Across
- 2. A substance produced by a living organism which acts as a Catalyst to bring about a specific bio chemical reaction.
- 3. Chemical element number six, a nonmetal which has two forms(diamond and graphite)
- 5. A group of compounds that store energy, signal, and act as structural components of cell membranes.
- 8. The chemical breakdown of a compound due to reaction with water.
- 9. The minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
- 10. A group of organic compounds that include sugars, starch, and cellulose and used as structural materials and for energy storage within living tissues.
- 12. A substance on which an enzyme acts.
- 13. An organic substance in living cells, especially DNA and RNA which consists of nucleotides in a long chain.
- 15. A molecule that can be bonded to other identical molecules to form a polymer.
- 17. A carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
- 18. A molecule that contains nitrogen and has the chemical properties of a base.
- 19. A substance that increases the rate of chemical reaction without its self undergoing any permanent chemical change.
- 20. A region on an enzyme that binds to a protein or other substances during a reaction.
Down
- 1. A pentose(five–carbon sugar) biological molecule.
- 4. A molecule that is produced by a living organism.
- 6. Large biomolecules and micro molecules that comprise one or more long chains of amino acid residues.
- 7. A thing or a person that is the result of an action or process.
- 11. The building blocks of polypeptides and proteins and play important roles in metabolic pathway, gene expression, and cell signal transduction regulation.
- 14. A substance of very large molecules called macromolecules composed of repeating subunits.
- 16. A substance that takes part in and undergoes change during a reaction.