Across
- 2. adenosine triphosphate, an organic molecule that acts as the main energy source for cell processes
- 3. the capacity to do work
- 6. an organic compound that is made of one or more chains of amino acids and that is a principal component of all cells
- 7. a substance that forms in a chemical reaction
- 8. any compound that increases the number of hydroxide ions when dissolved in water
- 13. Energy the minimum amount of energy required to start a chemical reaction
- 16. the force that holds molecules of a single material together
- 19. a substance that cannot be separated or broken down into simpler substances by chemical means
- 21. a substance or molecule that participates in a chemical reaction
- 22. a value that is used to express the acidity or alkalinity (basicity) of a system
- 23. the reactant in reactions catalyzed by enzymes
- 24. a class of molecules that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen
- 27. Acid an organic compound, either RNA or DNA, whose molecules are made up of one or two chains of nucleotides and carry genetic information
Down
- 1. a solution made from a weak acid and its conjugate base that neutralizes small amounts of acids or bases added to it.
- 2. Acid a compound of a class of simple organic compounds that contain a carboxyl and an amino group and that combine to form proteins
- 4. an organic compound that consists of a sugar, a phosphate, and a nitrogenous base
- 5. a group of atoms that are held together by chemical forces
- 9. any compound that increases the number of hydronium ions when dissolved in water
- 10. Electron an electron that is found in the outermost shell of an atom and that determines the atom's chemical properties
- 11. the smallest unit of an element that maintains the chemical properties of that element
- 12. A molecule, either protein or RNA, that acts as a catalyst in biochemical reactions
- 14. a substance made up of atoms of two or more different elements joined by chemical bonds
- 15. an atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge
- 17. a homogeneous mixture throughout which two or more substances are uniformly dispersed
- 18. deoxyribonucleic acid, the material that contains the information that determines inherited
- 20. a fat molecule or a molecule that has similar properties, including waxes and steroids
- 21. ribonucleic acid, a natural polymer that is present in all living cells and that plays a role in protein
- 25. the attractive force between two bodies of different substances that are in contact with each other
- 26. Site on an enzyme, the site that attaches to a substrate