In the firs reaction of glycolysis, glucose is converted to . The phosphate comes from . A is an enzyme that transfers the terminal phosphate of to a substrate. The product of this reaction is then to fructose-6-phosphate.
Fructose-6-phosphate is then phosphorylated by a second reaction, giving .

EMP Pathway - Embden Meyerhof Parnas Pathway

glucose 6-phosphate; ATP

kinase; ATP; isomerized

kinase; fructose 1,6-bisphosphate

Explanation:

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms