4. Stored chemical energy; sugar

The chemical energy in sugar is stored in the covalent bonds between the atoms that make up the sugar molecule. ... During cellular respiration, the glucose and oxygen gas that are made during photosynthesis are converted into water, carbon dioxide gas, and an energy source called ATP (adenosine triphosphate).

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

hope it

and ur welcm

: )