I choose the option (4) chemical bond.
Glucose is decomposed to 2 pyruvate, acetyl-CoA, and then entering the TCA cycle. All the energy such as ATP, NADH, and FADH2 is generated from braking the chemical bond.
<span>When a plant is placed in pure distilled water, its cells will "Expand and becomes turgid"
Hope this helps!</span>
<span>Cells responsible for body movement are _____ cells. M</span>uscles