When light strikes chlorophyll of photosystem II, a molecule loses electrons to an electron transport chain. What molecule donates electrons to chlorophyll so that chlorophyll doesn\'t run out of electrons? NAOPH water oxygen light Water molecules stick to other water molecules because ... water molecules are neutral, and neutral molecules are attracted to each other hydrogen bonds form between the hydrogen atoms of one water molecule and the oxygen atoms of other water molecules covalent bonds form between the hydrogen atoms of one water molecule and the oxygen atoms of other water molecules the hydrogen atoms of adjacent water molecules are attracted to one another What is the fundamental difference between covalent and ionic bonding? In a covalent bond, the partners have identical electronegativity, in an ionic bond, one them is more electronegative. In a covalent bond, the atoms Share a pair of electrons; in an ionic bond, one atom an electron from the other In covalent bonding, both partners end up with filled outer electron shells in ionic one partner does and the other does not Covalent bonds form between atoms of the same element; ionic bonds, between different element What major event occurs during the final phase of the Calvin Cycle (the regeneration Sunlight is used make CO_2 CO_2 are used to make sugar molecules A TP is used to make chlorophyll ATP is used to make RuBP molecules The following diagram depicts the energy changes associated with what type Solution 6. Water. Light dependent hydrolysis of one molecule of water releases 2 electrones that are shuttled into the photosynthesis II. 7. b. water molecules form intra-molecular hydrogen bonding (between oxygen of one molecule to hydrogen of other moleccule) because of which they attach to each other. 8. b. Covalent bonds share a pair of electrones whereas in an ionic bond there is a transfer of electrones from one electronic species to another. 9. d. ATP is used to regenerate RuBP. 3 ATP molecules are used to regenerate RuBP from glyceraldehyde-3-phosphate..