Biochemistry/ Macro Molecules

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Across
  1. 3. __________, electrons and protons
  2. 4. Neutrons have ______ charge
  3. 5. a pure substance formed when 2 or more different elements combine
  4. 7. Nucleic Acids store and transmit ________ information
  5. 9. A a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion (two words
  6. 10. chemical bonds are _______ during chemical reactions
  7. 11. the minimum amount of energy needed for reactants to form products in a chemical reaction is called _______ energy. (starts with an a)
  8. 12. Organic compounds that are fatty acids
  9. 13. Atoms of the same element that have different number of neutrons
  10. 15. Large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose.
  11. 17. breaking chemical bonds _______ energy (starts with an r)
  12. 18. Proteins are made up of small carbon compounds called ________________
  13. 19. Electrons have a ____________
Down
  1. 1. Organic compounds that consist of large molecules composed of one or more long chains of amino acids
  2. 2. A chemical bond that involves sharing a pair of electrons between atoms in a molecule (two words)
  3. 3. Organic compounds that consist of many nucleotides linked in a long chain.
  4. 6. Protons, neutrons and electrons are ________ meaning particles smaller than the atom
  5. 8. forming chemical bonds ______ energy
  6. 14. Lipids are made up of 3 ________ and 1 Glycerol
  7. 16. Protons have a ________ charge
  8. 20. A pure substance that cannot be broken down into other substances by physical or chemical means