Which statement best describes how the energy stored in atp is released to drive biochemical reactions? a. energy is released when the ribose sugar reacts with oxygen during aerobic respiration. b. energy is released when adenine is removed from ribose by dehydration synthesis. c. energy is released when a phosphate group is removed by hydrolysis.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.