A few questions on photosynthesis?

Question

1) what chemical change occurring during glycolysis can be represented by the equation:
glucose ---> pyruvic acid + pyruvic acid

2) does the total number of bonds in glucose equal the total number of bonds in both pyruvic acid molecules?

3) write the molecular formula of one molecule of pyruvic acid:

4) how many atoms of carbon hydrogen and oxygen are in two molecules of pyruvic acid?
c*h*o*

Answer 1

1) There are a lot of steps during glycolysis beginning from glucose to pyruvate.

Step 1: Glucose --> Glucose-6-phosphate (Phosphorylation catalyzed by glucokinase and hexokinase with ATP)
Step 2: Glucose-6-Phosphate --> Fructose-6-Phosphate (catalyzed by isomerase)
Step 3: Fructose-6-phosphate --> Fructose1-6biphosphate (catalyzed by phosphofructokinase with ATP)
Step 4: Fructose1-6biphosphate --> Glyceraldehyde-3-phosphate (catalyzed by aldorase)
Step 5: Glyceraldehyde-3-phosphate --> 1-biphosphoglycerade (catalyzed by Glyceraldehyde-3-phosphate dehydrogenase)
Step 6: 1-biphosphoglycerade -->3-phosphoglycerade (catalyzed by phosphoglycerade kinase)
Step 7: 3-phosphoglycerade --> 2-phosphoglycerade (catalzyed by phosphoglycerade kinase)
Step 8: 2-phosphoglycerade --> Phosphoenolpyruvate (catalyzed by enolase)
Step 9: Phosphoenolpyruvate --> Pyruvate (pyruvate kinase)

This is the 9 step process in glycolysis. Note that 2 pyruvates are formed. This means that from Step 5, the steps are repeated to 9 one more time.

2) No. Pyruvate: C3H4O3
Glucose: C6H12O6
There is a "net loss" of 4 hydrogen molecules which give rise to the energy released during electron transport chain.

3) Pyruvate: C3H4O3

4) I am sure you can count that on your own.