Across
- 2. the chemical processes that occur within a living organism in order to maintain life.
- 6. a substance produced by a living organism that acts as a catalyst to speed up a specific biochemical reaction.
- 8. (of a reaction or process) accompanied by or requiring the absorption of heat.
- 12. coordinate body activities such as insulin which regulates the amount of sugar in the blood.
- 14. help control movement such as proteins in the muscles which help control contraction.
- 16. a molecule that can be bonded to other identical molecules to form a polymer.
- 17. a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid, and higher values more alkaline
- 18. the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction
- 20. any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose
- 21. a complex organic substance present in living cells, especially DNA or RNA, whose molecules consist of many nucleotides linked in a long chain.
- 22. an attraction between atoms that allows the formation of chemical substances that contain two or more atoms
Down
- 1. a simple organic compound containing both a carboxyl (—COOH) and an amino (—NH2) group.
- 3. a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
- 4. a molecule that binds to an enzyme and decreases its activity
- 5. protein that accelerates the speed of chemical reactions such as digestive enzymes which break down food in the digestive tract
- 7. used for support such as connective tissue and keratin that forms hair and finger nails.
- 9. move many substances throughout the body. An example is hemoglobin that transports oxygen from the lungs to the other parts of the body to be used by cells in cellular respiration
- 10. any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water
- 11. transformation of one molecule to a different molecule inside a cell and mediated by enzymes
- 13. (of a reaction or process) accompanied by the release of heat.
- 15. any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms, especially as structural components of body tissues such as muscle, hair, collagen, etc., and as enzymes and antibodies
- 19. form the basic structural unit of a nucleic acid
- 23. a molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.
- 24. the process of breaking down food by mechanical and enzymatic action into substances that can be used by the body.