Is this Biology? I learned this in Chemistry!
Answer: A - non-polar Covalent Bond
The hydrogen and oxgen are attracted to each other.
The 'H+' being slightly polar, and the 'O2-' slightly opposite.
For each molecule of glucose consumed, the Krebs cycle occurs: D. twice
1 glucose --> 2 pyruvate, each one entering the Krebs as acetyl-CoA
B. Cytoplasm- is made up of a jelly-like substance composed of mainly water and found between the cell membrane and nucleus. The cytoplasm makes up most of the body cells which hold organelles as well.