | Any rearrangement of electrons in two atoms that generates a force, causing the atoms to be bound to each other, forming a molecule. |
| cellular respiration | The process by which cells break down simple food molecules to release the energy they contain. |
| animal | A living organism that feeds on organic matter, typically having specialized sense organs and nervous system and able to respond rapidly to stimuli. |
| organelle | A tiny cell structure that carries out a specific function within the cell. |
| producer | An organism that can make its own food. |
| reactant | Substances initially present in a chemical reaction that are consumed during the reaction to make products. |
