Biology chapter 2

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Across
  1. 2. - a particle of matter that uniquely defines a chemical element
  2. 3. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  3. 6. a relationship between people or groups based on shared feelings, interests, or experiences
  4. 7. the movement of a fluid from an area of higher concentration to an area of lower concentration
  5. 8. any of the class of soluble, crystalline, typically sweet-tasting carbohydrates found in living tissues and exemplified by glucose and sucrose.
  6. 9. a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system
  7. 14. the lowest part or edge of something, especially the part on which it rests or is supported.
  8. 15. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
  9. 17. a substance that takes part in and undergoes change during a reaction.
  10. 20. any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.
  11. 21. acid the building blocks of proteins
  12. 22. the strength and vitality required for sustained physical or mental activity
  13. 23. chemical compounds that show, in water solution, a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red
  14. 25. a substance which slows down or prevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme.
  15. 26. a substance made up of only one type of atom, all with the same number of protons
  16. 27. a thing or person that is the result of an action or process.
  17. 28. Change the material involved in the change is structurally the same before and after the change
Down
  1. 1. having electrical or magnetic polarity.
  2. 3. any of a large group of organic compounds that includes sugars, starch, and cellulose, containing hydrogen and oxygen in the same ratio as water (2:1) and used as structural materials and for energy storage within living tissues.
  3. 4. a thing that is composed of two or more separate elements; a mixture.
  4. 5. the sticking together of particles of the same substance.
  5. 10. a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
  6. 11. Change a change of materials into another, new materials with different properties and one or more than one new substances are formed
  7. 12. a substance made up of various types of particles that occupies physical space and has inertia
  8. 13. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch
  9. 16. a band of scar tissue that joins two surfaces of the body that are usually separate
  10. 18. compound any of a large class of chemical compounds in which one or more carbon atoms are covalently bound to atoms of other elements, most commonly hydrogen, oxygen or nitrogen.
  11. 19. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
  12. 24. (with reference to a solid) become or cause to become incorporated into a liquid so as to form a solution